Switching Regulators
  • SC4524E
  • 28V 2A Step-Down Switching Regulator
  • SC4524F
  • 18V 2A Step-Down Switching Regulator
  • SC4525E
  • 28V 3A Step-Down Switching Regulator
  • SC4525F
  • 18V, 3A, 350kHz Step-Down Switching Regulator
  • SC1102
  • Synchronous Voltage-Mode Controller for Distributed Power-Supply Applications
  • SC1104B
  • Simple, Synchronous Voltage-Mode PWM Controller
  • SC1175
  • Low-Power Dual Synchronous DC/DC Controller with Current-Sharing Circuitry
  • SC1176A
  • Dual Synchronous Voltage-Mode Controller with Current-Sharing Circuitry
Semtech SC4525D

Semtech SC4525D

18V, 3A, 350kHz Step-Down Switching Regulator

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Not Recommended for New Designs, Recommended Replacement Part is SC4525FSETRT

The SC4525D is a 350kHz constant frequency peak current-mode step-down switching regulator capable of producing 3A output current from an input ranging from 3V to 18V. The SC4525D is suitable for next generation XDSL modems, high-definition TVs and various point of load applications.

To convert your designs from SC4525B, please refer to our

"SC4525A/B to SC4525C/D Design Guide"

Features


  • Input range: 3V to 18V
  • 3A Output Current
  • 350kHz Fixed Switching Frequency
  • Precision 1V Feedback Voltage
  • Peak Current-Mode Control
  • Cycle-by-Cycle Current Limiting
  • Hiccup Overload Protection with Frequency Foldback
  • Soft-Start and Enable
  • Thermal Shutdown
  • Thermally Enhanced 8-pin SOIC Package
  • Fully RoHS and WEEE compliant

Applications


  • XDSL and Cable Modems
  • Set Top Boxes
  • Point of Load Applications
  • CPE Equipment
  • DSP Power Supplies
  • LCD and Plasma TVs

Packaging

  • SOIC-8 EDP

Order Codes

  • SC4525DSETRT: (SOIC-8 EDP) Lead Free, WEEE and RoHS Compliant, Halogen-free, 2,500 pcs, Tape and Reel only.
  • SC4525DEVB: Evaluation Board
 
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