SGM3803 Overview
Description
The SGM3803 is a constant frequency, current mode, synchronous step-up switching regulator with 200mA negative charge pump inverter which generates an unregulated negative output voltage from an input voltage ranging from 1.4V to 5.5V. The device is typically used to generate +5V and -5V from battery.
Key Features
- 90% Efficient Synchronous Boost Converter
- Device Quiescent Current: 30µA (TYP)
- Less than 1μA Shutdown Current
- Input Voltage Range: 2.7V to 5.5V
- Output Voltage Clamping: 6V
