G2257 Overview
Description
The G2257 provide a complete power supply solution for handsets or data card. It contains four dc/dc converters, and one LDO to power each critical blocks of the system, and is optimized for maximum battery life, featuring a low ground current when in standby mode operation.
Key Features
- 2.7V ~ 5.5V Input Voltage Operation
- 95% Efficient DC/DC Converter
- Independent Enable Control
- Built-in 4-ch synchronous buck converter, and 1-ch LDO
- Bucks can be set to lower quiescent current at low load
- 180o Phase Shifted architecture
- Fixed 1.5MHz switching frequency
- Built-In Short Circuit Protection (SCP), Under Voltage Protection (UVP), and cycle-by cycle current limit for DC/DC Converters
- Built-In Thermal Shutdown Function
- Built-In VCC OVP Function
