G2257 Overview
The G2257 provide a plete 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. All channels DC/DC converters operate at 1.5MHz to optimize size, cost, and efficiency.
G2257 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
- Bucks can be set to lower quiescent current at
- 180o Phase Shifted architecture
- Fixed 1.5MHz switching frequency
- Built-In Short Circuit Protection (SCP), Under
- Built-In Thermal Shutdown Function
- Built-In VCC OVP Function