Linear Technology DC2007A-C User manual

dc2007a_cf

DEMO MANUAL DC2007A-C

DESCRIPTION

LTM4630EV

High Efficiency, PolyPhase

140A Step-Down Power

µModule Regulator

Demonstration circuit 2007A-C features a PolyPhase

design using the LT M

4630EV, the high efficiency,

high density, dual 18A, switch mode step-down power

µModule

regulator. The input voltage is from 4.5V to

15V. The output voltage is jumper selectable from 0.9V to

1.8V. The DC2007A-C can deliver a nominal 140A output

current. As explained in the data sheet, output current

derating is necessary for certain VIN, VOUT, and thermal

conditions. The LTM4630 on the DC2007A-C always

operates in continuous conduction mode. The switching

frequency can be programmed through a resistor or can

be synchronized to an external clock signal. The board

allows the user to program how its output voltage ramps

L, LT, LTC, LTM, Linear Technology, the Linear logo, PolyPhase and µModule are registered

trademarks of Linear Technology Corporation. All other trademarks are the property of their

respective owners.

up and down through the TRACK pin. The output voltage

is tightly regulated between “VO+” and “VO-” through

remote output voltage sensing which improves output

voltage regulation at heavy loads. These features and

the availability of the LTM4630EV in a compact 16mm ×

16mm ×4.41mm LGA package make it ideal for use in

many high density point-of-load regulation applications.

The LTM4630 data sheet must be read in conjunction with

this demo manual for working on or modifying the demo

circuit DC2007A-C.

Design files for this circuit board are available at

http://www.linear.com/demo

Figure 1. 70A PolyPhase LTM4630/DC2007A-C Demo Board

dc2007a_cf

DEMO MANUAL DC2007A-C

QUICK START PROCEDURE

PERFORMANCE SUMMARY

Specifications are at TA= 25°C

PARAMETER CONDITIONS / NOTES VALUE

Input Voltage Range 4.5V ~ 15V

Output Voltage VOUT VIN = 4.5A ~ 15V, IOUT = 0A ~ 140A, JP5: 1.0V 1.0V ±1.5% (0.985V ~ 1.015V)

Maximum Continuous Output Current Derating Is Necessary for Certain VIN, VOUT and

Thermal Conditions, See Data Sheet for Details.

140A

Default Operating Frequency 400kHz

Resistor Programmable Frequency Range 400kHz to 780kHz

External Clock Sync. Frequency Range 400kHz to 780kHz

Efficiency VIN = 12V, VOUT = 1.0V, IOUT = 140A, fSW = 400kHz 83.7% See Figure 3

Load Transient VIN = 12V, VOUT = 1.0V, ISTEP = 0A ~ 35A <100mV, See Figure 4

Output Voltage Ripple VIN = 12V, VOUT = 1.0V, IOUT = 140A <5mV, See Figure 5

Demonstration circuit DC2007A-C is easy to set up to

evaluate the performance of PolyPhase operation of the

LTM4630EV. Due to the high input/output current, user

should select the proper input supply/load/cable which

can sustain the full load operation. It’s recommended to

pull load current from J2 and J4. The load current pulled

from J5 and J6 shouldn’t exceed 18A. Please refer to

Figure 2 for proper measurement setup and follow the

procedure below:

1. Place jumpers in the following positions for a typical

1.0VOUT application:

JP1 JP2 JP4 ~ JP8

CLK RUN VOUT SELECT

INT OFF ON JP5/1.0V

2. With power off, connect the input power supply, load

and meters as shown in Figure 2. Preset the load to 0A

and VIN supply to 12V.

3. Turn on the power supply at the input. Place JP2 to the

ON position. The output voltage between “VO+” and

“VO-” should be 1.0V ±1.5% (0.985V ~ 1.015V).

4. Oncetheproperoutputvoltageisestablished,adjustthe

load within the operating range and observe the output

voltage regulation, output voltage ripple, efficiency

and other parameters. Output voltage ripple should

be measured at J7 with BNC cables. 50Ω termination

should be set on the oscilloscope or BNC cables.

5. (Optional) For an optional load transient test, apply an

adjustable pulse signal between “IOSTEP CLK” and the

“GND” test point. Pulse amplitude (3V~ 3.5V) sets the

loadstepcurrentamplitude.Theoutputtransientcurrent

can be monitored at the BNC connector, J8 (5mV/A).

The pulse signal should be very small duty cycle (<10%)

to limit the thermal stress on the transient load circuit.

