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
  • SC221
  • 20MHz, 650mA, X-EMI™-Enabled Synchronous Step-Down Regulator
  • SC284AQ
  • Dual Channel 2.5MHz, 1.7A Synchronous Buck Regulator
  • TS13101
  • Galvanic Isolated Latching 60V Power Load Switch
  • TS30011
  • High Efficiency 1A Current-Mode Synchronous Buck DC/DC Converter, 1MHz
Semtech SC4808B-1

Semtech SC4808B-1

High-Performance Dual Ended PWM Controller

Add to Watch List

The SC4808B-1 is a dual-ended, high frequency, integrated PWM controller, optimized for isolated applications that require minimum space. It can be configured for current or voltage mode operation with required control circuitry where secondary side error amplifier is used.


  • 120μA starting current
  • Pulse by pulse current limit
  • Programmable operation up to 1MHz
  • Internal soft start
  • Programmable line undervoltage lockout
  • Over current shutdown
  • Dual output drive stages on push-pull configuration
  • Programmable internal slope compensation
  • Programmable mode of operation (peak current mode or voltage mode)
  • External frequency synchronization
  • Bi-phase mode of operation
  • -40 to 105 °C operating temperature
  • MSOP-10 lead free package. This product is fully WEEE and RoHS compliant


  • Telecom equipment and power supplies
  • Networking power supplies
  • Industrial power supplies
  • Push-pull converter
  • Half bridge converter
  • Full bridge converter
  • Isolated VRM’s



Order Codes

  • SC4808B-1MSTRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
- 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.