Skip to main content
Design DocumentAnalog

Evaluation Board DC1083A-B for LTM4603HV Step-Down μModule Regulator

DC1083A-B features the LTM4603HV, a 6A step-down μModule regulator. It supports 4.5V-28V input and 0.6V-5V jumper-selectable output with frequency synchronization and margining.

View design document

Overview

The DC1083A-B demonstration circuit is designed to evaluate the LTM4603HV, a high-efficiency, high-density step-down μModule regulator. The board operates from an input voltage range of 4.5V to 28V and delivers up to 6A of continuous output current. Output voltages are jumper-selectable for 1.2V, 1.5V, 1.8V, 2.5V, 3.3V, and 5V. The design supports synchronization to an external clock via the PLLIN pin (700kHz to 1.3MHz) and features programmable output ramp-up and ramp-down through the TRACK/SS pin. Additionally, the manual provides instructions for margining tests to stress systems by varying supply voltages by +/-5%. The document includes detailed performance summaries, efficiency curves, a complete bill of materials, and schematic diagrams.

Use Cases

  • High-density power supply prototyping
  • Evaluation of LTM4603HV efficiency and thermal performance
  • Testing programmable output tracking and sequencing
  • Industrial and telecom point-of-load power systems
  • System stress testing using supply voltage margining

Topics

LTM4603HV
LTM4603HVEV
step-down μModule regulator
DC1083A-B
buck converter
voltage margining
PLL synchronization
Analog Devices
Linear Technology
point-of-load regulation

Referenced Parts

2SN-BK-G

Samtec

6 4 XJP2, XJP7, XJP8, XJP9 SHUNT, 2mm CTRS SAMTEC 2SN-BK-G

TMM-102-02-L-S

Samtec

2 6 JP1 TO JP6 JUMPER, 2 PINS 2mm CTRS SAMTEC TMM-102-02-L-S

TMM-103-02-L-S

Samtec

3 3 JP7, JP8, JP9 HEADERS, 3 PINS 2mm CTRS SAMTEC TMM-103-02-L-S

GMK316BJ106ML-T

Taiyo Yuden

1 2 CIN2, CIN3 CAP, X7R 10μF 35V 20% TAIYO YUDEN GMK316BJ106ML-T

JMK432BJ107MU-T

Taiyo Yuden

2 1 COUT1 CAP, X5R 100μF 6.3V 20% TAIYO YUDEN JMK432BJ107MU-T

LMK316BJ106KL-T

Taiyo Yuden

3 1 COUT4 CAP, X5R 10μF 10V 10% TAIYO YUDEN LMK316BJ106KL-T

MMBZ5231B

Onsemi

8 1 D1 ZENER DIODE, 5.1V ON SEMICONDUCTOR MMBZ5231B

CR16-100JM

AAC

RES, CHIP 10 0.1W 5%

CR16-1332FM

AAC

RES, CHIP 13.3k 0.1W 1%

CR16-3012FM

AAC

RES, CHIP 30.1k 0.06W 1%

112404

Connex

BNC CONNECTOR

LRF1206-01-R010-F

IRC

RES, LRC 0.010 0.25W 1%

575-4

Keystone

CONNECTOR, BANANA JACK

8833

Keystone

STAND-OFF, NYLON, 0.50" Tall

LTM4603HVEV

Linear Technology

IC, VOLTAGE REGULATOR

2308-2

Mill-Max

TURRET, TESTPOINT

SUD50N03-10

Siliconix

MOSFET, N-CHANNEL 30V

35ME150WXV

Suncon

CAP, ALUM 150μF 35V 10%

LMK107BJ105KA

Taiyo Yuden

CAP, X5R 1μF 10V 10%

LMK107BJ105KA

Taiyo Yuden

6 2 C1, C2 CAP, X5R 1μF 10V 10% TAIYO YUDEN LMK107BJ105KA

5.1V

ON Semiconductor

8 1 D1 ZENER DIODE, 5.1V ON SEMICONDUCTOR MMBZ5231B

Evaluation Board DC1083A-B for LTM4603HV Step-Down μModule Regulator | Design Resources