MAX679 Datasheet (Maxim) - Regulated 3.3V Charge Pump

MAX679, Regulated 3.3V Charge Pump

The MAX679 step-up, regulated charge pump generates a 3.3V ±4% output voltage from a 1.8V to 3.6V input voltage (two alkaline, NiCd, or NiMH; or one Lithium-Ion battery).

Output current is 20mA (min) from a 2.0V input.

Only three external capacitors are needed to build a complete DC-DC converter.

MAX679 Features

* o Regulated 3.3V ±4% Output o Ultra-Small: 1.1mm-High, 8-Pin µMAX Package o No Inductors Required o Up to 1MHz Operation (small external components) o Fits into 0.05 in.2 o Up to 85% Efficiency o 1.8V to 3.6V Input Voltage Range o 50µA Quiescent Supply Current o 1µA Shutdown Current MAX679 _______