PWM Controllers
  • SC1102
  • Synchronous Voltage-Mode Controller for Distributed Power-Supply Applications
  • SC1103
  • Asynchronous Voltage-Mode PWM Controller for 12 V Input
  • SC1104A
  • Not Recommended For New Designs
  • SC1104B
  • Simple, Synchronous Voltage-Mode PWM Controller
  • SC1109
  • Synchronous PWM Controller With Dual Low-Dropout Regulator Controllers
  • SC1110
  • Sink and Source DC/DC Controller For Termination Power Supply Applications
  • SC1116
  • Linear FET Controller for DDR Supplies
  • SC1175
  • Low-Power Dual Synchronous DC/DC Controller with Current-Sharing Circuitry
Semtech SC2542

Semtech SC2542

High Performance Wide Input RangeDual Synchronous Buck Controller

Add to Watch List

SC2542 is a high performance dual PWM controller. It is designed to convert a widely ranged battery rail down to two independent output rails. The PWM operation of the two channels are 180 degrees out of phase which can greatly reduce the size and the cost of the input capacitors.


  • Independent dual-switcher-outputs
  • Integrated 5V standby output with over 50mA capability
  • Wide input voltage range: 6.5V ~ 28V
  • Adjustable output voltage down to 0.75V
  • Light load efficiency enhancement
  • Programmable skip mode operation
  • Flexible power sequencing with enable and power good output
  • Synchronous buck topology with voltage mode control
  • Out of phase operation to reduce cost of input capacitor
  • 10V internal regulator for gate driver to deliver high efficiency
  • Programmable switching frequency: 100KHz ~ 300KHz
  • Full protection: UVLO, OVP, and programmable OCP
  • No need for current sense resistor
  • Low standby operating current (200μA typical)
  • Low shut down current (100nA typical)
  • 28 lead TSSOP package with exposed die pad (EDP)
  • Fully WEEE package and RoHS Compliant


  • Notebook computer system power
  • Systems with 6.5V ~ 28V input
  • Network and telecom systems
  • Other portable devices



Order Codes

  • SC2542TETRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
  • SC2542EVB: SC2542 Evaluation Board
- 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.