General Description
The MAX1795/MAX1796/MAX1797 are high-efficiency, step-up DC-DC converters intended for small portable hand-held devices. These devices feature Maxim’s True Shutdown™ circuitry, which fully disconnects the output from the input in shutdown, improves efficiency, and eliminates costly external components. All three devices also feature Maxim’s proprietary LX-damping circuitry for reduced EMI in noise-sensitive applications. For additional in-system flexibility, a battery monitoring comparator (LBI/LBO) remains active even when the DC-DC converter is in shutdown.

Features
● > 95% Efficiency
● True-Shutdown Circuitry
    • Output Disconnects from Input in Shutdown
    • No External Schottky Diode Needed
● 25μA Quiescent Supply Current
● Low-Noise Antiringing Feature
● LBI/LBO Comparator Enabled in Shutdown
● 2μA Shutdown Current
● 8-Pin μMAX Package

Applications
● Portable Digital Audio Players
● PDAs/Palmtops
● Wireless Handsets
● Portable Terminals