TPS53355DQPR Power Regulator IC EFF,30A,SYNC BUCK CONVERTER

1 Features

• 96% Maximum efficiency

• Conversion input voltage range: 1.5 V to 15 V

• VDD input voltage range: 4.5 V to 25 V

• Output voltage range: 0.6 V to 5.5 V

• 5-V LDO output

• Supports single rail input

• Integrated power MOSFETs with 30 A of continuous output current

• Auto-skip Eco-modeTM for light-load efficiency

• < 10-μA Shutdown current

• D-CAPTM mode with fast transient response

• Selectable switching frequency from 250 kHz to 1 MHz with external resistor

• Selectable auto-skip or PWM-only operation

• Built-in 1% 0.6-V reference

• 0.7-ms, 1.4-ms, 2.8-ms and 5.6-ms Selectable internal voltage servo soft start

• Integrated boost switch

• Precharged start-up capability

• Adjustable overcurrent limit with thermal compensation

• Overvoltage, undervoltage, UVLO and overtemperature protection

• Supports all ceramic output capacitors

• Open-drain power-good indication

• Incorporates NexFETTM power block technology

• 22-Pin QFN package With PowerPADTM

• For SWIFTTM power products documentation, see

  http://www.ti.com/swift

• Green (RoHS compatible), is optional

• Create a custom design using the TPS53355 with the WEBENCH® Power Designer

2 Applications

• Servers and storage

• Workstations and desktops

• Telecommunications infrastructure

3 Description

TPS53355 is a D-CAPTM mode, 30-A synchronous switcher with integrated MOSFETs. It is designed for ease of use, low external component count, and space-conscious power systems.

This device features 5-mΩ/2-mΩ integrated MOSFETs, accurate 1% 0.6-V reference, and integrated boost switch. A sample of competitive features include: 1.5-V to 15-V wide conversion input voltage range, very low external component count, D- CAPTM mode control for super fast transient, auto- skip mode operation, internal soft-start control, selectable frequency, and no need for compensation.

The conversion input voltage ranges from 1.5 V to 15 V, the supply voltage range is from 4.5 V to 25 V, and the output voltage range is from 0.6 V to 5.5 V.

The device is available in 6-mm × 5-mm, 22-pin QFN package and is specified from –40°C to +85°C.

Device Information