Linear Technology DC2143A-B Manual de usuario

dc2143abfa

DEMO MANUAL DC2143A-B

Description

LTM4677

Dual 18A or Single 36A µModule Regulator

with Digital Power System Management

3× LTM4677; 108A

Demonstration circuit 2143A-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 1.8V, and

it can supply 108A maximum load current. The demo

board has three LTM

4677 µModule

regulators, and the

LTM4677 is a dual 18A or single 36A step-down regulator

with PMBus power system management. Please see the

LTM4677 data sheet for more detailed information

DC2143A-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

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

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

property of their respective owners.

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

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 LTM4677 Quick Start Guide

in this document.

Design files for this circuit board are available at

http://www.linear.com/demo/DC2143A-B

Figure 1. 3× LTM4677; 108A DC2143A-B Demo Circuit

Downloaded from Arrow.com.

dc2143abfa

DEMO MANUAL DC2143A-B

Quick start proceDure

Demonstration circuit 2143A-B is easy to set up to evalu-

ate the performance of the LTM4677EY. 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 1.0V output load between VOUT 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 1.0V ±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 LTM4677

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 DC2143A-B

You can use a PC to reconfigure the power management

features of the LTM4677 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 = 4.5V to 16V, IOUT0 = 0A to 108A 0.5V to 1.8V, Default: 1V

Maximum Output Current, IOUT0 VIN = 4.5V to 16V, VOUT = 0.5V to 1.8V 108A

Typical Efficiency VIN = 12V, VOUT = 1.0V, IOUT = 108A 81.5%

Default Switching Frequency 500kHz

Table 1. LTM4677 Demo Cards for Up to 144A Point-of-Load Regulation

MAXIMUM OUTPUT

CURRENT NUMBER OF OUTPUT VOLTAGES

NUMBER OF LTM4677 µMODULE

REGULATORS ON THE BOARD DEMO BOARD NUMBER

Dual 18A 2 1 DC2066A

72A 1 2 DC2143A-A

108A 1 3 DC2143A-B

144A 1 4 DC2143A-C

Downloaded from Arrow.com.Downloaded from Arrow.com.

dc2143abfa

DEMO MANUAL DC2143A-B

Quick start proceDure

+–

1mΩ

VOUT0

LOAD (0A~108A)

+–

+– + –VIN

4.5V to 16V

+ –

VOUT GND

COUT

Figure 2. Proper Measurement Equipment Setup

Figure 3. Measuring Output Voltage Ripple

Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.

dc2143abfa

DEMO MANUAL DC2143A-B

Quick start proceDure

USB Cable

USB to I2C/PMBus

Dongle DC1613A

VIN

VOUT0

Input Power

Supply

LTM4677 Demo Board

DC2143A-B Load

12-Pin (J7)

Connector

LOAD CURRENT (A)

EFFICIENCY (%)

100

4030 50

DC2143AB F05

100 11020100 60 908070

1VOUT

1.8VOUT

VIN = 12V

fSW = 500kHz

DC2143AC F06

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

54A TO 81A LOAD STEP

t(20µs/DIV) DC2143AC F07

VOUT0 (20MHz BW) [5mV/DIV]

t(20µs/DIV)

Figure 4. Demo Setup with PC

Figure 5. Efficiency vs Load Current for VOUT = 1V

and VOUT = 1.8V at VIN = 12V, fSW = 500kHz

Figure 6. Output Voltage VOUT0 vs Load Current

at VIN = 12V, VOUT0 = 1V, fSW = 500kHz

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

VOUT0 = 1V, IOUT0 = 108A, fSW = 500kHz

Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.

dc2143abfa

DEMO MANUAL DC2143A-B

Quick start proceDure

Figure 8. Thermal Performance at VIN = 12V, VOUT0 = 1V, IOUT0 = 108A, TA= 23.8°C, Air Flow 400LFM

Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.

dc2143abfa

DEMO MANUAL DC2143A-B

LTpowerPlay is a powerful Windows based development

environment that supports Linear Technology power sys-

tem management ICs, including the LTM4677, 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

later time. LTpowerPlayprovides unprecedented 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 LTM4677, 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://www.linear.com/ltpowerplay

To access technical support documents for LTC Digital

Power Products visit Help. View online help on the LT-

powerPlay menu.

