SP6641A Datasheet (Sipex) - 500mA Alkaline DC/DC Boost Regulator

SP6641A, 500mA Alkaline DC/DC Boost Regulator

® SP6641A/6641B 500mA Alkaline DC/DC Boost Regulator in SOT-23 s Ultra Low Quiescent Current: 10µA s Wide Input Voltage Range: 0.9V to 4.5V s 90mA IOUT at 1.3V Input (SP6641A-3.3V) s 500mA IOUT at 2.6V Input (SP6641B-3.3V) s 100mA IOUT at 2.0V Input (SP6641A-5.0V) s 500mA IOUT at 3.3V Input (SP6641B-5.0V) s Fixed 3.3V or 5.0V Output Voltage s Up to 87% Efficiency s 0.3Ω NFET RDSon s Startup Voltage Guaranteed at 0.9V s 0.33A Inductor Current Limit (SP6641A) s 1A Inductor Current Limit (SP6641B

SP6641A Features

* a 10µA quiescent current, a 0.3Ω Nchannel charging switch, 0.9V input startup, and a 0.33A or 1.0A inductor current limiting feature. The SP6641 is offered in a 5 pin SOT-23 package and provides an extremely small power supply footprint optimized for portable applications. The SP6641 is preset to 3.