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
    Radio and Cassette Recorder Ci
    Mouse&Keyboard Controller
    Transient Voltage Suppressors
    Sense Monitor
    Video Filter
    ZCB snubber
• Logic
    Power Mosfet
• SCRs
Home >
L1913 Datasheet


The UTC L1913 is a low supply current, low dropout linear
regulator. It is operating at 2.5V - 5.5V. The supply current is as low
as 55μA in the no–load condition. In the shutdown mode, the
maximum supply current is less than 1μA. 
A built-in over-temperature protection circuit is designed to protect
the device from being damaged by thermal overload. The
over-current protection limit is set at 250mA (TYP.) and 150mA (MIN.). 
The UTC L1913 can be operated on the following two modes.
When the SET pin is connected to ground, the output of L1913 is a
pre-set value and the external components are not needed to decide
the output voltage. When an output other than the preset value is
needed, two external resistors should be used as voltage dividers
and then the output voltage is decided by the resistor ratio.
The UTC L1913 is generally used in notebook computers, cellular
phones, PDAs, digital still camera and video recorders and other hand-held devices.

* Low No-Load Supply Current: 55µA  
* Guaranteed 150mA Output Current
* Dropout Voltage is 70mV @ 50mA Load
* OTP (Over-Temperature Protection) and Short-Circuit Protection
* Two Modes Of Operation:
Fixed Mode: 3.3V1.5V. 
Adjustable Mode: 1.25V - 5.5V
* Maximum Supply Current In Shutdown Mode is Less than 1µA
* Low Output Noise at 220µ VRMS
* Stability with Lost Cost Ceramic Capacitors
About us  |  Products  |  Contact us
Copyright 2011 UTC All received