Analog Devices DC1198B-A Quick setup guide

dc1198bafa

DEMO MANUAL DC1198B-A

Description

LTM4605

20V, 5A High Efficiency

Buck-Boost µModule Regulator

Demonstration circuit DC1198B-A features the

LT M

4605EV, the high efficiency, high density switch

modebuck-boostµModule

regulator. The LTM4605EV can

regulate its output voltage from an input voltage above,

below, or equal to the output. The input voltage range

of DC1198B-A is from 4.5V to 20V with a preset output

voltage of 12V. The rated load current is 5A, although

derating is necessary for certain VIN, VOUT, and thermal

conditions. The switching frequency may be synchronized

to an external clock from 200kHz to 400kHz. This PLL

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

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

perForMAnce sUMMArY

BoArD photo

can be used not only to reduce undesirable frequency

harmonics but also to parallel LTM4605 to provide high

output current. The LTM4605 data sheet must be read in

conjunction with this demo manual prior to working on

or modifying DC1198B-A.

Design files for this circuit board are available at

http://www.linear.com/demo

(TA= 25°C)

PARAMETER CONDITIONS VALUE

Input Voltage Range VIN 4.5V to 20V

Output Voltage VOUT VIN = 12V, IOUT = 5A. 12V ± 2%

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

Thermal Conditions

5ADC at 5VIN

12ADC at VIN > VOUT

Default Operating Frequency 300kHz

Efficiency VIN = 12V, VOUT = 12V, IOUT = 5A 97.6%, See Figure 3 for More Information

Load Transient VIN = 5V, VOUT = 12V See Figure 4 for Details

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dc1198bafa

DEMO MANUAL DC1198B-A

qUick stArt proceDUre

Figure 1. Test Setup of DC1198B-A

Demonstration circuit DC1198B-A isaneasywayto evaluate

the performance of the LTM4605EV. Please refer to Figure

1 for proper measurement equipment set-up and follow

the procedure below:

1. Place jumpers in the following positions for a typical

12VOUT application:

RUN CLOCK MODE START

ON PROG CCM SSO

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

and meters as shown in Figure 1. Preset the load to 0A

and VIN supply to be less than 20V.

3. Turn on the power at the input. The output voltage

should be 12V ± 2%.

4. Once the proper output voltage is established, adjust

the load within the operating range and observe the

output voltage regulation, ripple voltage, efficiency and

other parameters. Cooling fan andlower current sensing

resistor are necessary for VIN < 5V and IOUT = 5A.

5. To measure input and output ripple, please refer to

Figure 2 for proper setup.

6. The voltage of pin PLLFLTR determines the switching

frequency. Modify R6 and R7 to adjust the switching

frequency. Turn off the power supply before attempting

to remove and replace R6 and R7. Do not allow voltage

at pin PLLFLTR exceed 2.4V.

7. The Inductor, RS1 and RS2 should be modified to ac-

commodate certain input and output condition. Please

refer to the LTM4605 data sheet for recommended

component values.

DC1198B F01

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dc1198bafa

DEMO MANUAL DC1198B-A

qUick stArt proceDUre

Figure 2. Proper Scope Probe Placement for Measuring Input or Output Ripple

Figure 3. Measured Supply Efficiency with Different VIN. (VOUT = 12V)

Figure 4. Measured Load Transient Response (2.5A Step, 25% to 75%)

LOAD CURRENT (A)

EFFICIENCY (%)

100

6 8 10

DC1198B F03

60 2 4 12

VIN = 5V

VIN = 12V

VIN = 20V

DC1198B F02

INPUT OR OUTPUT CAPACITOR

VIN = 5V, VOUT = 12V

CONTINUOUS CURRENT MODE (CCM)

1.25A TO 3.75A LOAD STEP

COUT = 2x22µF CERAMIC (1812, X7R), 2x180µF OSCON (16V)

PEAK-TO-PEAK OUTPUT VOLTAGE DEVIATION = 413mV

200µs/DIV

VOUT

AC-COUPLED

100mV/DIV

ISTEP

2A/DIV

DC1198B F04

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dc1198bafa

DEMO MANUAL DC1198B-A

pArts list

ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER

Required Circuit Components

1 1 CIN1 CAP, ALUM, 150µF, 20%, 35V SANYO, 35ME150WXV+TS (NOW SUNCON 35ME150WXV)