6. (Optional) The LTM4630 can be synchronized to an

external clock signal. Place the JP1 jumper on EXT

and apply a clock signal (0V~ 5V, square wave) on the

“EXT_CLK” test point.

7. (Optional)The outputsofthe LTM4630 can trackanother

supply. The output voltage tracks the voltage on TRACK

when a valid signal is applied on the test point.

8. (Optional) The DC2007A-C can be configured to a dual

output configuration with VO at 122.5A load current and

VO2 at 18A load current. Stuff a 0Ω resistor on R61

and a 0.1µF on C14. Remove R22, R23, R24, R26, R27,

R28, R32, R33, R35. Output voltage VO2 is set by R37

based on the equation VO2 = 0.6V(1 + 60.4K/R37).

dc2007a_cf

DEMO MANUAL DC2007A-C

QUICK START PROCEDURE

Figure 2. Test Setup of DC2007A-C

dc2007a_cf

DEMO MANUAL DC2007A-C

PARTS LIST

QUICK START PROCEDURE

Figure 3. Measured Efficiency VIN = 12V, fSW = 400kHz

Figure 5. Measured Output Voltage Ripple at 12VIN, 1.0VOUT,

140A with Standard Demo Circuit Default Setup

Figure 6. Thermal Capture at 12VIN, 1.0VOUT, 140A

(TA= 25°C, 400 LFM Airflow and No Heat Sink)

Figure 4. Load Transient 0A to 35A (VIN = 12V, VOUT = 1.OV)

LOAD CURRENT (A)

EFFICIENCY (%)

100

20 40 60 80 100 120 140

VO= 1.8V

VO= 1.5V

VO= 1.2V

VO= 1.0V

VO= 0.9V

0A TO 35A LOAD STEP

1.0V OUTPUT (20MHz BW) [50mV/DIV]

1.0V OUTPUT (20MHz BW) [5mV/DIV]

ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER

Required Circuit Components

1 16 CIN3, CIN4, CIN5, CIN6, CIN7, CIN8, CIN9, CIN10, CIN12,

CIN13, CIN14, CIN15, CIN16, CIN17, CIN18, CIN19

CAP, 1210 22µF 10% 25V X5R AVX, 12103D226KAT2A

2 12 CO1, CO5, CO7, CO11, CO15, CO18, CO20, CO24, CO26,

CO30, CO34, CO38

CAP, 1210 100µF 20% 10V X5R TAIYO YUDEN, LMK325BJ107MM-T

3 10 CO4, CO6, CO10, CO12, CO19, CO23, CO25, CO29,

CO31, CO37

CAP, 7343 470µF 20% 4V POSCAP SANYO, 4TPE470MCL

4 14 R6, R19, R20, R27, R28, R32, R33, R34, R35, R40, R45,

R46, R62, R63

RES, 0603 0Ω JUMPER VISHAY, CRCW06030000Z0EA

5 4 U1, U2, U3, U4 IC, VOLTAGE REGULATOR, LGA LINEAR TECH., LTM4630EV#PBF

Additional Demo Board Circuit Components:

