TPS62743YFPR

Order Now Product Folder Support & Community Tools & Software Technical Documents TPS62743, TPS627431 SLVSCQ0A – JUNE 2015 – REVISED MAY 2016 TPS62743 TPS627431 300/400 mA High Efficiency Buck Converter with Ultra-low Quiescent Current 1 Features 3 Description • • • The TPS62743 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. TPS62743 provides an output current of 300 mA. Once started the device operates down to an input voltage range of 2.0 V. This allows to operate the device directly from a single Li-MnO2 coin cell. 1 • • • • • • • • • • Input Voltage Range VIN from 2.15 V to 5.5 V Input Voltage Range Down to 2.0 V Once Started Output Current – TPS62743 300 mA – TPS627431 400mA 360 nA Operational Quiescent Current Up to 90% Efficiency at 10-µA Output Current Power Save Mode Operation Selectable Output Voltages – 8 voltage options between 1.2 V to 3.3 V Output Voltage Discharge Low Output Voltage Ripple Automatic Transition to No Ripple 100% Mode RF Friendly DCS-Control™ Total Solution Size