Datasheet

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Introduction

1 Introduction

The TPS53319EVM-136 evaluation module (EVM) uses the TPS53319. The TPS53319 is a D-CAP™

mode, 14A synchronous Buck converter with integrated MOSFETs. It provides a fixed 1.5V output at up to

14A from a 12V input bus.

1.1 Typical Applications

• Server/Storage

• Workstations and Desktops

• Telecommunication Infrastructure

1.2 Features

The TPS53319EVM-136 features:

• 14A DC Steady State Output Current

• Support pre-bias output voltage start-up

• J3 for selectable switching frequency setting

• J4 for selectable soft start time

• J5 for auto-skip and forced CCM selection

• J6 for enable function

• Convenient test points for probing critical waveforms

2 Electrical Performance Specifications

Table 1. TPS53319EVM-136 Electrical Performance Specifications

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PARAMETER TEST CONDITIONS MIN TYP MAX UNITS

INPUT CHARACTERISTICS

Voltage range VIN 8 12 20 V

Maximum input current VIN = 8V, Io = 14 A 2.874 A

No load input current Vin=20V, Io=0A with auto skip mode 0.7 mA

OUTPUT CHARACTERISTICS

Output voltage VOUT 1.5 V

Output voltage regulation Line regulation(Vin=8V-20V) 0.1%

Load regulation(Vin=12V, Io=0A-14A) Auto-skip 1%

Output voltage ripple Vin=12V, Io=14A 15 mVpp

Output load current 0 14 A

Output over current 16 A

SYSTEMS CHARACTERISTICS

Switching frequency 500 kHz

Peak efficiency Vin=12V, 1.5V/8A 91.68%

Full load efficiency Vin=12V, 1.5V/14A 90.04%

Operating temperature 25 ºC

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Note: Jumpers set to default locations, See section 6 of this user’s guide

SLVU728–May 2012 High Efficiency 14A Synchronous Buck Converter with Eco-Mode™

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