MAX1643 Datasheet | Maxim Integrated

19-1183; Rev 0; 6/97 ANUAL N KIT M EET IO T A U EVAL TA SH WS DA FOLLO High-Efficiency, Step-Up DC-DC Converters for 1V Inputs ____________________________Features o Built-In Synchronous Rectifier o 0.88V Guaranteed Start-Up o Ultra-Small µMAX Package: 1.1mm High o 83% Efficiency o 4µA Quiescent Supply Current into BATT Pin o 2µA Logic-Controlled Shutdown (MAX1642) o Two Undervoltage Detectors (MAX1643) o 2V to 5.2V Output Range o 20mA Output Current at 1.2V Input o Reverse Battery Protection _______________General Description The MAX1642/MAX1643 are high-efficiency, low-voltage, step-up DC-DC converters intended for devices powered by a single alkaline cell. They feature low quiescent...