TPS62745

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPS62745, TPS627451 SLVSC68A – JUNE 2015 – REVISED JUNE 2015 TPS62745 Dual-cell Ultra Low IQ Step Down Converter for Low Power Wireless Applications 1 Features 1 Input Voltage Range VIN from 3.3 V to 10 V Typical 400 nA Quiescent Current Up to 90% efficiency with load currents >15 µA Up to 300 mA Output Current RF Friendly DCS-Control™ Low Output Ripple Voltage 16 Selectable Output Voltages from – 1.8 V to 3.3 V (TPS62745) – 1.3 V to 2.8 V (TPS627451) Integrated input voltage switch Integrated Discharge Function at VOUT Open Drain Power Good Output Operates with a Tiny 3.3 µH or 4.7 µH Inductor Small 3 mm x 2 mm WSON Package 2 Applications Bluetooth® Low Energy, RF4CE, Zigbee Industrial Metering Energy Harvesting 3 Description The TPS62745 is a high efficiency ultra low power synchronous step down converter optimized for low power wireless applications. It provides a regulated output voltage consuming only 400-nA quiescent current. The device operates from two rechargeable Li-Ion batteries, Li-primary battery chemistries such as Li-SOCl2, Li-SO2, Li-MnO2 or four to six cell alkaline batteries. The input voltage range up to 10 V allows also operation from a USB port and thin-film solar modules. The output voltage is set with four VSEL pins between 1.8 V and 3.3 V for TPS62745 or 1.3 V and 2.8 V for TPS627451. TPS62745 features low output ripple voltage and l...