Linear Technology LTM4676EY User manual

dc1989abf

DEMO MANUAL DC1989A-B

Description

LTM4676EY

Dual 13A or Single 26A µModule Regulator

with Digital Power System Management

Demonstration circuit 1989A-B is a high efficiency, high

density, µModule regulator with 4.5V to 16V input range.

The output voltage is adjustable from 0.5V to 4V, and it can

supply 75A maximum load current. The demo board has

three LT M

4676 µModule regulators, and the LTM4676 is

a dual 13A or single 26A step-down regulator with PMBus

power system management. Please see LTM4676 data

sheet for more detailed information

DC1989A-B powers up to default settings and produces

power based on configuration resistors without the need

for any serial bus communication. This allows easy evalu-

ation of the DC/DC converter. To fully explore the extensive

power system management features of the part, download

the GUI software LTpowerPlay™ onto your PC and use

LT C ’s I2C/SMBus/PMBus dongle DC1613A to connect to

L, LT, LTC, LTM, Linear Technology, the Linear logo, Dust Networks and Dust are registered

trademarks and LTpowerPlay is a trademark of Linear Technology Corporation. All other

trademarks are the property of their respective owners.

the board. LTpowerPlay allows the user to reconfigure the

part on the fly and store the configuration in EEPROM, view

telemetry of voltage, current, temperature and fault status

GUI Download

The software can be downloaded from:

http://www.linear.com/ltpowerplay

For more details and instructions of LTpowerPlay, please

refer to LTpowerPlay GUI for LTM4676 Quick Start Guide.

Design files for this circuit board are available at

http://www.linear.com/demo/DC1989A-B

Figure 1. LTM4676/DC1989A-B Demo Circuit

This datasheet has been downloaded fromhttp://www.digchip.com at this page

dc1989abf

DEMO MANUAL DC1989A-B

Quick start proceDure

Demonstration circuit 1989A-B is easy to set up to evalu-

ate the performance of the LTM4676EY. Refer to Figure 2

for the proper measurement equipment setup and follow

the procedure below.

1. With power off, connect the input power supply to VIN

(4.5V to 16V) and GND (input return).

2. Connect the 1V output load between VOUT0 and GND

(Initial load: no load).

3. Connect the DVMs to the input and outputs. Set default

switch position: SW1: ON; SW2: ON.

4. Turn on the input power supply and check for the proper

output voltages. VOUT0 should be 1V ±1%.

5. Once the proper output voltages are established, ad-

just the loads within the operating range and observe

the output voltage regulation, ripple voltage and other

parameters.

6. Connect the dongle and control the output voltages

from the GUI. See “LTpowerPlay GUI for the LTM4676

Quick Start Guide” for details.

Note: When measuring the output or input voltage ripple,

do not use the long ground lead on the oscilloscope probe.

See Figure 3 for the proper scope probe technique. Short,

stiff leads need to be soldered to the (+) and (–) terminals

of an output capacitor. The probe’s ground ring needs to

touch the (–) lead and the probe tip needs to touch the

(+) lead.

Connecting a PC to DC1989A-B

You can use a PC to reconfigure the power management

features of the LTM4676 such as: nominal VOUT, margin

setpoints,OV/UVlimits,temperaturefaultlimits,sequenc-

ing parameters, the fault log, fault responses, GPIOs and

other functionality. The DC1613A dongle may be plugged

when VIN is present.

performance summary

Specifications are at TA= 25°C

PARAMETER CONDITION VALUE

Input Voltage Range 4.5V to 16V

Output Voltage, VOUT0 VIN = 4.5 to 16V, IOUT0 = 0A to 75A 0.5V to 4V, Default: 1V

