Switching Regulators
  • SC417
    • 10A Integrated FET Regulator with Programmable LDO and Selectable Ultrasonic Power-Save
  • SC427
    • 10A Integrated FET Regulator with Programmable LDO and Selectable Regular Power-Save
  • SC122
    • Low Voltage Synchronous Boost Converter
  • SC121
    • Low Voltage Synchronous Boost Regulator
  • SC561
    • Dual Output Low Noise LDO Linear Regulator
  • SC810
    • Single Input/Single Mode Single-cell Li-ion Battery Charger
  • SCDAS4F
    • Standard Recovery, High Current Center Tap and Doubler Rectifier Assemblies
Semtech SC4502

Semtech SC4502

1.4 Amp, 2 MHz Boost Switching Regulator with Soft-Start

The SC4502 is a high-frequency current-mode step-up switching regulator with an integrated 1.4A power transistor. Its high switching frequency (programmable up to 2MHz) allows the use of tiny surface-mount external passive components. Programmable soft-start eliminates high inrush current during start-up.

Features


  • Low saturation voltage switch: 210mV (250mV for the SC4502H)
  • Constant switching frequency current-mode control
  • Programmable switching frequency up to 2 MHz
  • Soft start function
  • Input voltage range from 1.4 V to 16 V
  • Output voltage up to 32V (40V for the SC4502H)
  • Low shutdown current
  • Adjustable under-voltage lock-out threshold
  • Small low-profile thermally-enhanced MLPD-10 package

Applications


  • Flat screen LCD bias supplies
  • TFT bias supplies
  • XDSL power supplies
  • Medical equipment
  • Digital video cameras
  • Portable devices
  • White LED power supplies

Packaging

MLPD-10

Order Codes

  • SC4502MLTRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only