1 1 CIN1 CAP, 150µF 25% 25V ALUM SUN ELECT., 25CE150AX

2 2 CIN2, CIN11 CAP, 1206 1µF 10% 25V X5R TAIYO YUDEN, TMK316BJ105KD-T

dc2007a_cf

DEMO MANUAL DC2007A-C

PARTS LIST

ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER

3 1 C1 CAP, 0603 100pF 10% 25V XNPO AVX, 06033A101KAT2A

4 0 C2, C3, C5, C8, C9, C12, C13, C14, C15, C16, C17, C20, C21,

C26, C29, C30

CAP, 0603 OPTION OPTION

5 4 C4, C10, C18, C22 CAP, 0603 2.2µF 20% 10V X5R TAIYO YUDEN, LMK107BJ225MA-T

6 6 C6, C11, C19, C23, C27, C28 CAP, 0603 1µF 10% 10V X7R TAIYO YUDEN, LMK107BJ105KA-T

7 2 C7, C25 CAP, 0603 0.1µF 10% 25V X7R AVX, 06033C104KAT2A

8 1 C24 CAP, 0603 0.01µF 10% 100V X7R AVX, 06031C103KAT2A

9 0 CO2, CO3, CO8, CO9, CO13, CO14, CO16, CO17, CO21,

CO22, CO27, CO28, CO32, CO33, CO35, CO36

CAP, 1210 OPTION OPTION

10 2 Q1, Q2 MOSFET, N-CH D-S 30V TO252 VISHAY, SUD50N04-8M8P-4GE3

11 4 R1, R3, R25, R29 RES, 0603 10Ω 5% 1/10W VISHAY, CRCW060310R0JNEA

12 5 R2, R14, R21, R39, R47 RES, 0603 121k 1% 1/10W VISHAY, CRCW0603121KFKEA

13 4 R4, R36, R41, R54 RES, 0603 10k 5% 1/10W VISHAY, CRCW060310K0JNEA

14 0 R5, R7, R8, R10, R30, R37, R38, R42, R44, R48, R49, R50,

R52, R53, R55, R61

RES, 0603 OPTION OPTION

15 4 R9, R31, R43, R51 RES, 0603 100k 1% 1/10W VISHAY, CRCW0603100KFKEA

16 1 R15 RES, 0603 90.9k 1% 1/10W VISHAY, CRCW060390K9FKEA

17 1 R16 RES, 0603 60.4k 1% 1/10W VISHAY, CRCW060360K4FKEA

18 1 R17 RES, 0603 40.2k 1% 1/10W VISHAY, CRCW060340K2FKEA

19 1 R18 RES, 0603 30.1k 1% 1/10W VISHAY, CRCW060330K1FKEA

20 4 R22, R23, R24, R26 RES, 2010 0Ω JUMPER VISHAY, CRCW20100000Z0EF

21 2 R56, R57 RES, 2512 0.010Ω 1% 1W VISHAY, WSL2512R01000FEA

22 0 R58, R59 RES, 2512 OPTION OPTION

23 1 R60 RES, 1206 0Ω JUMPER VISHAY, CRCW12060000ZOEA

24 0 R13 RES, 0603 OPTION OPTION

Hardware

1 11 E1, E2, E3, E4, E6, E7, E8, E9, E12, E13, E22 TURRET MILL MAX 2308-2-00-80-00-00-07-0

2 2 E19, E20 TURRET MILL MAX 2501-2-00-80-00-00-07-0

3 2 JP1, JP2 HEADER, 3-PIN 2mm SAMTEC TMM-103-02-L-S

4 5 JP4, JP5, JP6, JP7, JP8 HEADER, 2-PIN 2mm SAMTEC TMM-102-02-L-S

5 4 J1, J2, J3, J4 STUD PEM KFH-032-10

6 2 J5, J6 JACK, BANANA KEYSTONE 575-4

7 8 NUT, BRASS 10-32 ANY

8 4 LUG RING #10 KEYSTONE 8205

9 4 WASHER, TIN PLATED BRASS #10 ANY

10 2 J7, J8 CON, BNC CONNEX 112404

11 3 JP1, JP2, JP4 SHUNT SAMTEC 2SN-BK-G

12 4 STAND-OFF, NYLON KEYSTONE 8833

dc2007a_cf

DEMO MANUAL DC2007A-C

SCHEMATIC DIAGRAM



VOUT

SELECT

NOTE:UNLESSOTHERWISESPECIFIED,

1.ALLCAPACITORS,RESISTORS0603.

140A

VFB

PGOOD

COMP

RUN

TRACK

VOUT

VFB

PGOOD

COMP

RUN

TRACK

DIFFP

DIFFN

VFB

PGOOD

COMP

CLKOUT_U1

RUN

TRACK

VFB

VIN

INTVCC_U1

VOUT

VO+

VO-

VO+

INTVCC_U1

VIN

VO+ VO-

VOUT

EXTVCC

SIZE

DATE:

IC NO. REV.

SHEET OF

TITLE:

APPROVALS

PCB DES.

APP ENG.

TECHNOLOGY

Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY

CUSTOMER NOTICE

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SCHEMATIC

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

SCALE = NONE

www.linear.com

DEMO CIRCUIT 2007A

Thursday, August 08, 2013

HIGH EFFICIENCY, POLYPHASE,

N/A

LTM4630EV

MI/RB

Haoran W.

STEP-DOWN POWER MODULE REGULATOR

SIZE

DATE:

IC NO. REV.

SHEET OF

TITLE:

APPROVALS

PCB DES.

APP ENG.

TECHNOLOGY

Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY

CUSTOMER NOTICE

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SCHEMATIC

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

SCALE = NONE

www.linear.com

DEMO CIRCUIT 2007A

Thursday, August 08, 2013

HIGH EFFICIENCY, POLYPHASE,

N/A

LTM4630EV

MI/RB

Haoran W.

STEP-DOWN POWER MODULE REGULATOR

SIZE

DATE:

IC NO. REV.

SHEET OF

TITLE:

APPROVALS

PCB DES.

APP ENG.

