Switching Regulators
  • SC4525D
    • 18V, 3A, 350kHz Step-Down Switching Regulator
  • SC4525C
    • 28V 3A Step-Down Switching Regulator
  • SC4524D
    • 18V 2A Step-Down Switching Regulator
  • SC4524C
    • 28V 2A Step-Down Switching Regulator
  • SC427
    • 10A EcoSpeed® Integrated FET Regulator with Programmable LDO
  • SC417
    • 10A EcoSpeed® Integrated FET Regulator with Programmable LDO
  • SC410
    • 3A, 24V EcoSpeed® Step-Down Regulator with LDO and Ultrasonic Power Save
  • SC403B
    • 6A EcoSpeed® Integrated FET Regulator with Programmable LDO
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
  • SC4502EVB: SC4502 Evaluation Board