Maximum Output Current, IOUT0 VIN = 4.5 to 16V, VOUT = 0.5V to 4V 75A

Typical Efficiency VIN = 12V, VOUT = 1V, IOUT = 75A 80%

Default Switching Frequency 350kHz

Table 1. LTM4676 Demo Cards for Up to 130A Point-of-Load Regulation

MAXIMUM OUTPUT CURRENT NUMBER OF OUTPUT VOLTAGES

NUMBER OF LTM4676 µMODULE

REGULATORS ON THE BOARD DEMO BOARD NUMBER

13A, 13A 2 1 DC1811A

26A 1 1 DC2087A

50A 1 2 DC1989A-B

75A 1 3 DC1989A-B

100A 1 4 DC1989A-C

100A 1 1 (+ 3x LTM4620A) DC2106A-A

130A 1 1 (+ 3x LTM4630) DC2106A-B

dc1989abf

DEMO MANUAL DC1989A-B

Quick start proceDure

Figure 2. Proper Measurement Equipment Setup

Figure 3. Measuring Output Voltage Ripple

dc1989abf

DEMO MANUAL DC1989A-B

Quick start proceDure

Figure 4. Demo Setup with PC

Figure 5. Efficiency vs Load Current at VIN = 5V and VIN = 12V

Efficiency vs Load Current

100

LOAD CURRENT (A)

EFFICIENCY (%)

5 15 45 55 653525

VIN = 5V

VIN = 12V

VOUT0 = 1V

dc1989abf

DEMO MANUAL DC1989A-B

Quick start proceDure

Figure 8. Thermal Performance at VIN = 12V, VOUT0 = 1V, IOUT0 = 75A, TA= 23.8°C, Air Flow 200LFM

VOUT0 (20MHz BW) [50mV/DIV]

37.5A TO 75A LOAD STEP

VOUT0 (20MHz BW) [10mV/DIV]

Figure 6. Output Voltage VOUT0 vs Load Current

(VOUT0 RANGE = 0)

Figure 9. Current Sharing at VIN = 12V, VOUT0 = 1V

(Based on the Current Readback)

Figure 7. Output Voltage Ripple at VIN = 12V,

VOUT0 = 1V, IOUT0 = 75A

Figure 10. Total Current Readback vs Load

Current at VIN = 12V, VOUT0 = 1V

0 10 20 30

50405 15 25 45 60 65 705535

LOAD CURRENT (A)

PHASE CURRENT (A)

–2

IOUT_PHASE#1

IOUT_PHASE#2

IOUT_PHASE#3

IOUT_PHASE#4

IOUT_PHASE#5

IOUT_PHASE#6

LOAD CURRENT (A)

TOTAL CURRENT READBACK (A)

010 20 30

50405 15 25 45 60 65 705535

dc1989abf

DEMO MANUAL DC1989A-B

Quick start proceDure

LTpowerPlay Software GUI

LTpowerPlay is a powerful Windows based development

environment that supports Linear Technology power sys-

tem management ICs, including the LTM4676, LTC3880,

LTC3883, LTC2974 and LTC2978. The software supports

a variety of different tasks. You can use LTpowerPlay to

evaluate Linear Technology ICs by connecting to a demo

board system. LTpowerPlay can also be used in an offline

mode (with no hardware present) in order to build a mul-

tichip configuration file that can be saved and reloaded at a

latertime.LTpowerPlayprovidesunprecedented diagnostic

and debug features. It becomes a valuable diagnostic tool

during board bring-up to program or tweak the power

management scheme in a system, or to diagnose power

issues when bringing up rails. LTpowerPlay utilizes the

DC1613A USB-to-SMBus controller to communicate with

one of many potential targets, including the LTM4676, the

LTC3880 and the LTC3883’s demo system, or a customer

board. The software also provides an automatic update

feature to keep the software current with the latest set

of device drivers and documentation. The LTpowerPlay

software can be downloaded from:

http://linear.com/ltpowerplay

To access technical support documents for LT C Digital

Power Products visit Help. View online help on the

LTpowerPlay menu.

LTpowerPlay QUICK START PROCEDURE

Thefollowing procedure describeshow to use LTpowerPlay

to monitor and change the settings of LTM4676.

1. Download and install the LTPowerPlay GUI:

http://linear.com/ltpowerplay

Figure 11. LTpowerPlay Main Interface

dc1989abf

DEMO MANUAL DC1989A-B

Quick start proceDure

2. Launch the LTpowerPlay GUI.

a. The GUI should automatically identify the DC1989A-B.

