TPS53353DQPR

Description

Having integrated MOSFETs, the 20-A synchronous switcher TPS53353DQPR operates in D-CAP^TM mode. It is made with simplicity of use, minimal exterior component count, and space-saving power systems in mind.

This device has an integrated boost switch, accurate 1 percent, 5.5-mΩ/2.2-mΩ MOSFETs, and 0.6-V reference. There is no need for compensation, internal soft-start control, selectable frequency, a conversion input voltage range of 1.5 V to 15 V, a very low external component count, auto-skip mode operation, D-CAP^TM mode control for super-fast transient, and internal soft-start control are a few examples of competitive features.

The supply voltage ranges from 4.5 to 25 volts, the output voltage ranges from 0.6 to 5.5 volts, and the conversion input voltage extends from 1.5 to 15 volts.

The device has a temperature range of -40°C to 85°C and is offered in a 22-pin, 5-mm by 6-mm QFN package.

Features

• Overvoltage, undervoltage, UVLO, and overtemperature protection

• Supports all ceramic output capacitors

• Open-drain power-good indication

• Incorporates NexFET? power block technology

• 22-pin QFN package with PowerPAD?

• 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

• Supports single-rail input

• Integrated power MOSFETs with 20 A of continuous output current

• Auto-skip Eco-mode? for light-load efficiency

• < 10-μA shutdown current

• D-CAP? mode with fast transient response

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

• New product available: TPS548B28 16-V, 20-A synchronous-buck converter with remote sense

• Conversion input voltage range: 1.5 V to 15 V

• VDD input voltage range: 4.5 V to 25 V

• 92% efficiency from 12 V to 1.5 V at 20 A

• Output voltage range: 0.6 V to 5.5 V

• 5-V LDO output

Applications

• ASIC, SoC, FPGA, DSP core, and I/O voltage

• Enterprise rack Servers and storage

• Wired networking switches and routers

• Automotive electronics

• Power converters