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 > Step Down Switching Regulators
P1580 Datasheet



The UTC P1580 is a current mode, PWM controller with 380kHz
fixed frequency. It achieves 2.5A continuous output current over a
wide input supply range with excellent load and line regulation. By
using an external compensation pin, this device offers user flexibility
in determining loop dynamic.
The UTC P1580 integrates control, monitor and protection
functions to provide a low cost and perfect power solution. The
device provides 3.5 to 28V wide range operating input and high-efficiency up to 90%.
An Under- Voltage-Lock-Output (UVLO) circuit monitors the
supply voltage to prevent from wrong logic control. An internal
1.222V reference voltage provides low output voltage down to 1.22V
for further applications. The over-current protection of controller
monitors the output current by using the voltage drop across a
current sensing resistor. Additional under voltage protection monitors
the voltage on FB pin for short-circuits protection.
The UTC P1580 provides fast transient response and requires  very few external devices for operation.

* 2.5A Output Current
* 380kHz Frequency of Operation
* 3.5V to 28V Input Voltage Range
* 5μA Shutdown Supply Current
* Output Adjustable From 1.22 to 21
* Frequency Feedback at Short Circuit
* Thermal Shutdown
* Under Voltage Lock Output
* Current Mode With Low ESR Output Ceramic Capacitors
* Up to 90% Efficiency
* Frequency Synchronization Input  
About us  |  Products  |  Contact us
Copyright 2011 UTC All received