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 > Step Down Switching Regulators
UD38251 Datasheet
 38V SYNCHRONOUS BUCK CONVERTER

 

 

 

DESCRIPTION

 

The UTC UD38251 is a monolithic synchronous buck regulator.

The device integrates two internal power MOSFETs, and provides

2.5A of continuous load current over a wide input voltage of 8V to

38V. Current mode control provides fast transient response and

cycle-by-cycle current limit.

An internal soft-start prevents inrush current at turn-on, provides

a very compact solution with minimal external components.

 

 

FEATURES

 

* Wide 8V to 38V Operating Input Range

* Integrated 140m Power MOSFET Switches

* Output Adjustable from V FB  (1.00V+ 2%) to 20V

* Up to 93% Efficiency

* Internal Soft-Start

* Stable with Low ESR Ceramic Output Capacitors

* Fixed 160KHz Frequency

* Cycle-by-Cycle Over Current Protection

* Input Under/Over Voltage Lockout 

About us  |  Products  |  Contact us
Copyright 2011 UTC All received