Datasheet

Introduction

www.ti.com

15 Bottom Assembly .......................................................................................................... 12

16 TPS54525EVM-608 Schematic Diagram............................................................................... 13

List of Tables

1 Input Voltage and Output Current Summary ............................................................................ 2

2 TPS54525EVM-608 Performance Specifications Summary .......................................................... 2

3 Output Voltages ............................................................................................................. 3

4 Connection and Test Points ............................................................................................... 4

5 Bill of Materials............................................................................................................. 13

1 Introduction

The TPS54525 is a single, adaptive on-time, D-CAP2™-mode, synchronous buck converter requiring a

very low external component count. The D-CAP2™ control circuit is optimized for low-ESR output

capacitors such as POSCAP, SP-CAP, or ceramic types and features fast transient response with no

external compensation. The switching frequency is internally set at a nominal 650 kHz. The high-side and

low-side switching MOSFETs are incorporated inside the TPS54525 package along with the gate drive

circuitry. The low drain-to-source on resistance of the MOSFETs allow the TPS54525 to achieve high

efficiencies and helps keep the junction temperature low at high output currents. The TPS54525 dc/dc

synchronous converter is designed to provide up to a 5.5-A output from an input voltage source of 4.5 V to

18 V. The output voltage range is from 0.76 V to 5.5 V. Rated input voltage and output current ranges for

the evaluation module are given in Table 1.

The TPS54525EVM-608 evaluation module is a single, synchronous buck converter providing 1.05 V at

5.5 A from 5-V to 18-V input. This user’s guide describes the TPS54525EVM-608 performance.

Table 1. Input Voltage and Output Current Summary

EVM Input Voltage Range Output Current Range

TPS54525EVM-538 VIN = 4.5 V to 18 V 0 A to 5.5 A

2 Performance Specification Summary

A summary of the TPS54525EVM-608 performance specifications is provided in Table 2. Specifications

are given for an input voltage of VIN = 12 V and an output voltage of 1.05 V, unless otherwise noted. The

ambient temperature is 25°C for all measurement, unless otherwise noted.

Table 2. TPS54525EVM-608 Performance Specifications Summary

Specifications Test Conditions Min Typ Max Unit

Input voltage range (VIN) 4.5 12 18 V

Output voltage 1.05 V

Operating frequency VIN = 9 V, I

= 1 A 650 kHz

CH1 Output current range 0 5.5 A

Over current limit VIN = 12 V, L

= 1.5 µH 6.9 A

Output ripple voltage VIN = 12 V, I

= 5.5 A 7 mV

TPS54525EVM-608 5.5-A, SWIFT™ Regulator Evaluation Module SLVU643–May 2012

Submit Documentation Feedback