LtpowerpLay software Gui

Figure 9. LTpowerPlay Main Interface

Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.

dc2143abfa

DEMO MANUAL DC2143A-B

The followingprocedure describes how to use LTpowerPlay

to monitor and change the settings of LTM4677.

1. Download and install the LTpowerPlay GUI:

http://www.linear.com/ltpowerplay

2. Launch the LTpowerPlay GUI.

a. The GUIshould automaticallyidentifythe DC2143A-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 LTM4677

is communicating:

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

the RAM from the TM4677. This reads the configura-

tion from the RAM of LTM4677 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

step, 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.

LtpowerpLay Quick start proceDure

Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.

dc2143abfa

DEMO MANUAL DC2143A-B

parts List

ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER

Required Circuit Components

1 14 CIN1, CIN2, CIN4, CIN5, CIN6, CIN7, CIN8, CIN9,

CIN10, CIN11, CIN12, CIN13, CIN14, CIN15

CAP., X5R, 10µF, 35V, 10%,1210 MURATA, GRM32ER6YA106KA12L

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

3 22 COUT1, COUT2, COUT3, COUT6, COUT7,

COUT9, COUT10, COUT11, COUT12, COUT13,

COUT14, COUT17, COUT18, COUT20,

COUT21, COUT22 COUT23, COUT24, COUT25,

COUT27, COUT29, COUT30

CAP., X5R, 100µF, 6.3V, 20% 1210 MURATA, GRM32ER60J107ME20K

4 8 COUT4, COUT5, COUT8, COUT15, COUT16,

COUT19, COUT26, COUT28,

POSCAP, 470µF, 2.5V, SP-CAP, D3L PANASONIC, EEF-LX0E471E4

5 1 C3 CAP., X7R, 220pF, 16V, 10%, 0603 AVX, 0603YC221KAT2A

6 1 C4 CAP., X7R, 6800pF, 16V, 10%,0603 AVX, 0603YC682KAT2A

7 4 C5, C12, C33, C34 CAP., X5R, 0.01µF, 16V, 10%,0603 AVX, 0603YD103KAT2A

8 1 C32 CAP., X5R, 0.1µF, 16V, 10%,0603 MURATA, GRM188R61C104KA01D

9 1 C64 CAP., X5R, 4.7µF, 25V,10%, 0603 MURATA, GRM188R61E475KE11D

10 2 C65, C68 CAP., X7R, 1µF, 25V,10%, 1206 MURATA, GRM31MR71E105KA01L

11 1 C66 CAP., X5R, 0.22µF, 25V,10%, 0805 AVX, 08053D224KAT2A

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

