Step Down Converter
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TPS62740, TPS62742
SLVSB02B – ...
Description
Product Folder
Sample & Buy
Technical Documents
Tools & Software
Support & Community
TPS62740, TPS62742
SLVSB02B – NOVEMBER 2013 – REVISED JULY 2014
TPS6274x 360nA IQ Step Down Converter For Low Power Applications
1 Features
1 Input Voltage Range VIN from 2.2V to 5.5 Typ. 360nA Quiescent Current Up to 90% Efficiency at 10µA Output Current Up to 300mA / 400mA Output Current
(TPS62740/TPS62742) RF Friendly DCS-Control TM Up to 2 MHz Switching Frequency Low Output Ripple Voltage 16 Selectable Output Voltages in 100mV Steps
between 1.8V to 3.3V Automatic Transition to No Ripple 100% Mode Slew Rate Controlled Load Switch Discharge Function on VOUT / LOAD Power Good Output Optimized for Operation with a Tiny 2.2µH
Inductor and 10µF COUT Total Solution Size <31mm2 Small 2 x 3 mm2 WSON Package
2 Applications
Bluetooth® Low Energy, RF4CE, Zigbee Industrial Metering Energy Harvesting
3 Description
The TPS6274x is industry's first step down converter featuring typ. 360nA quiescent current and operating with a tiny 2.2µH inductor and 10µF output capacitor. This new DCS-Control™ based device extends the light load efficiency range below 10µA load currents. TPS62740 supports output currents up to 300mA, TPS62742 up to 400mA. The device operates from rechargeable Li-Ion batteries, Li-primary battery chemistries such as Li-SOCl2, Li-MnO2 and two or three cell alkaline batteries. The input voltage range up to 5.5V allows also operation from a USB port...
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