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 SC191

Semtech SC191

Low Supply Ripple Synchronous Buck Conversion Regulator

The SC191 is a synchronous step-down converter with integrated power devices and an integrated front-end LDO regulator to minimize input supply ripple. If supply ripple is not a concern, the front-end LDO regulator can be bypassed externally to maximize efficiency.

Features


  • Less than 1mV Supply Ripple
  • 2.7V to 5.5V Input Range
  • 330mA Guaranteed Output Current
  • Fixed Frequency 1MHz Operation
  • No Schottky Diode Required
  • Over-Current Protection
  • Over-Voltage Protection
  • Over-Temperature Protection
  • Soft-Start
  • No External Compensation Required
  • MLPD-8, 2.3mm x 2.3mm Package
  • WEEE and RoHS Compliant

Applications


  • Cell Phones
  • Cordless Phones
  • Notebook and Subnotebook Computers
  • PDAs and Mobile Communicators
  • WLAN Peripherals
  • Wireless Modules
  • 1 Li-Ion or 3 NiMH/NiCd Powered Devices

Packaging

MLP-8

Order Codes

  • SC191AWLTRT: RoHS and WEEE compliant, 3000 pcs. Tape & Reel