The system tree on the left hand side should look like

this:

b. A green message box shows for a few seconds in the

lower left hand corner, confirming that LTM4676 is

communicating:

c. In the Toolbar, click the “R” (RAM to PC) icon to read the

RAM from the LTM4676. This reads the configuration

from the RAM of LTM4676 and loads it into the GUI.

d. If you want to change the output voltage to a different

value, like 1.5V. In the Config tab, type in 1.5 in the

VOUT_COMMAND box, like this:

Then, click the “W” (PC to RAM) icon to write these

you will see the output voltage will change to 1.5V.

If the write is successful, you will see the following

message:

e. You can save the changes into the NVM. In the tool bar,

click “RAM to NVM” button, as following

f. Save the demo board configuration to a (*.proj) file. Click

the Save icon and save the file. Name it whatever you want.

dc1989abf

DEMO MANUAL DC1989A-B

parts List

ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER

Required Circuit Components

1 14 CIN1, CIN2, CIN4-CIN15 CAP., X5R, 10µF, 35V, 10%, 1210 AVX, 1210DD106KAT2A

2 1 CIN3 CAP., 150µF, 35V, ALUMINUM ELECTR., SUN ELECT., 35CE150AX

3 10 COUT1, COUT6, COUT7, COUT9, COUT12, COUT17,

COUT18, COUT20, COUT23, COUT27

CAP., X5R, 100µF, 6.3V, 20% 1210 AVX, 12106D107KAT2A

4 1 C3 CAP., X5R, 220pF, 16V, 10%, 0603 AVX, 0603YD221KAT2A

5 8 COUT4, COUT5, COUT8, COUT15, COUT16,

COUT19, COUT26, COUT28

CAP., 330µF, 6.3V, POSCAP, D3L SANYO, 6TPF330M9L

6 1 C7 CAP., X7R, 470pF, 16V, 10%, 0603 AVX, 0603YC471KAT2A

7 1 C4 CAP., X7R, 3.3nF, 16V, 10%, 0603 (3300pF) AVX, 0603YC332KAT2A

8 2 C5, C12 CAP., X5R, 10nF, 16V, 10%, 0603 (0.01µF) AVX, 0603YD103KAT2A

9 1 C21 CAP., X5R, 100nF, 16V, 10%, 0603 (0.1µF) AVX, 0603YD104KAT2A

10 1 C70 CAP., X5R, 1µF, 25V, 10%, 0805 AVX, 08053D105KAT2A

11 2 C65, C68 CAP., X5R, 1µF, 25V, 10%, 1206 AVX, 12063D105KAT2A

12 1 C67 CAP., X7R, 0.1µF, 25V, 10%, 1206 AVX, 12063C104KAT2A

13 1 C64 CAP., X5R, 4.7µF, 25V, 10%, 0603 MURATA, GRM188R61E475KE11

14 1 C66 CAP., X5R, 0.22µF, 25V, 10%, 0805 AVX, 08053D224KAT2A

15 1 C69 CAP., X7R, 150pF, 25V, 10%, 0603 AVX, 06033C151KAT2A

16 2 D1, D2 LED GREEN S-GW TYPE SMD PANASONIC LN1371SGTRP

17 1 D3 LED RED S-TYPE GULL WING SMD PANASONIC LN1271RTR

18 1 J7 CONN HEADER 12POS 2MM STR DL PCB FCI 98414-G06-12ULF

19 1 J8 PIN HEADER 20 DUAL ROW RA (M) Mill Max 802-40-020-20-0001

20 1 J9 CONN SOCKET 20 DUAL ROW RA (F) Mill Max 803-43-020-20-001

