TPS62090EVM-063: 1.8V @ 3A, 2.5 ~ 6V in

Summary

The TPS62090 device family is a high-frequency synchronous step down converter optimized for small solution size, high efficiency, and is suitable for battery-powered applications. To maximize efficiency, the converter operates in PWM mode with a nominal switching frequency of 2.8 MHz/1.4 MHz and automatically enters Power Save Mode operation at light-load currents.

When used in distributed power supplies and point-of-load regulation, the device allows voltage tracking to other voltage rails and tolerates capacitors ranging from 22 μF up to 100 μF. Using the DCS Control™ topology, the device achieves excellent load transient performance and accurate output voltage regulation. The device is available in 3 x 3-mm, 16-pin package with thermal pad.

The user’s guide describes the TPS62090 evaluation module (EVM) and how to perform a stand-alone evaluation or interface with a host or system.

The TPS62090 is a step-down converter that operates with an input voltage between 2.5 V and 6 Vdc, an output voltage of 1.8 V using external resistors, and can deliver up to 3000 mA of continuous current. The converter has a programmable soft-start, a power-out good status, and several other safety features. See the data sheet for the complete description.

Specifications

Manufacturer	Texas Instruments
Category	AC/DC and DC/DC Conversion
Sub-Category	DC/DC SMPS - Single Output
Eval Board Part Number	296-30325-ND
Eval Board Supplier	Texas Instruments
Eval Board	Normally In Stock
Topology	Step Down
Outputs and Type	1 Non-Isolated
Voltage Out: Factory Set	1.8 V
Current Out	3 A
Voltage In	2.5 ~ 6 V
Efficiency @ Conditions	>90%, 2.7V in, 1.8V @ 0.9 mA ~ 2 A >85%, 5V in, 1.8V @ 1 mA ~ 3 A >85%, 4.2V in, 1.8V @ 0.7 mA ~ 3 A >85%, 3.7V in, 1.8V @ 0.5 mA ~ 3 A
Voltage Out Range	0.8 ~ Vin
Features	Current Limit (Adj. or Fixed) Light Load Mode Power Good Output Power Save Mode Shutdown, Enable, Standby Soft Start Thermal Protection Under Voltage Protection, Brown-Out Voltage Tracking
Switching Frequency	1.4 MHz 2.8 MHz
Standby Current [Typical]	600 nA
Quiescent Current [Typical]	20 µA
Component Count + Extras	11 + 14
Internal Switch	Yes
Design Author	Texas Instruments
Application / Target Market	Computers Portable Devices Power: Auxiliary Power Supply Tablets
Standby Current [Maximum]	5 µA
Quiescent Current [Maximum]
Main I.C. Base Part	TPS62090
Date Created By Author	2012-03
Date Added To Library	2013-04