TECHNOLOGY

Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY

CUSTOMER NOTICE

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SCHEMATIC

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

SCALE = NONE

www.linear.com

DEMO CIRCUIT 2007A

Thursday, August 08, 2013

HIGH EFFICIENCY, POLYPHASE,

N/A

LTM4630EV

MI/RB

Haoran W.

STEP-DOWN POWER MODULE REGULATOR

REVISION HISTORY

DESCRIPTION DATE APPROVEDECO REV

Haoran W.

PROD

-1 04/17/13

REVISION HISTORY

DESCRIPTION DATE APPROVEDECO REV

Haoran W.

PROD

-1 04/17/13

REVISION HISTORY

DESCRIPTION DATE APPROVEDECO REV

Haoran W.

PROD

-1 04/17/13

CO4

470uF

7343

CO4

470uF

7343

100pF

4.5V -15V

VIN

4.5V -15V

VIN

CO9

(OPT)

1210

CO9

(OPT)

1210

CO8

(OPT)

1210

CO8

(OPT)

1210

SW1-1

CIN6

22uF

25V

1210

CIN6

22uF

25V

1210

1uF

10V

1uF

10V

R60

0 Ohm

1206

R60

0 Ohm

1206

100k

CO1

100uF

10V

1210

CO1

100uF

10V

1210

LTM4630EV

VOUT1

VFB1

SW1

PGOOD1

COMP1

RUN1

TRACK1

VOUTS1

VOUT2

A10

VOUT2

A11

VOUT2

A12

VOUT2

B10

VOUT2

B11

VOUT2

B12

VOUT2

C10

VOUT2

C11

VOUT2

C12

VFB2

SW2

G11

PGOOD2

COMP2

RUN2

TRACK2

VOUTS2

VIN

M10

VIN

M11

VIN

L10

VIN

L11

VIN

K10

VIN

K11

VIN

J10

VIN

J11

GND

D10

GND

D11

GND

D12

GND

E10

GND

E11

GND

E12

GND

F10

GND

F11

GND

F12

GND

G10

GND

G12

GND

H10

GND

H11

GND

H12

GND

M12

GND

L12

GND

J12

GND

K12

GND

SGND

FSET

PHASMD

DIFFP

DIFFN

CLKOUT

MODE-PLLIN

TEMP

INTVCC

EXTVCC

DIFFOUT

R62

0 Ohm

R62

0 Ohm

VO+

R16

60.4K

R16

60.4K

CIN4

22uF

25V

1210

CIN4

22uF

25V

1210

(OPT)

CIN1

150uF

25V

CIN1

150uF

25V

JP1

EXT

INT

CLK

JP1

EXT

INT

CLK

R13

(OPT)

R13

(OPT)

GND

CIN2

1uF

25V

1206

CIN2

1uF

25V

1206

E10

SW2-1

E10

SW2-1

VIN-

CIN3

22uF

25V

1210

CIN3

22uF

25V

1210

R18

30.1K

R18

30.1K

GND

(OPT)

CO10

470uF

CO10

470uF

R17

40.2K

R17

40.2K

(OPT)

0.6 - 1.8V

VOUT

0.6 - 1.8V

VOUT

CO6

470uF

7343

CO6

470uF

7343

E22

SGND

E22

SGND

10K

CO7

100uF

10V

1210

CO7

100uF

10V

1210

R14

121K

R14

121K

CO5

100uF

10V

1210

CO5

100uF

10V

1210

EXT_CLK

CIN5

22uF

25V

1210

CIN5

22uF

25V

1210

JP5

1.0V

JP5

1.0V

R63

0 Ohm

R63

0 Ohm

JP6

1.2V

JP6

1.2V

VO-

CO2

(OPT)

1210

CO2

(OPT)

1210

JP7

1.5V

JP7

1.5V

121K

JP4

0.9V

JP4

0.9V

0.1uF

JP2

OFF

RUN

JP2

OFF

RUN

JP8

1.8V

JP8

1.8V

TRACK

PGOOD

CO3

(OPT)

1210

CO3

(OPT)

1210

0 Ohm

2.2uF

10V

2.2uF

10V

VIN+

(OPT)

R10

(OPT)

R10

(OPT)

R15

90.9K

R15

90.9K

EXTVCC

dc2007a_cf

DEMO MANUAL DC2007A-C

SCHEMATIC DIAGRAM



REMOVE 0 OHM JUMPERS

FOR SEPARATE VOUT2_U2.