2 2 CIN2, CIN3 CAP, X7R, 10µF, 20%, 35V, 1206 TAIYO YUDEN, GMK316BJ106ML-T

3 1 CSS CAP, X7R, 0.01µF, 25V, 10%, 0603 AVX 06033C103KAT4A

4 2 CO3, CO4 CAP, X7R, 22µF, 16V, 20%, 1812 TDK C4532X7R1C226M

5 2 CO5, CO6 CAP, OS-CON, 180µF, 16V SANYO 16SVP180MX

6 1 L1 IND IRON POWER SMT FIXED, 3.3µH TOKO FD1254-3R3M=P3

7 1 R5 RES, CHIP, 7.15k, 1/16W, 1%, 0603 VISHAY CRCW06037K15FKEA

8 1 R6 RES, CHIP, 4.64k, 1/16W, 1%, 0603 VISHAY CRCW06034K64FKEA

9 1 R7 RES, CHIP, 1.21k, 1/16W, 1%, 0603 VISHAY CRCW06031K21FKEA

10 2 RS1, RS2 RES, CHIP, 0.015 1/2W, 1%, 1206 VISHAY WSL1206R0150FEA

11 1U1 I.C., LTM4605EV#PBF LINEAR TECHNOLOGY CORPORATION LTM4605EV#PBF

Additional Demo Board Circuit Components

1 0 CIN4, CIN5 (OPT) CAP, 1206

2 0 C2, C4, C5, CP, CFF

(OPT)

C A P, 0 6 0 3

3 0 CO1, CO2 (OPT) CAP, SVP, 100µF, D3L

4 0 CO7 (OPT) CAP, 1206, 16V

5 0 CO8 (OPT) POSCAP, D3L

6 2 D1, D2 ZENER DIODE, 4.7V CENTRAL SEMICONDUCTOR CMDZ5230B-7-F

7 1 R1 RES, CHIP, 100k, 1/16W, 5%, 0603 VISHAY CRCW0603100KJNEA

8 1 R2 RES, CHIP, 51k, 1/16W, 5%, 0603 VISHAY CRCW060351K0JNEA

9 1 R8 RES, CHIP, 20k, 1/16W, 1%, 0603 VISHAY CRCW060320K0FKEA

10 1RS3 (OPT) RES,1206

11 1 R9, RUVLO (OPT) RES, 0603

Hardware/Components (For Demo Board Only)

1 2 JP1, JP2 2mm SINGLE ROW HEADER, 3 PIN SAMTEC TMM-103-02-L-S

2 2 JP3, JP4 2mm SINGLE ROW HEADER, 4 PIN SAMTEC TMM-104-02-L-S

3 4 JP1, JP2, JP3, JP4 SHUNT SAMTEC 2SN-BK-G

410 TP1, TP4, TP5, TP7,

TP9, TP11 TO TP15

TESTPOINT, TURRET, 0.095” MILL-MAX 2501-2-00-80-00-00-07-0

5 4 TP2, TP3, TP8, TP10 BANANA JACK KEYSTONE 575-4

6 4 STAND OFF STAND OFF, NYLON 0.50” TALL KEYSTONE 8833 (SNAP ON)

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dc1198bafa

DEMO MANUAL DC1198B-A

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

A A

5A MAX

RUN

OFF

DCM

CCM

BS (BURST/SKIP_CYCLE) OFF

SSO (SOFT START ON)

LO (LDO ON)

EXT

PROG

CLOCK

12V

MODE

Degrading Necessary for Certain Input

and Output Voltages.

START

DCM

SOFT

START ON

LDO ON

OFF

MODE

OFF

SSO

BURST/

START

CCM CCM

DCM

SKIP_CYCLE

VERSION

4.7uH

3.3uH- A

L Cin1 Cin2, Cin3

35V, 150uF 10uF, 35V, 1206, X7R

4.7uF, 50V, 1206, X5R

ASSY TABLES

50V, 100uF

LTM4605EV

LTM4607EV

** **

- B

VIN

4.5V - 20V

6V - 36V

HIGH DENSITY BUCK-BOOST POWER µMODULE R

VSS

VIN

INTVCC

VOUT

VIN

INTVCC

VIN

INTVCC

SIZE

DATE:

.VER.ONCI

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

Thursday, January 24, 2013

1 1

SAM Y.

N/A

LTM4605EV / LTM4607EV

DEMO CIRCUIT 1198B-A/B

SIZE

DATE:

.VER.ONCI

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

Thursday, January 24, 2013

1 1

SAM Y.

N/A

LTM4605EV / LTM4607EV

DEMO CIRCUIT 1198B-A/B

SIZE

DATE:

.VER.ONCI

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

Thursday, January 24, 2013

1 1

SAM Y.