13 1 C69 CAP., X7R, 150pF, 25V,10%, 0603 AVX, 06033C151KAT2A

14 1 C70 CAP., X5R, 1µF, 25V,10%, 0805 MURATA, GRM216R61E105KA12D

15 2 D1, D2 SMT Chip LED, GREEN Wurth Elektronik, 150060GS75000

16 1 D3 SMT Chip LED, RED Wurth Elektronik, 150060SS75000

17 1 D8 DIODE SCHOTTKY 20V 500MA SOD882 2-PIN NXP SEMI., PMEG2005AEL,315

18 1 Q2 MOSFET P-CH 20V 0.58A SOT-23 VISHAY, SI2365EDS-T1-GE3

19 2 Q3, Q4 MOSFET N-CH 60V 115MA SOT-23 FAIRCHILD, 2N7002K

20 2 Q11, Q12 MOSFET N-CH 30V 63A TO252 VISHAY, SUD50N04-8M8P-4GE3

21 1 Q19 MOSFET P-CH 30V 3.5A SOT-23 DIODES INC., DMP3130L-7

22 24 R2, R4, R18, R25, R26, R30, R32, R47, R48,

R50, R56, R58, R60, R72, R74, R104, R120,

R121, R122, R131, R135, R143

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

23 15 R6, R7, R8, R9, R10, R11, R12, R15, R35,

R36, R39, R64, R78, R116, R130

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

24 1 R14 RES., CHIP, 2k, 1%, 0603 VISHAY CRCW06032K00FKEA

25 4 R16, R41, R125, R129 RES., CHIP, 10, 1%, 0603 VISHAY CRCW060310R0FKEA

26 1 R19 RES., CHIP, 787, 1%, 0603 VISHAY CRCW0603787RFKEA

27 4 R49, R51, R53, R54 RES., CHIP

, 0, 1%, 2010 VISHAY CRCW20100000Z0EF

28 2 R85, R124 RES., CHIP, 200, 1%, 0603 VISHAY CRCW0603200RFKEA

29 1 R86 RES., CHIP, 127, 1%, 0603 VISHAY CRCW0603127RFKEA

30 1 R105 RES., CHIP, 681k, 1%, 0603 VISHAY CRCW0603681KFKEA

31 1 R106 RES., CHIP, 3.3, 1%, 0603 VISHAY CRCW06033R30FKEA

32 1 R107 RES., CHIP, 82.5, 1%, 0603 VISHAY CRCW060382R5FKEA

33 2 R108, R118 RES., CHIP, 0.01, 1%, 2010 VISHAY, WSL2010R0100FEA

34 1 R109 RES., CHIP, 100k, 1%, 0603 VISHAY CRCW0603100KFKEA

35 1 R110 TRIMMING POTENTIOMETER, 5k BOURNS, 3386P-1-502LF

36 2 R111, R115 RES., CHIP, 20k, 1%, 0603 VISHAY CRCW060320K0FKEA

37 1 R112 RES., CHIP, 100, 1%, 0603 VISHAY CRCW0603100RFKEA

38 1 R113 RES., CHIP, 1.4k, 1%, 0603 VISHAY CRCW06031K40FKEA

39 1 R114 RES., CHIP, 154k, 1%, 0603 VISHAY CRCW0603154KFKEA

40 1 R117 RES., CHIP, 2, 1%, 0603 VISHAY CRCW06032R00FKEA

Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.Downloaded from Arrow.com.