COMP_U2

RUN_U2

COMP

TRACK_U2

VFB

PGOOD

RUN

TRACK

PGOOD_U2

DIFFOUT_U2

VFB_U2

PGOOD_U2

VFB_U2

RUN_U2

COMP_U2

TRACK_U2

COMP

CLKOUT_U1

CLKOUT_U2

RUN

TRACK

PGOOD

VFB

VOUT

INTVCC_U2

VOUT2_U2

VIN

EXTVCC

INTVCC_U2

VO2+

VO2-

VO2+ VO2-

INTVCC_U2

VO2+

VOUT2_U2VOUT

VOUT2_U2

SIZE

DATE:

IC NO. REV.

SHEET OF

TITLE:

APPROVALS

PCB DES.

APP ENG.

TECHNOLOGY

Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY

CUSTOMER NOTICE

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SCHEMATIC

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

SCALE = NONE

www.linear.com

DEMO CIRCUIT 2007A

Thursday, August 08, 2013

HIGH EFFICIENCY, POLYPHASE,

N/A

LTM4630EV

MI/RB

Haoran W.

STEP-DOWN POWER MODULE REGULATOR

SIZE

DATE:

IC NO. REV.

SHEET OF

TITLE:

APPROVALS

PCB DES.

APP ENG.

TECHNOLOGY

Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY

CUSTOMER NOTICE

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SCHEMATIC

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

SCALE = NONE

www.linear.com

DEMO CIRCUIT 2007A

Thursday, August 08, 2013

HIGH EFFICIENCY, POLYPHASE,

N/A

LTM4630EV

MI/RB

Haoran W.

STEP-DOWN POWER MODULE REGULATOR

SIZE

DATE:

IC NO. REV.

SHEET OF

TITLE:

APPROVALS

PCB DES.

APP ENG.

TECHNOLOGY

Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY

CUSTOMER NOTICE

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SCHEMATIC

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

SCALE = NONE

www.linear.com

DEMO CIRCUIT 2007A

Thursday, August 08, 2013

HIGH EFFICIENCY, POLYPHASE,

N/A

LTM4630EV

MI/RB

Haoran W.

STEP-DOWN POWER MODULE REGULATOR

R22

0 Ohm

2010

R22

0 Ohm

2010

C11

1uF

10V

C11

1uF

10V

CO14

(OPT)

1210

CO14

(OPT)

1210

C13

(OPT)

C13

(OPT)

CIN9

22uF

25V

1210

CIN9

22uF

25V

1210

R23

0 Ohm

2010

R23

0 Ohm

2010

R27

0 Ohm

R27

0 Ohm

GND

CO12

470uF

7343

CO12

470uF

7343

(OPT)

CO25

470uF

7343

CO25

470uF

7343

R24

0 Ohm

2010

R24

0 Ohm

2010

R21

121K

R21

121K

C15

(OPT)

C15

(OPT)

R31

100K

R31

100K

R20

0 Ohm

R20

0 Ohm

R25

VOUT/

VOUT2_U2

VOUT/

VOUT2_U2

R61

(OPT)

R61

(OPT)

CO38

100uF

10V

1210

CO38

100uF

10V

1210

CO19

470uF

7343

CO19

470uF

7343

R26

0 Ohm

2010

R26

0 Ohm

2010

CO13

(OPT)

1210

CO13

(OPT)

1210

LTM4630EV

VOUT1

VFB1

SW1

PGOOD1

COMP1

RUN1

TRACK1

VOUTS1

VOUT2

A10

VOUT2

A11

VOUT2

A12

VOUT2

B10

VOUT2

B11

VOUT2

B12

VOUT2

C10

VOUT2

C11

VOUT2

C12

VFB2

SW2

G11

PGOOD2

COMP2

RUN2

TRACK2

VOUTS2

VIN

M10

VIN

M11

VIN

L10

VIN

L11

VIN

K10

VIN

K11

VIN

J10

VIN

J11

GND

D10

GND

D11

GND

D12

GND

E10

GND

E11

GND

E12

GND

F10

GND

F11

GND

F12

GND

G10

GND

G12

GND

H10

GND

H11

GND

H12

GND

M12

GND

L12

GND

J12

GND

K12

GND

SGND

FSET

PHASMD

DIFFP

DIFFN

CLKOUT

MODE-PLLIN

TEMP

INTVCC

EXTVCC

DIFFOUT

R19

0 Ohm

R19

0 Ohm

R34

0 Ohm

R34

0 Ohm

CIN10

22uF

25V

1210

CIN10

22uF

25V

1210

R32

0 Ohm

R32

0 Ohm

R33

0 Ohm

R33

0 Ohm

R35

0 Ohm

R35

0 Ohm

C14

(OPT)