21 2 J10, J11 CONN, BNC, 5 PINS CONNEX, 112404

22 1 Q1 MOSFET P-CH 20V 0.58A SOT-23 VISHAY TP0101K-T1-E3

23 2 Q2, Q3 MOSFET N-CH 60V 115mA SOT-23 FAIRCHILD 2N7002K

24 2 Q11, Q12 N-CHANNEL 30-V MOSFET, TO-252 VISHAY, SUD50N03-09P-E3

25 1 R20 RES., CHIP, 22.6k, 1%, 0603 VISHAY CRCW060322K6FKEA

26 25 R2, R4, R18, R25, R26, R120-R122, R30, R32, R47,

R48, R50, R56, R58, R60, R72, R74, R85, R86,

R89, R90, R92, R104, R119

RES., CHIP, 0Ω, 1%, 0603 VISHAY CRCW06030000Z0EA

27 4 R49, R51, R53, R54 RES., CHIP, 0Ω, 1%, 2010 VISHAY CRCW20100000Z0EA

28 16 R6, R7, R8, R9, R10, R11, R12, R15, R35, R36,

R39, R64, R78, R97, R98, R116

RES., CHIP, 10k, 1%, 0603 VISHAY CRCW060310K0FKEA

29 1 R27 RES., CHIP, 51k, 1%, 0603 VISHAY CRCW060351K0FKEA

30 1 R14 RES., CHIP, 2k, 1%, 0603 VISHAY CRCW06032K0FKEA

31 2 R16, R41 RES., CHIP, 10Ω, 1%, 0603 VISHAY CRCW060310R0FKEA

32 1 R112 RES., CHIP, 100Ω, 1%, 0603 VISHAY CRCW0603100RFKEA

33 1 R113 RES., CHIP, 1.4k, 1%, 0603 VISHAY CRCW06031K40FKEA

34 1 R19 RES., CHIP, 787Ω, 1%, 0603 VISHAY CRCW0603787RFKEA

35 1 R40 RES., CHIP, 1.65k, 1%, 0603 VISHAY CRCW06031K65FKEA

36 1 R42 RES., CHIP, 3.24k, 1%, 0603 VISHAY CRCW06033K24FKEA

37 1 R65 RES., CHIP, 2.43k, 1%, 0603 VISHAY CRCW06032K43FKEA

38 1 R66 RES., CHIP, 2.43k, 1%, 0603 VISHAY CRCW06032K43FKEA

dc1989abf

DEMO MANUAL DC1989A-B

ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER

39 2 R95, R96 RES., CHIP, 4.99k, 1%, 0603 VISHAY CRCW06034K99FKEA

40 2 R99, R100 RES., CHIP, 200Ω, 1%, 0603 VISHAY CRCW0603200RFKEA

41 1 R101 RES., CHIP, 127Ω, 1%, 0603 VISHAY CRCW0603127RFKEA

42 1 R123 RES., CHIP, 1M, 1%, 0603 VISHAY CRCW06031M00FKEA

43 1 R105 RES., CHIP, 681k, 1%, 0603 VISHAY CRCW0603681KFKEA

44 1 R106 RES., CHIP, 3.3Ω, 1%, 0603 VISHAY CRCW06033R30FKEA

45 1 R107 RES., CHIP, 82.5Ω, 1%, 0603 VISHAY CRCW060382R5FKEA

46 2 R108, R118 RES., CHIP, 0.01Ω, 1%, 2010 VISHAY, WSL2010R0100FEA

47 1 R109 RES., CHIP, 100k, 1%, 0603 VISHAY CRCW0603100KFKEA

48 1 R110 TRIMMING POTENTIOMETER, 5k BOURNS, 3386P-1-502LF

49 2 R111, R115 RES., CHIP, 20k, 1%, 0603 VISHAY CRCW060320K0FKEA

50 1 R114 RES., CHIP, 154k, 1%, 0603 VISHAY CRCW0603154KFKEA

51 1 R117 RES., CHIP, 2Ω, 1%, 0603 VISHAY CRCW06032R00FKEA

52 2 SW1, SW2 CONNECTOR, SUB MINIATURE SLIDE

SWITCHES

C&K., JS202011CQN

53 3 U1, U2, U3 IC, LTM4676EY LINEAR TECH. LTM4676EY

54 1 U5 IC, 24LC025T-E/OT SOT-23 6-LEAD MICROCHIP, 24LC025T-E/OT

55 1 U6 IC., LT1129CS8-5, S8 LINEAR TECH. LT1129CS8-5