N/A

LTM4605EV / LTM4607EV

DEMO CIRCUIT 1198B-A/B

REVISION HISTORY

DESCRIPTION DATEAPPROVEDECO REV

SAM Y.PRODUCTION 21-82-91

REVISION HISTORY

DESCRIPTION DATEAPPROVEDECO REV

SAM Y.PRODUCTION 21-82-91

REVISION HISTORY

DESCRIPTION DATEAPPROVEDECO REV

SAM Y.PRODUCTION 21-82-91

TP15

INTVCC TP15

INTVCC

(OPT)

TP11 VO-

RS3

(OPT)

RS3

(OPT)

TP3

VIN- TP3

VIN- R9

(OPT)

JP1JP1

Cin2

10uF

Cin2

10uF

(OPT)

Cin4

(OPT)

Cin4

(OPT)

L1L1

RS1

0.015

RS1

0.015

U1U1

VIN

L12

VIN

K11

VIN

J10

VIN

M10

VIN

L11 VIN

L10 VIN

K12

VIN

J11

VIN

J12

VIN

K10

GND

C11

GND

C10

GND

VOUT G2

VOUT G3

VOUT G4

VOUT H1

VOUT H2

VOUT H3

VOUT H4

COMP

EXTVCC

RSENSE G5

GND

C12GND

D1 GND

D2 GND

D3 GND

GND

D10

VFB B6

SW1 J1

SW2 J8

VOUT G1

VOUT E2

VOUT E1

VIN

M11

VIN

M12

INTVCC

PGOOD

RUN

PLLFLTR

PLLIN

FCB

STNDBY

A10

SGND

GND

D11GND

D12GND

E3 GND

E4 GND

E5 GND

E6 GND

E7 GND

E8 GND

E9 GND

E10 GND

E11 GND

E12

GND

A11 GND

A12

GND

B10 GND

B11 GND

B12

SENSE+ A4

SENSE- A5

RSENSE G6

RSENSE G7

RSENSE G8

RSENSE G9

RSENSE G10

RSENSE G11

RSENSE G12

RSENSE H5

RSENSE H6

RSENSE H7

RSENSE H8

RSENSE H9

RSENSE H10

RSENSE H11

RSENSE H12

RSENSE J5

RSENSE J6

RSENSE J7

RSENSE K5

RSENSE K6

RSENSE L5

RSENSE L6

RSENSE M5

RSENSE M6

RSENSE F10

RSENSE F11

RSENSE F12

VOUT F1

VOUT F2

VOUT F3

VOUT F4

SW1 J2

SW1 J3

SW1 J4

SW1 K1

SW1 K2

SW1 K3

SW1 K4

SW1 L1

SW1 L2

SW1 L3

SW1 L4

SW1 M1

SW1 M2

SW1 M3

SW1 M4

SW2 J9

SW2 K7

SW2 K8

SW2 K9

SW2 L7

SW2 L8

SW2 L9

SW2 M7

SW2 M8

SW2 M9

NC F8

NC F9

NC F7

RUVLO

(OPT)

RUVLO

(OPT)

Cin1

RS2

0.015

RS2

0.015

CFF

(OPT)

CFF

(OPT)

1.21K

TP7 VO+

CO5

180uF

16V

CO5

180uF

16V

51K

TP9

EXTVCC TP9

EXTVCC

JP4JP4

Cin5

(OPT)

Cin5

(OPT)

TP1

VIN TP1

VIN

CO3

22uF

25V

CO3

22uF

25V

CMDZ5230B

2 1

TP13

SGND TP13

SGND

CO7

(OPT)

16V

CO7

(OPT)

16V

7.15K

TP2

VIN+ TP2

VIN+

TP5

PGOOD TP5

PGOOD

TP4

GND TP4

GND

TP12

SOFT START TP12

SOFT START

CO4

22uF

25V

CO4

22uF

25V

CO8

(OPT)

CO8

(OPT)

JP3JP3

TP14

EXT. CLOCK TP14

EXT. CLOCK

Cin3

10uF

Cin3

10uF

CSS 10nF

JP2JP2

TP10

GND

TP10

GND

CO2

(OPT)

CO2

(OPT)

C2 (OPT)C2 (OPT)

TP8 VOUT

R8 20KR8 20K

C4 (OPT)

10V

C4 (OPT)

10V

100K

CO1

(OPT)

CO1

(OPT)

R6 4.64KR6 4.64K

CO6

180uF

16V

CO6

180uF

16V

CMDZ5230B

2 1

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dc1198bafa

DEMO MANUAL DC1198B-A

Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

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

 LINEAR TECHNOLOGY CORPORATION 2011

LT 0213 REV A • PRINTED IN USA

DEMONSTRATION BOARD IMPORTANT NOTICE

Linear Technology Corporation (LTC) 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 LTC 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 LTC 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. LTC assumes no liability for applications assistance,

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

LTC 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 LTC applica-

tion engineer.

Mailing Address:

Linear Technology

1630 McCarthy Blvd.

Milpitas, CA 95035

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