TPS54521 Datasheet 5A Synchronous Step Down Converter

Manufacturer: Texas Instruments

TPS54521 5a synchronous step down converter by Texas Instruments - Datasheet Preview

Datasheet Details

Part number	TPS54521
Manufacturer	Texas Instruments
File Size	1.74 MB
Description	5A Synchronous Step Down Converter
Download	TPS54521 Download (PDF)

General Description

The TPS54521 is a full featured 17V, 5A synchronous step down converter which is optimized for small designs through high efficiency and integrated high-side and low-side MOSFETs.

Further space savings are achieved through current mode control, which reduces component count, and by selecting a high switching frequency, reducing the inductor's footprint.

The output voltage startup ramp is controlled by the SS/TR pin which allows operation as either a stand alone power supply or in tracking situations.

Overview

www.ti.com TPS54521 SLVS981C – JUNE 2010 – REVISED AUGUST 2013 4.

Key Features

1.
2 Integrated 57mΩ / 50mΩ MOSFETs.
Split Power Rail: 1.6V to 17V on PVIN.
200kHz to 900kHz Switching Frequency.
Synchronizes to External Clock.
0.8V Voltage Reference.
Low 2uA Shutdown Quiescent Current.
Hiccup Overcurrent Protection.
Monotonic Start-Up into Prebiased Outputs.
40°C to 125°C Operating Junction Temperature Range.
Pin-to-Pin Compatible with the TPS54620.
Adjustable Slow Star.

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