56 1 U7 IC., LTC6992-1, S6-TSOT LINEAR TECH. LTC6992CS6-1

57 1 U8 IC., LT1803IS5, S5-TSOT LINEAR TECH. LT1803IS5

Additional Demo Board Circuit Components

1 0 CIN16-CIN19 (OPT) CAP., OPTIONAL

2 0 C1, COUT2, C2, COUT3 (OPT), C6, C8, C9, COUT10,

C10, COUT11, C11, COUT13, C13, C14, C15, C16,

C17, C18, C19, C20, COUT14, COUT24, COUT21,

COUT22, COUT25, COUT27, COUT29, COUT30,

COUT31, COUT32, COUT35, COUT33, COUT36,

COUT37, COUT38, COUT34

CAP., OPTIONAL

3 0 R1, R3, R5, R17, R34, R31, R33, R29(OPT), R38,

R52, R55, R57, R59, R61, R28, R63, R71, R73,

R75, R77, R88, R91, R93, R94, R102, R103, R13,

R37, R62, R76, R79, R80, R21, R22, R23, R24,

R43, R44, R45, R46, R67, R68, R69, R70, R81,

R82, R68, R69, R70, R81, R82, R83, R84, R87

RES., OPTIONAL

4 0 U4 (OPT) OPTIONAL

Hardware: For Demo Board Only

1 23 E2-E24 TESTPOINT, TURRET, 0.062" MILL-MAX, 2308-2-00-80-00-00-07-0

2 2 JP1, JP2 HEADER, 1X3 PIN 0.079" SINGLE ROW SULLIN, NRPN031PAEN-RC

3 2 XJP1, XJP2 SHUNT, 0.079" CENTER SAMTEC, 2SN-KB-G

4 6 J1, J2, J3, J4, J5, J6 STUD, TESTPIN PEM KFH-032-10

5 12 J1, J2, J3, J4, J5, J6 (x2) NUT, BRASS 10-32 ANY #10-32

6 6 J1, J2, J3, J4, J5, J6 RING, LUG #10 KEYSTONE #10

7 6 J1, J2, J3, J4, J5, J6 WASHER, TIN PLATED BRASS 10EXT

8 4 (STAND-OFF) STAND-OFF, NYLON 0.50" TALL KEYSTONE, 8833(SNAP ON)

9 1 FAB, PRINTED CIRCUIT BOARD DEMO CIRCUIT TOP 1989A

parts List

dc1989abf

DEMO MANUAL DC1989A-B

schematic Diagram

D D

C C

B B

A A

1210

0.035 VIA

TESTPOINTS

121035V

4.5V - 16V

1210 1210

1210

6.3V 1210 1210

0805

OFF

RUN0

NOTE: UNLESS OTHERWISE SPECIFIED

1. ALL RESISTORS ARE 0603.

ALL CAPACITORS ARE 0603.

1210 6.3V1210 1210 6.3V

µModule REGULATOR WITH DIGITAL POWER MANAGEMENT

0805

WHEN VIN < 5.75V, SHORT INTVCC TO VIN WITH R5,R34, R61.

1V / 75A

ALERTB

SCL

SDA

RUN0

SYNC

SHARE_CLK

GPIO0B

VIN

VOUT0

VIN

VOUT0

VOSNS0+

SHARE_CLK

ALERTB

COMP0

SCL

SDA

VOSNS0-

GPIO0B

RUN0

VOSNS0+

SYNC

REVISION HISTORY

DESCRIPTION DATEAPPROVEDECO REV

JIAN L.PROUCTION2 12-10-12

REVISION HISTORY

DESCRIPTION DATEAPPROVEDECO REV

JIAN L.PROUCTION2 12-10-12

REVISION HISTORY

DESCRIPTION DATEAPPROVEDECO REV

JIAN L.PROUCTION2 12-10-12

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

Tuesday, May 28, 2013

HIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWN

JIAN L.

LTM4676EY

DEMO CIRCUIT 1989A-B

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

Tuesday, May 28, 2013

HIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWN

JIAN L.

