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 > Low Dropout Linear Regulators
LXXLD50 Datasheet


The UTC LXXLD50 is a 5A ultra low dropout linear regulator
providing designers with well supply voltage for applications of NB and
front-side-bus termination on motherboards.
A control voltage for the circuitry and a main supply voltage for
power conversion are needed as supply voltages to reduce power
dissipation and provide extremely low dropout.
The UTC LXXLD50 contains some function circuits. A Power-On-
Reset (POR) circuit monitors both supply voltages to prevent undesired
operations. A thermal shutdown and current limit circuits prevent this
device from being damaged due to thermal and current over-loads. A
POK indicates the output status with a pre-set time delay. It can control
other converter for power sequence. The UTC LXXLD50 can be
enabled by other power system. Pulling and holding the EN pin below 0.3V shuts off the output.
 The UTC LXXLD50 is ideal for applications,such as front side bus VTT (1.2V/5A), note book PC applications,
and motherboard applications. 

* Low Dropout VD=0.2V(Typ.)@ IOUT=5A
* Low ESR Output Capacitor
* VREF=0.8V
* High Output Accuracy : ±1.5% Over Line, Load and Temperature
* Fast Transient Response
* 1.2V, 1.5V, 1.8V, 2.5V Output Options by Connecting ADJ to GND and Output Voltage can be Adjusted by External Resistors
* Power-On-Reset Monitoring both Supply Voltages ( VCNTL and VIN Pins)  
* Protection function:   Internal Soft-Start  
Current-Limit Protection
Under-Voltage Protection
Thermal Shutdown with Hysteresis
Over-Voltage Protection
* Power-OK Output with a Delay Time
* Shutdown for Standby or Suspend Mode
* Lead Free Available (RoHS Compliant)
About us  |  Products  |  Contact us
Copyright 2011 UTC All received