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DC2164A-C: 140A PolyPhase Step-Down Power µModule Regulator Demo Manual

A demo manual for the DC2164A-C circuit, featuring the LTM4630-1A for a 140A high-efficiency step-down regulator with 4.5V-15V input and 0.9V-1.8V output.

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Overview

This document provides the technical description and operating instructions for the DC2164A-C demonstration circuit, which utilizes the LTM4630-1A µModule regulator. The design implements a PolyPhase configuration to achieve a nominal output current of 140A. It accepts an input voltage between 4.5V and 15V and provides a jumper-selectable output voltage from 0.9V to 1.8V with ±0.8% total DC error. The circuit supports remote sensing for precise regulation at high loads, programmable switching frequencies from 400kHz to 780kHz, and output voltage tracking. The document includes a full Bill of Materials, performance summaries, and schematic diagrams.

Use Cases

  • High-density point-of-load regulation
  • High-current power supply design
  • FPGA and ASIC core power
  • Telecom and networking equipment power
  • Server and storage system power

Topics

LTM4630-1
LTM4630EY-1
PolyPhase
Step-Down Regulator
µModule
DC2164A-C
140A Output
Power Module
Remote Sensing
Point-of-Load Regulation
Analog Devices
Linear Technology

Referenced Parts

TMM-102-02-L-S

Samtec

HEADER, 2 PIN 0.079 SINGLE ROW SAMTEC, TMM-102-02-L-S

NRPN031PAEN-RC

Sullins

HEADER, 3 PIN 0.079 SINGLE ROW SULLINS, NRPN031PAEN-RC

LMK107BJ105KA-T

Taiyo Yuden

CAP, 0603 1μF 10% 10V X7R TAIYO YUDEN, LMK107BJ105KA-T

LMK107BJ225MA-T

Taiyo Yuden

CAP, 0603 2.2μF 20% 10V X5R TAIYO YUDEN, LMK107BJ225MA-T

TMK316BJ105KL-T

Taiyo Yuden

CAP, 1206 1μF 10% 25V X5R TAIYO YUDEN, TMK316BJ105KL-T

112404

Amphenol Connex

CON, BNC, 5 PINS CONNEX, 112404

X5R

AVX

3 16 CIN3-CIN10, CIN12-CIN19 CAP, 1210 22μF 10% 25V X5R AVX, 12103D226KAT2A

X7R

AVX

9 2 C24, C31 CAP, 0603 0.01μF 10% 100V X7R AVX, 06031C103KAT2A

X7R

AVX

8 2 C7, C25 CAP, 0603 0.1μF 10% 25V X7R AVX, 06033C104KAT2A

575-4

Keystone

JACK, BANANA KEYSTONE, 575-4

8205

Keystone

LUG RING, #10 KEYSTONE, 8205

LTM4630IY-1A#PBF

Linear Technology

IC, VOLTAGE REGULATOR, BGA LINEAR TECH., LTM4630IY-1A#PBF

KFH-032-10

PennEngineering

STUD, TEST PIN PEM, KFH-032-10

25CE150AX

Sun Electronic

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

CRCW0603402K2FKEA

Vishay

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

CRCW12060000ZOEA

Vishay

RES, 1206 0Ω JUMPER VISHAY, CRCW12060000ZOEA

CRCW20100000ZEA9

Vishay

RES, 2010 0Ω JUMPER VISHAY, CRCW20100000ZEA9

WSL2512R01000FEA

Vishay

RES, 2512 0.010Ω 1% 1W VISHAY, WSL2512R01000FEA

LTM4630EY-1

Linear Technology

Demonstration Circuit 2164A-C features a PolyPhase® design using the LTM® 4630EY-1 (A-grade)

X5R

Murata

CAP, 1206 220μF 20% 4V X5R MURATA, GRM31CR60G227ME11L

X5R

Taiyo Yuden

6 4 C4, C10, C18, C22 CAP, 0603 2.2μF 20% 10V X5R TAIYO YUDEN, LMK107BJ225MA-T

X5R

Taiyo Yuden

2 2 CIN2, CIN11 CAP, 1206 1μF 10% 25V X5R TAIYO YUDEN, TMK316BJ105KL-T

X7R

Taiyo Yuden

7 6 C6, C11, C19, C23, C27, C28 CAP, 0603 1μF 10% 10V X7R TAIYO YUDEN, LMK107BJ105KA-T

1/10W

Vishay

15 1 R11 RES, 0603 2.32k 1% 1/10W VISHAY, CRCW06032K32FKEA

1/10W

Vishay

14 4 R9, R31, R43, R51 RES, 0603 100k 1% 1/10W VISHAY, CRCW0603100KFKEA

1/10W

Vishay

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

1/10W

Vishay

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

1/10W

Vishay

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

1/10W

Vishay

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

1/10W

Vishay

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

1/10W

Vishay

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

1/10W

Vishay

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

TO252

Vishay

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