dc2143abfa

DEMO MANUAL DC2143A-B

parts List

ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER

41 1 R123 RES., CHIP, 1M, 1%, 0603 VISHAY CRCW06031M00FKEA

42 2 R134, R144 RES., CHIP, 4.99k, 1%, 0603 VISHAY CRCW06034K99FKEA

43 1 R141 RES., CHIP, 15.8k, 1%, 0603 VISHAY CRCW060315K8FKEA

44 3 U1, U2, U3 IC, LTM4677EY LINEAR TECH., LTM4677EY#PBF

45 1 U6 IC., LT1129CS8-5, S8 LINEAR TECH. LT1129CS8-5#PBF

46 1 U7 IC., LTC6992-1, S6-TSOT LINEAR TECH. LTC6992CS6-1#PBF

47 1 U8 IC., LT1803IS5, S5-TSOT LINEAR TECH. LT1803IS5#PBF

48 1 U9 IC., EEPROM 2KBIT 400KHZ 8TSSOP MICROCHIP, 24LC025-I/ST

49 2 R40, R42 RES., CHIP, 1.65k, 1%, 0603 VISHAY CRCW06031K65FKEA

50 2 R65, R66 RES., CHIP, 2.43k, 1%, 0603 VISHAY CRCW06032K43FKEA

Additional Demo Board Circuit Components

1 0 CIN16, CIN17, CIN18, CIN19, CAP., OPTIONAL 1210

2 0 COUT31, COUT32, COUT33, COUT35,

COUT36, COUT37

CAP., OPTIONAL 1210

3 0 COUT34, COUT38 OPTIONAL, D3L

4 0 COUT39, COUT40, COUT41, COUT42, OPTIONAL D3L

5 COUT43, COUT44, COUT45, COUT46

6 0 R80 RES., CHIP,OPTIONAL, 0603

7 0 R79 RES., CHIP, OPTIONAL, 0603

8 0 U4 IC, OPTIONAL

9 0 C1, C2, C6, C8, C9, C10, C11, C13, C14, OPTIONAL 0603

10 C15, C16, C17, C18, C19, C20

11 0 C7 OPTIONAL 0603

12 0 D4, D5 DIODE SOD323 OPTIONAL

13 0 R1, R3, R5, R13, R17, R20, R21, R22, R23,

R24, R27, R28, R29, R31, R33, R34, R37, R38,

R43, R44, R45, R46, R57, R59, R61, R62, R63,

R67, R68, R69, R70, R71, R73, R75, R76, R77,

R81, R82, R83, R84, R119, R126, R127, R128,

R132, R133, R136, R137, R139, R140, R142

RES., OPTIONAL 0603

14 0 R102, R103 RES., OPTIONAL 2512

15 0 R138 RES., OPTIONAL 1206

Hardware: For Demo Board Only

1 23 E2-E19, E21-E25 TESTPOINT, TURRET, .062" MILL-MAX, 2308-2-00-80-00-00-07-0

2 2 JP1, JP2 CONN., HEADER, 1X3, 2mm Wurth Elektronik, 62000311121

3 2 JP1, JP2 SHUNT, 2mm Wurth Elektronik, 60800213421

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

5 8 J1, J2, J3, J4 (x2) NUT, BRASS 10-32 ANY, #10-32M/S

6 4 J1, J2, J3, J4 RING, LUG #10 KEYSTONE, 8205

7 4 J1, J2, J3, J4 WASHER, TIN PLATED BRASS ANY, #10

8 2 J5, J6 JACK, BANANA KEYSTONE, 575-4

9 1 J7 CONN HEADER 12POS 2MM STR DL PCB FCI, 98414-G06-12ULF

10 2 J10, J11 CONN, BNC, 5PINS CONNEX, 112404

11 1 J12 CONN RECEPT 2MM DUAL R/A 14POS (F) SULLINS, NPPN072FJFN-RC

12 1 J13 HEADER, 14POS 2MM R/A GOLD (M) MOLEX, 87760-1416

13 1 J14 HEADER, 4 PINS, SHROUDED HIROSE, DF3A-4P-2DSA

14 2 SW1, SW2 SWITCH, SLIDE DPDT 300MA 6V C&K., JS202011CQN

15 4 (STAND-OFF) STAND-OFF, NYLON 0.50" Tall, SNAP ON WURTH ELEKTRONIK, 702935000

16 1 FAB, PRINTED CIRCUIT BOARD DEMO CIRCUIT 2143A

17 2 STENCIL (TOP AND BOTTOM) STENCIL DC2143A

dc2143abfa

DEMO MANUAL DC2143A-B

schematic DiaGram

D D

C C

B B

A A

1210

0.035 VIA

TESTPOINTS

121035V

4.5V - 16V

1210 1210

1210 1210 1210

0805

OFF

RUN0

NOTE: UNLESS OTHERWISE SPECIFIED

1. ALL RESISTORS ARE 0603.

ALL CAPACITORS ARE 0603.

1210 1210 1210

µModule REGULATOR WITH DIGITAL POWER MANAGEMENT

0805

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

1V / 105A

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 DATE

APPROVED

ECO REV

Simon T.PROUCTION2 11-25-15

REVISION HISTORY

DESCRIPTION DATE

APPROVED

ECO REV

Simon T.PROUCTION2 11-25-15

REVISION HISTORY

DESCRIPTION DATE

APPROVED

ECO REV

Simon T.PROUCTION2 11-25-15

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, January 19, 2016

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

JIAN L.

LTM4677EY

DEMO CIRCUIT 2143A-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, January 19, 2016

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

JIAN L.

LTM4677EY

DEMO CIRCUIT 2143A-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, January 19, 2016

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

JIAN L.

