TPS53318DQPR Description

  The TPS53318 devices are D-CAP mode, 8mura or 14mura synchronous switches, integrated with MOSFET. They are designed for power systems that are easy to use, have a small number of external components, and save space. These devices have accurate 1%, 0.6 V reference voltages and integrated boost switches. Examples of competitive features include: a wide conversion input voltage range from 1.5V to 22V, very low number of external components, D-CAP transition mode control for ultra-fast transients, automatic jump mode operation, internal soft-start control, optional frequency without compensation.

TPS53318DQPR Features 

Conversion input voltage range: 1.5 V to 22 V

VDD input voltage range: 4.5 V to 25 V

91% efficiency from 12 V to 1.5 V at 14 A

Output voltage range: 0.6 V to 5.5 V

5-V LDO output

Supports single-rail input

Integrated power MOSFETs with 8 A (TPS53318) or 14 A (TPS53319) of continuous output current

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

< 110 μA shut down current

D-CAP? 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

Pre-charged start-up capability

Adjustable overcurrent limit with thermal compensation

Overvoltage, undervoltage, UVLO and over-temperature protection

Supports all ceramic output capacitors

Open-drain power good indication

Incorporates NexFET? power block technology

22-pin QFN (DQP) package with PowerPAD?

TPS53318DQPR  Applications

ultra-fast transients

automatic jump mode operation

internal soft-start control