TPS61099

TPS61099 SLVSD88L – JULY 2016 – REVISED AUGUST 2021 TPS61099x Synchronous Boost Converter with Ultra-Low Quiescent Current 1 Features 600-nA ultra-low IQ into VOUT pin 400-nA ultra-low IQ into VIN pin Operating input voltage from 0.7 V to 5.5 V Adjustable output voltage from 1.8 V to 5.5 V Fixed output voltage versions available Minimum 0.8-A switch peak current limit Regulated output voltage in down mode True disconnection during shutdown Up to 75% efficiency at 10-µA load with fixed output voltage versions Up to 93% efficiency from 10-mA to 300-mA load 6-ball 1.23-mm × 0.88-mm WCSP package and 2-mm × 2-mm WSON package Create a custom design using the TPS61099x with the WEBENCH® Power Designer 2 Applications Memory LCD bias Optical heart rate monitor LED bias Wearable applications Low-power wireless applications Portable products Battery powered systems 3 Description The TPS61099x device is a synchronous boost converter with 1-µA ultra-low quiescent current. The device is designed for products powered by an alkaline battery, NiMH rechargeable battery, Li-Mn battery, or rechargeable Li-Ion battery where high efficiency under light-load condition is critical to achieve long battery life operation. The TPS61099x boost converter uses a hysteretic control topology to obtain maximal efficiency at minimal quiescent current. It only consumes 1-µA quiescent current under light-load condition and can achieve up to 75% efficiency at 10-µA load with...