LTM4676EY

DEMO CIRCUIT 1989A-B

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

Tuesday, May 28, 2013

HIGH EFFICIENCY, POLY-PHASE, DC/DC STEP-DOWN

JIAN L.

LTM4676EY

DEMO CIRCUIT 1989A-B

COUT4

330uF

COUT4

330uF

R5 OPTR5 OPT

220pF

R25 0R25 0

R21 (OPT)R21 (OPT)

10K

VDD25

OPT

R4 0R4 0

COUT2

OPT

COUT2

OPT

R22 (OPT)

CIN4

10uF

CIN4

10uF

CIN6

10uF

CIN6

10uF

COUT10

OPT

COUT10

OPT

R26

R12

10K

R12

10K

R16

OPT

P1P1

R24

(OPT)

R24

(OPT)

COUT8

330uF

COUT8

330uF

CIN1

10uF

1210

CIN1

10uF

1210

P3P3

R23

(OPT)

R23

(OPT)

OPT

COUT6

100uF

1210

COUT6

100uF

1210

LTM4676EY

VOUT0

ISNS0b-

ISNS0b+

ISNS1b- G1

ISNS1b+ H1

VOUT1 J1

VOUT1 J2

VOUT1 J3

VOUT1 K1

VOUT0

ISNS0a-

ISNS0a+

ISNS1a- G2

ISNS1a+ H2

VOUT1 K2

VOUT1 K3

VOUT1 L1

VOUT1 L2

VOUT0

GND

VOUT1 L3

VOUT1 M1

VOUT1 M2

VOUT1 M3

GND

A10

GND

ASEL G4

FSWPHCFG H4

GND

GPIO0 E4

GPIO1 F4

SNUB0

GND

TSNS0b

TSNS0a

ALERT E5

RUN0 F5

VOUT0CFG G5

VTRIM0CFG H5

TSNS1a J5

TSNS1b K5

GND

SNUB1 M5

GND

SDA D6

SCL E6

RUN1 F6

VOUT1CFG G6

VTRIM1CFG H6

VDD25 J6

WP K6

GND

F10

GND

G10

SYNC E7

GND

M10

SHARE_CLK H7

VDD33 J7

GND

G11

GND

G12

GND

L8 GND

GND

COMP0b

COMP0a

SGND

COMP1a H8

COMP1b J8

GND

H10

GND

VOSNS0+

VOSNS0-

INTVCC F9

INTVCC G9

VOSNS1 H9

VORB1 J9

GND

J10

GND

SW0

B10

DNC

E11

VORB0+

D10

VORB0-

E10

GND

DNC

C10

SW1 L10

GND

VINH0

B12 VINH0

B11 VINH0

A12 VINH0

A11

DNC

K10

VINL

F12

GND

DNC

H11

VINH1 H12

VINH1 J11

VINH1 J12

VINH1 K11

VINH0

E12 VINH0

D12 VINH0

D11 VINH0

C12 VINH0

C11

VINL

F11

GND

VINH1 K12

VINH1 L11

VINH1 L12

VINH1 M11

VINH1 M12

SGND

GND

CIN3

150uF

CIN3

150uF

R20 22.6KR20 22.6K

R10

10K

R10

10K

R19 787R19 787

INTVCC

R13

OPT

R13

OPT

GND0_SNS

VIN

10K

R17 OPTR17 OPT

10K

GND

R18

P5P5

P2P2

R11

10K

R11

10K

3.3nF

10nF

VIN

CIN7

10uF

CIN7

10uF

OPT

R14

CIN2

10uF

1210

CIN2

10uF

1210

COUT9

100uF

COUT9

100uF

GND

R15

10K

R15

10K

VOUT0_SNS E6

VOUT0_SNS

SW1SW1

R120 0R120 0

COUT5

330uF

COUT5

330uF

CIN5

10uF

CIN5

10uF

VOUT0 J3

VOUT0

COUT1

100uF

COUT1

100uF

COUT7

100uF

1210

COUT7

100uF

1210

10K

VDD33

GND

P4P4

COUT3

OPT

COUT3

OPT

COUT11

OPT

COUT11

OPT

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