C14

(OPT)

E11

SW1-2

E11

SW1-2

R28

0 Ohm

R28

0 Ohm

R38

(OPT)

R38

(OPT)

CO18

100uF

10V

1210

CO18

100uF

10V

1210

CIN8

22uF

25V

1210

CIN8

22uF

25V

1210

CO16

(OPT)

1210

CO16

(OPT)

1210

R37

(OPT)

R37

(OPT)

R36

10K

R36

10K

C10

2.2uF

10V

C10

2.2uF

10V

CO11

100uF

10V

1210

CO11

100uF

10V

1210

R29

CIN7

22uF

25V

1210

CIN7

22uF

25V

1210

CO15

100uF

10V

1210

CO15

100uF

10V

1210

E13

VO2-

E13

VO2-

E12

VO2+

E12

VO2+

C12

(OPT)

C12

(OPT)

R30

(OPT)

R30

(OPT)

E14

SW2-2

E14

SW2-2

CO17

(OPT)

1210

CO17

(OPT)

1210

dc2007a_cf

DEMO MANUAL DC2007A-C

SCHEMATIC DIAGRAM



COMP

RUN

COMP

CLKOUT_U2

CLKOUT_U3

VFB

PGOOD

RUN

VFB

TRACK

PGOOD

TRACK

COMP

CLKOUT_U2

CLKOUT_U3

RUN

VFB

PGOOD

TRACK

VOUT

INTVCC_U3

VOUT

VIN

EXTVCC

INTVCC_U3

SIZE

DATE:

IC NO. REV.

SHEET OF

TITLE:

APPROVALS

PCB DES.

APP ENG.

TECHNOLOGY

Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY

CUSTOMER NOTICE

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SCHEMATIC

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

SCALE = NONE

www.linear.com

DEMO CIRCUIT 2007A

Thursday, August 08, 2013

HIGH EFFICIENCY, POLYPHASE,

N/A

LTM4630EV

MI/RB

Haoran W.

STEP-DOWN POWER MODULE REGULATOR

SIZE

DATE:

IC NO. REV.

SHEET OF

TITLE:

APPROVALS

PCB DES.

APP ENG.

TECHNOLOGY

Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY

CUSTOMER NOTICE

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SCHEMATIC

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

SCALE = NONE

www.linear.com

DEMO CIRCUIT 2007A

Thursday, August 08, 2013

HIGH EFFICIENCY, POLYPHASE,

N/A

LTM4630EV

MI/RB

Haoran W.

STEP-DOWN POWER MODULE REGULATOR

SIZE

DATE:

IC NO. REV.

SHEET OF

TITLE:

APPROVALS

PCB DES.

APP ENG.

TECHNOLOGY

Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY

CUSTOMER NOTICE

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SCHEMATIC

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

SCALE = NONE

www.linear.com

DEMO CIRCUIT 2007A

Thursday, August 08, 2013

HIGH EFFICIENCY, POLYPHASE,

N/A

LTM4630EV

MI/RB

Haoran W.

STEP-DOWN POWER MODULE REGULATOR

C17

(OPT)

C17

(OPT)

CO23

470uF

7343

CO23

470uF

7343

R39

121K

R39

121K

1% CO20

100uF

10V

1210

CO20

100uF

10V

1210

CO29

470uF

7343

CO29

470uF

7343

CO28

(OPT)

1210

CO28

(OPT)

1210

C16

(OPT)

C16

(OPT)

R40

0 Ohm

R40

0 Ohm

CIN11

1uF

25V

1206

CIN11

1uF

25V

1206

E16

SW2-3

E16

SW2-3

CIN15

22uF

25V

1210

CIN15

22uF

25V

1210

LTM4630EV

VOUT1

VFB1

SW1

PGOOD1

COMP1

RUN1

TRACK1

VOUTS1

VOUT2

A10

VOUT2

A11

VOUT2

A12

VOUT2

B10

VOUT2

B11

VOUT2

B12

VOUT2

C10

VOUT2

C11

VOUT2

C12

VFB2

SW2

G11

PGOOD2

COMP2

RUN2

TRACK2

VOUTS2

VIN

M10

VIN

M11

VIN

L10

VIN

L11

VIN

K10

VIN

K11

VIN

J10

VIN

J11

GND

D10

GND

D11

GND

D12

GND

E10

GND

E11

GND

E12

GND

F10

GND

F11

GND

F12

GND

G10

GND

G12

GND

H10

GND

H11

GND

H12

GND

M12

GND

L12

GND

J12

GND

K12

GND

SGND

FSET

PHASMD

DIFFP

DIFFN

CLKOUT

MODE-PLLIN

TEMP

INTVCC

EXTVCC

DIFFOUT

CO21

(OPT)

