深圳市科瑞芯电子有限公司

台湾致新 G2237K11U TQFN4x4-32 代理商主推

General Description
The G2237 provide a complete power supply solution
for handsets or data card. It contains 5 dc/dc
converters and 1 LDO to power each critical blocks of
mobile phone, and is optimized for maximum battery
life, featuring a low ground current when in standby
mode operation. All channels DC/DC converters
operate at one fixed frequency of 3.0MHz to optimize
size, cost, and efficiency. All Synchronous converters
operate at pulse skipping mode at light load. The
G2237 features a I2C compatible interface.
The G2237 is available in TQFN4X4-32 package.

G2237K11U应用原理图：

Features
3.0V ~ 5.5V Input Voltage Operation
95% Efficient DC/DC Converter
Built-in 5-ch synchronous buck converter, 1-ch
LDO
Bucks and LDO can be set to lower IQ at low
load
Buck2 and Buck3 Support DVS Function,
12.5mV/step
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
LDO is Programmable to Voltage Options by I2C
Built-In Thermal Shutdown Function
Built-In VCC OVP Function
TQFN4X4-32 Package

Applications
Mobile Handsets
TV Dongle
Smart Phone
Set Top Box