Press Center
 
Home About us Products Support Quality & Certification Career Contact us
• Power Management
    Linear Regulators
    Low Dropout Linear Regulators
    DDR Termination Regulators
    Shunt Reference Regulators
    Step Down Switching Regulators
    Switching Regulator
    Step-Up DC-DC Converter
    PWM Controller
    White LED Driver
    Supervisory Circuit
    Voltage Detection and System R
    USB Power Switch
    Power Factor Control
    Li-Battery Protection or Charg
    FET Bias Controllers
    Combo IC
    Inverting DC-DC Converter
• Amplifier / Comparator
    Audio Amplifiers
    Operational Amplifier
    Voltage Comparator
• Analog Switches
    Video Signal Switch
    Analog Multiplexers, Demultipl
• Hall ICs
• Special Application ICs
    Motor Controller IC
    Interface and Driver Circuit
    Telecommunication Circuit
    Melody IC
    Alarm /Sound Generator IC
    Remote Controller IC
    Television Circuit
    Leakage Current Detector
    Automotive IC
    A-D or D-A Converters
    Miscellaneous
    Radio and Cassette Recorder Ci
    Timer
    Mouse&Keyboard Controller
    Transient Voltage Suppressors
    Sense Monitor
    Video Filter
    ZCB snubber
• Logic
• TRANSISTORs
• MOSFETs
    JFET
    Power Mosfet
• TRIACs
• SCRs
• DIODEs
 
Home >
LR1125 Datasheet

 
500mA, low-voltage linear regulator
 


 
DESCRIPTION
 
The UTC LR1125 is a positive LDO (voltage linear regulator)
operates from a 2.25V ~ 5.5V supply and delivers a guaranteed
500mA load current with low 175mV dropout. Low dropout voltage
and large output current can be provided by built-in low
on-resistance transistor. Because an internal PMOS pass transistor
allows low 210μA supply current, the LR1125 can be ideal for
portable equipment such as PDAs, cellular phones, cordless
phones, and other equipments including base stations and docking
stations. It also includes an active-low, power-OK output that mean
a 0.02μA shutdown mode, short-circuit protection and
thermal-shutdown protection when the output is out of regulation.
 
FEATURES
 
 
* Low Dropout : 175mV Dropout at 500mA
* High accuracy output voltage: +/- 1.5%
* Guaranteed Output:500mA
* Thermal-Overload Protection
* Internal Current Limiting
* Low 210μA Ground Current
* 0.02μA Shutdown Current
* VOUT Can Be Adjusted From 0.8V ~ 4.5V
About us  |  Products  |  Contact us
Copyright 2011 UTC All received