19-1198; Rev 0; 4/97
1- to 3-Cell, High-Current, Low-Noise, Step-Up DC-DC Converters with Linear
Regulator
_______________General Description
The MAX1705/MAX1706 are high-efficiency, low-noise, step-up DC-DC converters with an auxiliary linear
regulator output.
These devices are intended for use in battery-powered wireless applications.
They use a synchronous rectifier pulse-width-modulation (PWM) boost topology to generate 2.
5V to 5.
5V outputs from battery inputs, such as 1 to 3 NiCd/NiMH cells or 1 Li-Ion cell.
The MAX1705 has an internal 1A N-channel MOSFET switch.
The MAX1706 has a 0.
5A switch.
Both devices also have a built-in low-dropout linear
regulator that delivers up to 200mA.
With...