深圳市科瑞芯电子有限公司

GMT致新 G2253RV1U TQFN4x4-28 24+ 现货

General Description
The G2253 provide a complete power supply solution for wearable / sports-cam & IP-CAM application. It contains four dc/dc converters, one power switch and one low quiescent current 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 selectable frequency of 1.5/3.0MHz to optimize size, cost, and efficiency. All Synchronous converters operate at pulse skipping mode at light load.
The G2253 is available in TQFN4x4-28 package.

Features
■ 2.8V ~ 5.5V Input Voltage Operation
■ 95% Efficient DC/DC Converter
■ Built-in 4-ch synchronous buck converter, 1-ch power switch, and 1-ch low quiescent current LDO for RTC
■ Bucks can be set to lower quiescent current at low load
■ Low Power consumption (Sleep Mode) < 20μA
■ 1.5/ 3MHz switching frequency
■ Built-In Power ON/OFF Sequence for PMU
■ Built-In Short Circuit Protection (SCP), Under Voltage Protection (UVP), and cycle-by cycle current limit for DC/DC Converters
■ Real Time Clock
■ Built-In Thermal Shutdown Function
■ Built-In VCC OVP Function
■ TQFN4x4-28 Package

Applications
■ Wearable/Sports camera
■ IP camera
■ DSC

G2253RV1U原理图