TPS62746

Product Folder Order Now Technical Documents Tools & Software Support & Community TPS62746 SLVSD27A – JUNE 2015 – REVISED AUGUST 2015 TPS62746 300/400 mA High Efficiency Buck Converter with Ultra-low Quiescent Current and VIN Switch 1 Features 1 Input Voltage Range VIN from 2.15 V to 5.5 V Input Voltage Range Down to 2.0 V Once Started 300 mA Output Current 360 nA Operational Quiescent Current Up to 90% Efficiency at 10-µA Output Current Power Save Mode Operation Selectable Output Voltages – 1.2 V and 1.8 V Output Voltage Discharge 1 mA /150 Ω Integrated Input Voltage Switch Low Output Voltage Ripple Automatic Transition to No Ripple 100% Mode RF Friendly DCS-Control™ Total Solution Size <10mm2 Small 1.6 mm × 0.9 mm, 8 Ball WCSP Package 2 Applications Wearables Fitness Tracker Smart Watch Health Monitoring Bluetooth® Low Energy, RF4CE, Zigbee High-efficiency, Ultra Low Power Applications Energy Harvesting 3 Description The TPS62746 is a high efficiency step down converter with ultra low quiescent current of typical 360 nA. The device is optimized to operate with a 2.2-µH inductor and 10µF output capacitor. The device uses DCS-Control™ and operates with a typical switching frequency of 1.2 MHz. In Power Save Mode the device extends the light load efficiency down to a load current range of 10-µA and below. TPS62746 provides an output current of 300 mA. Once started the device operates down to an input voltage range of 2.0 V. This ...