G5125 台湾致新代理商 GMT DC-DC系列 升压转换器 G5125T11U
Micro-Power Boost DC/DC Converter

General Description
The  G5125  boost  converter  contains  a  0.7Ω  internal  switch.  The  IC  operates  at  constant  frequency  1MHz,  allowing  the  use  of  tiny,  low  cost  and  low  height  in-ductors  and  capacitors.  The  IC  operates  from  a  2.7V  to  5.5V  supply  voltage  and  can  boost  supply  voltage  up to 30V at the output. High inrush current at start-up is  eliminated  using  the  soft-start  function.  Constant  frequency  current  mode  PWM  architecture  results  in  low,  predictable  output  noise.  The  G5125  includes  cycle-by-cycle  850mA  current  limiting  to  maximum  inductor  current  and  over-temperature  protection  cir-cuit.  The  G5125  is  suitable  for  small  or  medium  size  LCD panel of high bias voltage with a constant current to  provide  PDAs,  and  other  portable  devices.  The  G5125 is available in SOT-23-5 package.

Features „
Operating Voltage：2.7V ~ 5.5V„
High Operating Frequency：1MHz
„Shutdown Current：＜1μA„
High Output Voltage：Up to 30V
„Soft Start Function„Cycle by
Cycle Current Limiting„
SOT-23-5 Package

Applications
„STN/OLED BIAS „
Personal Digital Assistants „
DSC

Ordering Information

Note: T1:  SOT-23-5 1 : Bonding Code U: Tape & Reel

Pin Configuration                                                                                        Typical Application Circuit

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