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MAX1642

Maxim
Part Number MAX1642
Manufacturer Maxim
Description High-Efficiency / Step-Up DC-DC Converters for 1V Inputs
Published May 6, 2005
Detailed Description 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 1...
Datasheet PDF File MAX1642 PDF File

MAX1642
MAX1642

Overview
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 supply currents and are supplied in the ultra-small µMAX package, which is only 1.
1mm high.
The guaranteed start-up voltage is 0.
88V.
Each device consists of an internal 1 Ω , N-channel MOSFET power switch; a built-in synchronous rectifier that acts as the catch diode; an oscillator; a reference; and ...


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