1210

CO21

(OPT)

1210

R44

(OPT)

R44

(OPT)

R41

10K

R41

10K

CIN13

22uF

25V

1210

CIN13

22uF

25V

1210

R43

100K

R43

100K

R42

(OPT)

R42

(OPT)

CO27

(OPT)

1210

CO27

(OPT)

1210

CO26

100uF

10V

1210

CO26

100uF

10V

1210

E15

SW1-3

E15

SW1-3

C19

1uF

10V

C19

1uF

10V

C18

2.2uF

10V

C18

2.2uF

10V

CO22

(OPT)

1210

CO22

(OPT)

1210

CIN14

22uF

25V

1210

CIN14

22uF

25V

1210

CO24

100uF

10V

1210

CO24

100uF

10V

1210

CIN12

22uF

25V

1210

CIN12

22uF

25V

1210

dc2007a_cf

DEMO MANUAL DC2007A-C

Information furnished by Linear Technology Corporation is believed to be accurate and reliable.

However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-

tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.

SCHEMATIC DIAGRAM



LOAD TRANSIENT CIRCUIT

CLKOUT_U4

COMP

RUN

COMP

TRACK

VFB

PGOOD

RUN

VFB

TRACK

PGOOD

CLKOUT_U3

VFB

COMP

CLKOUT_U3

RUN

TRACK

PGOOD

INTVCC_U4

VOUT

VOUTVIN

EXTVCC

INTVCC_U4

VOUT

VO+

VO-

SIZE

DATE:

IC NO. REV.

SHEET OF

TITLE:

APPROVALS

PCB DES.

APP ENG.

TECHNOLOGY

Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY

CUSTOMER NOTICE

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SCHEMATIC

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

SCALE = NONE

www.linear.com

DEMO CIRCUIT 2007A

Thursday, August 08, 2013

HIGH EFFICIENCY, POLYPHASE,

N/A

LTM4630EV

MI/RB

Haoran W.

STEP-DOWN POWER MODULE REGULATOR

SIZE

DATE:

IC NO. REV.

SHEET OF

TITLE:

APPROVALS

PCB DES.

APP ENG.

TECHNOLOGY

Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY

CUSTOMER NOTICE

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SCHEMATIC

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

SCALE = NONE

www.linear.com

DEMO CIRCUIT 2007A

Thursday, August 08, 2013

HIGH EFFICIENCY, POLYPHASE,

N/A

LTM4630EV

MI/RB

Haoran W.

STEP-DOWN POWER MODULE REGULATOR

SIZE

DATE:

IC NO. REV.

SHEET OF

TITLE:

APPROVALS

PCB DES.

APP ENG.

TECHNOLOGY

Fax: (408)434-0507

Milpitas, CA 95035

Phone: (408)432-1900

1630 McCarthy Blvd.

LTC CONFIDENTIAL - FOR CUSTOMER USE ONLY

CUSTOMER NOTICE

LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A

CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;

HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO

VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL

APPLICATION. COMPONENT SUBSTITUTION AND PRINTED

CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT

PERFORMANCE OR RELIABILITY. CONTACT LINEAR

TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.

THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND

SCHEMATIC

SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.

SCALE = NONE

www.linear.com

DEMO CIRCUIT 2007A

Thursday, August 08, 2013

HIGH EFFICIENCY, POLYPHASE,

N/A

LTM4630EV

MI/RB

Haoran W.

STEP-DOWN POWER MODULE REGULATOR

R53

(OPT)

R53

(OPT)

R49

(OPT)

R49

(OPT)

VOUT

C22

2.2uF

10V

C22

2.2uF

10V

R51

100K

R51

100K

CO30

100uF

10V

1210

CO30

100uF

10V

1210

C27

1uF

10V

C27

1uF

10V

C26

(OPT)

C26

(OPT)

R47

121K

R47

121K

CO36

(OPT)

1210

CO36

(OPT)

1210

R48

(OPT)

R48

(OPT)

SUD50N04-8M8P-4GE

R58

(OPT)

2512

R58

(OPT)

2512

CIN19

22uF

25V

1210

CIN19

22uF

25V

1210

R52

(OPT)

R52

(OPT)

C23

1uF

10V

C23

1uF

10V

C21

(OPT)

C21

(OPT)

