PWM Controllers
  • SC508A
    • EcoSpeed® DC-DC Buck Controller with Integrated LDO
  • SC508
    • EcoSpeed® DC-DC Buck Controller with Integrated LDO
  • SC493
    • EcoSpeed® Step-down Controller with I2C Interface
  • SC419
    • Single Phase DC-DC Converter with Integrated Boost Diode
  • SC418
    • EcoSpeed® DC-DC Buck Controller with Programmable LDO
  • SC4911
    • Bias/Primary Side PWM Controller with Ultra-Low Start-up Current
  • SC4910B
    • High-Performance Secondary Side Controller with Synchronous Rectifier
  • SC4910A
    • High-Performance Secondary Side Controller with Synchronous Rectifier
Semtech SC4808B-2

Semtech SC4808B-2

High-Performance Dual Ended PWM Controller

The SC4808B-2 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.

Features


  • 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

Applications


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

Packaging

MSOP-10

Order Codes

  • SC4808B-2MSTRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only