深圳市科瑞芯电子有限公司

GMT致新 G2253RV1U TQFN4x4-28 22+ 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.

G2253RV1U原理图：

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