Switching Regulators
  • SC195F
  • 3.5MHz, 500mA Synchronous Step Down DC-DC Regulator
  • SC202F
  • 3.5MHz, 500mA Step-down Regulator with Integrated Inductor
  • SC21150
  • Tiny 1.2A Synchronous Buck Regulator
  • SC21152
  • Tiny 1.2A Synchronous Buck Regulator with Power Good
  • SC21154
  • Tiny 1.2A Synchronous Buck Regulator with Programmable Soft Start
  • SC221
  • 20MHz, 650mA, X-EMI™-Enabled Synchronous Step-Down Regulator
  • SC284A
  • Dual Channel 2.5MHz, 2.0A Synchronous Buck Regulator
  • SC284AQ
  • Dual Channel 2.5MHz, 1.7A Synchronous Buck Regulator
Semtech SC194B

Semtech SC194B

Selectable 3.6V/3.3V/3.0V/2.5V 1A Synchronous Buck Converter

Add to Watch List

The SC194B is a synchronous step-down converter with integrated power devices. Four selectable output voltages suitable for portable device interface, memory function blocks, and 5V to 3.3V voltage conversion are available.


  • Up to 95% efficiency
  • PSAVE operation to maximize efficiency
  • Output current — 1A
  • Input range — 2.7V to 5.5V
  • Four selectable output voltages
  • Quiescent current — 17μA in PSAVE
  • Dynamic voltage positioning capability
  • Fixed 1MHz frequency or 750kHz to 1.25MHz synchronized operation
  • Current mode operation for excellent line and load transient response
  • 100% duty cycle in dropout
  • Soft-start
  • Over-temperature and short-circuit protection
  • Lead-free package — 3mm x 3mm MLPD


  • PDA
  • Pocket PC and Smart Phones
  • USB Powered Modems
  • CPUs and DSPs
  • PC Cards and Notebooks
  • xDSL Applications
  • Standard 5-V to 3.3-V Conversion



Order Codes

  • SC194BMLTRT: Lead-Free, RoHS and WEEE Compliant, 3000 pcs.Tape & Reel
- Close -
Add Product to Watch List

Please login to the mySemtech member site to add products to your personal Watch List.

If you're not registered for mySemtech, please Register now. mySemtech member benefits include pre-filled forms for quick and easy online ordering, technical support, new product information and more.