Description:

The TPS62090-Q1 device family is a high-frequency synchronous step-down converter optimized for small design size and high efficiency in battery-powered applications. To maximize efficiency, the converters in this family operate in pulse-width modulation (PWM) mode at a nominal switching frequency of 2.8MHz to 1.4MHz, and automatically enter power-save operating mode at light load currents. When used for distributed power and point-of-load regulation, these devices allow voltage tracking of other voltage rails and allow the use of output capacitors in the range of 10µF to 150µF and even higher. By using the DCS-Control topology, these devices achieve excellent load transient performance and accurate output regulation. The output voltage startup ramp is controlled by the SS pin, supporting operation as a standalone power supply or in a tracking configuration. Power sequencing is also possible by configuring the enable and power good pins. In power-save mode, these devices have a typical quiescent operating current of 20µA. They automatically enter power-save mode and maintain high efficiency seamlessly over the entire load current range.

Features:

Qualified for automotive applications

Meets AEC-Q100 standard with the following characteristics: – Device temperature grade 1: –40°C to 125°C operating junction temperature range – Device HBM ESD classification level H2 – Device CDM ESD classification level C6

Input voltage range from 2.5V to 6V

DCS-Control

Converter efficiency 95%

Power-save mode

20µA operating quiescent current

100% duty cycle for ultra-low dropout

2.8MHz and 1.4MHz typical switching frequency

0.8V to VIN adjustable output voltage

Output discharge function

Adjustable soft start

Hiccup short-circuit protection

Output voltage tracking

Wide output capacitor selection

Available in a 3mm × 3mm 16-pin QFN package

New product introduced: TPS62813-Q1 6V step-down converter in a 2mm × 3mm QFN package with wettable flanks

Applications:

Automotive applications

Distributed power supplies

Processor power supplies

Battery-powered applications