TPS82740AEVM-617: 1.8 ~ 2.5V @ 0.2A, 2.2 ~ 5.5V in

Summary

This user’s guide describes the characteristics, operation, and use of the Texas Instruments TPS82740x evaluation module (EVM). This EVM is designed to help the user easily evaluate and test the operation and functionality of the TPS82740x. The TPS82740AEVM converts a 2.2V to 5.5V input voltage to a regulated output voltage that is set between 1.8V and 2.5V (in 100mV steps) and the TPS82740BEVM 2.6V to 3.3V (in 100mV steps) at up to 200 mA.

The TPS82740x also includes a load switch and features an ultra-low quiescent current of 360 nA. This user’s guide includes setup instructions for the hardware, a printed-circuit board layout for the EVM, a schematic diagram, and a bill of materials.

The TPS82740x devices are a series of high-frequency, synchronous, step-down dc-dc converters optimized for battery-powered portable applications. Intended for low-power applications, the TPS82740x supports up to 200 mA and features a quiescent current of 360 nA typical.

Specifications

Manufacturer	Texas Instruments
Category	AC/DC and DC/DC Conversion
Sub-Category	DC/DC SMPS - Single Output
Eval Board Part Number	296-38428-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 ~ 2.5V in 100mV Steps
Current Out	200 mA
Voltage In	2.2 ~ 5.5 V
Efficiency @ Conditions	>86%, 2.7V in, 2.1V @ 0.01 ~ 200 mA >85%, 3.3V in, 2.1V @ 0.02 ~ 200 mA >85%, 2.7V in, 1.8V @ 0.018 ~ 150 mA >82%, 4.2V in, 2.1V @ 0.05 ~ 200 mA >82%, 3.3V in, 1.8V @ 0.02 ~ 200 mA >80%, 5V in, 2.1V @ 0.1 ~ 200 mA >80%, 4.2V in, 1.8V @ 0.06 ~ 200 mA >76%, 5V in, 1.8V @ 0.04 ~ 200 mA
Voltage Out Range	1.8 ~ 2.5 V
Features	Current Limit (Adj. or Fixed) Internal Inductor Shutdown, Enable, Standby Soft Start Under Voltage Protection, Brown-Out
Switching Frequency	- Not Given
Standby Current [Typical]	12.5 µA
Quiescent Current [Typical]	360 nA
Component Count + Extras	2 + 8
Internal Switch	Yes
Design Author	Texas Instruments
Application / Target Market	Energy Harvesting Point of Load (PoL) Portable Devices RF: Remote Controls RF: Wireless Sensor USB Powered Devices
Standby Current [Maximum]	- Not Given
Quiescent Current [Maximum]	2.3 mA
Main I.C. Base Part	TPS82740A
Date Created By Author	2014-06
Date Added To Library	2015-08