Skip to main content
Design DocumentInfineon

EVAL_TDA38825_5VOUT Evaluation Board User Guide

User guide for the Infineon EVAL_TDA38825_5VOUT evaluation board, featuring a synchronous buck regulator delivering 5V at up to 20A from a 12V input.

View design document

Overview

This design document provides comprehensive details for the EVAL_TDA38825_5VOUT evaluation board, which utilizes the Infineon TDA38825 synchronous buck regulator. The board is optimized for a 12V input voltage and produces a 5V output supporting load currents up to 20A. The document contains a full bill of materials, circuit schematics, and 6-layer PCB layout information. It details technical specifications of the TDA38825, including programmable switching frequencies (600 kHz, 800 kHz, and 1 MHz), a 0.6V precision reference, and integrated protection features such as over-current, over-voltage, and thermal shutdown. Additionally, the guide includes performance test results, efficiency curves, and typical operating waveforms.

Use Cases

  • Server Power Systems
  • Data Storage Solutions
  • Telecom and Datacom Equipment
  • Distributed Point of Load Architectures

Topics

Infineon
TDA38825
EVAL_TDA38825_5VOUT
Buck Regulator
Synchronous Regulator
DC-DC Converter
Evaluation Board
Point of Load
5V Output
20A Load
Bill of Materials
Schematic

Referenced Parts

TDA38825

Infineon

TDA38825 20A Single-voltage Synchronous Buck Regulator

7693

Keystone Electronics

TERM SCREW 6-32 4 PIN PCB

ERJ-2GEJ393X

Panasonic

RES Thick Film 39 kOhm 5.0 % 1/16 W SMD 0402

1909763-1

TE Connectivity

CONN UMCC JACK STR 50OHM SMD

K30C/M

Vector Electronics

PIN INBOARD .042" HOLE 1000/PKG

TDA38825

Infineon

Regulator Infineon TDA38825

131-3701-261

Cinch Connectivity Solutions Johnson

CONN SMB JACK STR 50 OHM PCB

SMAT70A-13

Diodes Incorporated

TVS DIODE 70VWM 100VC SMA

M20-9960345

Harwin Inc.

CONN HEADER R/A 3POS 2.54MM

M20-9990246

Harwin Inc.

CONN HEADER VERT 2POS 2.54MM

25SEPF330M

Panasonic Electronic Components

CAP ALUM POLY 330UF 20% 25V T/H

HSEC8-110-01-S-DV-A-K-TR

Samtec Inc.

CONN EDGE DUAL FMALE 20POS 0.031

C1005X5R1C225K050BC

TDK Corporation

CAP CER 2.2uF 16V X5R 0402 10%

C1005X7R1H221K050BA

TDK Corporation

CAP CER 220pF 50V X7R 0402 10%

CM21X5R107M06AT

TDK Corporation

CAP CER 100uF 6.3V X5R 0805 20%

RE0402FRE0720RL

Yageo

RES Thick Film 20.0 Ohm 1/16W 1% SMD 0402

CM21X5R107M06AT

TDK

6.3V X5R 0805 20% TDK CM21X5R107M06AT

RE0402FRE0720RL

Yageo

SMD 0402 Yageo RE0402FRE0720RL

2.54MM

Harwin

VERT 2POS 2.54MM Harwin Inc. M20-9990246

2.54MM

Harwin

3POS 2.54MM Harwin Inc. M20-9960345