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FULL DATA SHEET (PDF, 67kB) Download   E-Mail The MAX619 step-up charge-pump DC-DC converter delivers a regulated 5V ±4% output at 50mA over temperature. The input voltage range is 2V to 3.6V (two battery cells). The complete MAX619 circuit fits into less than 0.1in² of board space because it requires only four external capacitors: two 0.22µF flying capacitors, and 10µF capacitors at the input and output. Low operating supply current (150µA max) and low shutdown supply current (1µA max) make this device ideal for small, portable, and battery-powered applications. When shut down, the load is disconnected from the input. The MAX619 is available in 8-pin DIP and SO packages.

Key Features		Applications/Uses
Regulated 5V ±4% Charge Pump Output Current Guaranteed over Temperature 20mA (VIN ≥ 2V) 50mA (VIN, ≥ 3V) 2V to 3.6V Input Range No Inductors; Very Low EMI Noise Ultra-Small Application Circuit (0.1in²) Uses Small, Inexpensive Capacitors 500kHz Internal Oscillator Logic-Controlled 1µA Max Shutdown Supply Current Shutdown Disconnects Load from Input 8-Pin DIP and SO Packages		5V Flash Memory Programmer Battery-Powered Microprocessor-Based Systems Compact 5V Op-Amp Supply Local 3.3V to 5V Conversion Minimum Component DC-DC Converters Portable Instruments and Handy-Terminals Regulated 5V Supply from Lithium Backup Battery Remote Data-Acquisition Systems Switching Drive Voltage for MOSFETs in Low-Voltage Systems Two Battery Cells to 5V Conversion

Diagram

Typical Operating Circuit

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