LTM4677EY

DEMO CIRCUIT 2143A-B

COUT5

470uF

2.5V

R17 OPT

R10

10K

COUT45

OPT

2.5V

VDD25

OPT

LTM4677EY

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

220pF

VOUT0

CIN5

10uF

CIN7

10uF

CIN2

10uF

1210

GND0_SNS

R13

OPT

CIN4

10uF

COUT7

100uF

1210

R14

VIN

CIN3

150uF

R23

(OPT)

COUT46

OPT

2.5V

R26

CIN6

10uF

R22 (OPT)

COUT2

100uF

COUT3

100uF

VIN

R20 (OPT)

COUT6

100uF

1210

R16

R5 OPT

10K

SW1

R120 0

INTVCC

CIN1

10uF

1210

COUT8

470uF

2.5V

R25 0

GND

VDD33

GND R4 0

R18

R12

10K

COUT4

470uF

2.5V

COUT11

100uF

10K

VOUT0_SNS

R19 787

10nF

6.8nF

GND

10K

R24

(OPT)

COUT10

100uF

OPT

COUT9

100uF

OPT

R21 (OPT)

COUT1

100uF

R15

10K

R11

10K

OPT

Tabla de contenidos

Otros manuales de Placa madre de Linear Technology

Linear Technology

Linear Technology DC1418A-A Manual de usuario

Linear Technology

Linear Technology DC2215A Guía de configuración rápida

Linear Technology

Linear Technology DC1584A Manual de usuario

Linear Technology

Linear Technology DC1464A Manual de usuario

Linear Technology

Linear Technology DC2181A-A Guía de configuración rápida

Linear Technology

Linear Technology Analog Devices DC2564A Guía de configuración rápida

Linear Technology

Linear Technology DC2475A-A Guía de configuración rápida

Linear Technology

Linear Technology DC2024A Guía de configuración rápida

Linear Technology

Linear Technology DC1698A Guía de configuración rápida

Linear Technology

Linear Technology DC1696 Guía de configuración rápida

Linear Technology

Linear Technology DC2197A Guía de configuración rápida

Linear Technology

Linear Technology DC2177A-B Guía de configuración rápida

Linear Technology

Linear Technology 1172A Manual de usuario

Linear Technology

Linear Technology DC2017A Guía de configuración rápida

Linear Technology

Linear Technology DC2194A Guía de configuración rápida

Linear Technology

Linear Technology DC2164A-B Guía de configuración rápida

Linear Technology

Linear Technology DC1763A-F Guía de configuración rápida

Linear Technology

Linear Technology DC1552A Guía de configuración rápida

Linear Technology

Linear Technology DC1999A Guía de configuración rápida

Linear Technology

Linear Technology QuikEval DC1718A Manual de usuario

Linear Technology

Linear Technology DC1525A Guía de configuración rápida

Linear Technology

Linear Technology DC1552A Guía de configuración rápida

Linear Technology

Linear Technology DC1783A-A Guía de configuración rápida

Linear Technology

Linear Technology DC2133A Guía de configuración rápida

Manuales populares de Placa madre de otras marcas

DFI

DFI SD170 Manual de usuario

ASROCK

ASROCK ROMED8-2T Manual de usuario

Asus

Asus P2L97A Manual de usuario

Winmate

Winmate IC70 Manual de usuario

Asus

Asus MES-B Manual de usuario

Grantech

Grantech SYS8F377VGGA-3OMN Manual de usuario

Telit Wireless Solutions

Telit Wireless Solutions SL869-3DR Manual de usuario

Gigabyte

Gigabyte GA-9IVDT Manual de usuario

Texas Instruments

Texas Instruments ADS8372EVM Manual de usuario

Commell

Commell MS-C73 Manual de usuario

IBT Technologies

IBT Technologies MB860 Manual de usuario

Nvidia

Nvidia TEGRA DG-04927-001_V01 Manual de usuario

Biostar

Biostar M7VIT Bravo Instrucciones de funcionamiento e instalación

Intel

Intel D33217CK Manual de usuario

Asus

Asus F1A55-M LX PLUS R2.0 Manual de usuario

EPC

EPC EPC9147C Manual de usuario

Asus

Asus EX-B760M-V5 D4 Manual de usuario

EPOX

EPOX MU-8KHA0010 Manual de usuario