深圳市科瑞芯电子有限公司

科瑞芯电子供应G2257Q51U——台湾致新原厂原装G2257

General Description
The G2257Q51U 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. All channels DC/DC converters operate at 1.5MHz to optimize size, cost, and efficiency. All Synchronous converters are enabled by individual EN pin control and operate at pulse skipping mode at light load.
The G2257Q51U is available in QFN4X4-24 package.

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
■ QFN4X4-24 Package

Applications
■ Smart Phone
■ TV Dongle
■ OTT