SUD50N04-8M8P-4GE

R45

0 Ohm

R45

0 Ohm

R57

0.010

2512

R57

0.010

2512

R50

(OPT)

R50

(OPT)

CO34

100uF

10V

1210

CO34

100uF

10V

1210

R46

0 Ohm

R46

0 Ohm

CO33

(OPT)

1210

CO33

(OPT)

1210

CIN16

22uF

25V

1210

CIN16

22uF

25V

1210

E18

SW2-4

E18

SW2-4

C30

(OPT)

C30

(OPT)

R55

(OPT)

R55

(OPT)

CO32

(OPT)

1210

CO32

(OPT)

1210

R59

(OPT)

2512

R59

(OPT)

2512

R54

10K

R54

10K

CIN18

22uF

25V

1210

CIN18

22uF

25V

1210

C29

(OPT)

C29

(OPT)

CO35

(OPT)

1210

CO35

(OPT)

1210

E17

SW1-4

E17

SW1-4

IOSTEP

C24

0.01uF

C24

0.01uF

CO37

470uF

7343

CO37

470uF

7343

C28

1uF

10V

C28

1uF

10V

CIN17

22uF

25V

1210

CIN17

22uF

25V

1210

E19

IOSTEP CLK

E19

IOSTEP CLK

LTM4630EV

VOUT1

VFB1

SW1

PGOOD1

COMP1

RUN1

TRACK1

VOUTS1

VOUT2

A10

VOUT2

A11

VOUT2

A12

VOUT2

B10

VOUT2

B11

VOUT2

B12

VOUT2

C10

VOUT2

C11

VOUT2

C12

VFB2

SW2

G11

PGOOD2

COMP2

RUN2

TRACK2

VOUTS2

VIN

M10

VIN

M11

VIN

L10

VIN

L11

VIN

K10

VIN

K11

VIN

J10

VIN

J11

GND

D10

GND

D11

GND

D12

GND

E10

GND

E11

GND

E12

GND

F10

GND

F11

GND

F12

GND

G10

GND

G12

GND

H10

GND

H11

GND

H12

GND

M12

GND

L12

GND

J12

GND

K12

GND

SGND

FSET

PHASMD

DIFFP

DIFFN

CLKOUT

MODE-PLLIN

TEMP

INTVCC

EXTVCC

DIFFOUT

R56

0.010

2512

R56

0.010

2512

C20

(OPT)

C20

(OPT)

E20

GND

E20

GND

CO31

470uF

7343

CO31

470uF

7343

C25

0.1uF

C25

0.1uF

dc2007a_cf

DEMO MANUAL DC2007A-C

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

(408) 432-1900 ●FAX: (408) 434-0507 ●www.linear.com

 LINEAR TECHNOLOGY CORPORATION 2013

LT 1113 • PRINTED IN USA

DEMONSTRATION BOARD IMPORTANT NOTICE

Linear Technology Corporation (LT C ) provides the enclosed product(s) under the following AS IS conditions:

This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEVELOPMENT

OR EVALUATION PURPOSES ONLY and is not provided by LT C for commercial use. As such, the DEMO BOARD herein may not be complete

in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including but not limited to product safety

measures typically found in finished commercial goods. As a prototype, this product does not fall within the scope of the European Union

directive on electromagnetic compatibility and therefore may or may not meet the technical requirements of the directive, or other regulations.

If this evaluation kit does not meet the specifications recited in the DEMO BOARD manual the kit may be returned within 30 days from the date

of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY THE SELLER TO BUYER AND IS IN LIEU

OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS

FOR ANY PARTICULAR PURPOSE. EXCEPT TO THE EXTENT OF THIS INDEMNITY, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR

ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.

The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user releases LT C from all claims

arising from the handling or use of the goods. Due to the open construction of the product, it is the user’s responsibility to take any and all

appropriate precautions with regard to electrostatic discharge. Also be aware that the products herein may not be regulatory compliant or

agency certified (FCC, UL, CE, etc.).

No License is granted under any patent right or other intellectual property whatsoever. LT C assumes no liability for applications assistance,

customer product design, software performance, or infringement of patents or any other intellectual property rights of any kind.

LT C currently services a variety of customers for products around the world, and therefore this transaction is not exclusive.

Please read the DEMO BOARD manual prior to handling the product. Persons handling this product must have electronics training and

observe good laboratory practice standards. Common sense is encouraged.

This notice contains important safety information about temperatures and voltages. For further safety concerns, please contact a LT C applica-

tion engineer.

Mailing Address:

Linear Technology

1630 McCarthy Blvd.

Milpitas, CA 95035

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