HT7737BA

HT77xxBA 5V/200mA PFM Asynchronous Step-up Converter Features Low startup voltage: 0.85V (Typical) High efficiency up to 85% Ultra low no load input current High output voltage accuracy: ±2.5% Fixed output voltage: 2.7V, 3.0V, 3.3V, 3.7V and 5.0V Ultra low shutdown current: 0.1μA (Typical) Package type: TO92, SOT89-3, SOT23-3 and SOT23-5 Applications One, two and three cell alkaline and NiMH/NiCd bettery powered portable products Portable equipment/handheld devices General Description The HT77xxBA series is a set of PFM step-up DC/DC converters with high efficiency and low ripple. The series features extremely low start-up voltage and high output voltage accuracy. They require only few external components to provide a fixed output voltage of 2.7V, 3.0V, 3.3V, 3.7V and 5.0V. CMOS technology ensures low supply current and makes them ideal for battery-operated applications powered from one or more cells. The HT77xxBA series consist of an o...