信息类型：供应

Features

• 
  3.0V ~ 5.5V Input Voltage Operation
  


• 
  95% Efficient DC/DC Converter
  


• 
  Built-in 7-ch synchronous buck converter, 3-ch LDOs
  


• 
  Bucks and LDOs can be set to lower IQ at low load
  


• 
  Buck2, Buck3, Buck5 and Buck6 Supports DVS Function
  


• 
  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
  


• 
  LDOs are Programmable to Voltage Options by I2C
  


• 
  Built-In Thermal Shutdown Function
  


• 
  Built-In VCC OVP Function
  


• 
  TQFN5X5-40 Package
  

General Description
The G2249 provide a complete power supply solution
for handsets or data card. It contains 7 dc/dc
converters and 3 LDOs 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 or 1.5MHz
to optimize size, cost, and efficiency. All Synchronous
converters operate at pulse skipping mode at light load.
The G2249 features a I2C compatible interface.
The G2249 is available in TQFN5X5-40 package.

Applications
Mobile Handsets
TV Dongle
Smart Phone
Set Top Box