Switching Regulators
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  • 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 SC4525E

Semtech SC4525E

28V 3A Step-Down Switching Regulator

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The SC4525E is a constant frequency peak current-mode step-down switching regulator capable of producing 3A output current from an input ranging from 3V to 28V. The switching frequency of the SC4525E is programmable up to 2MHz, allowing the use of small inductors and ceramic capacitors for miniaturization, and high input/output conversion ratio. The SC4525E is suitable for next generation XDSL modems, high-definition TVs and various point of load applications.

To convert your designs from SC4525C/D, please refer to our

"Converting SC4525C/D to SC4525E/F Application Note"

Features


  • Wide input range: 3V to 28V
  • 3A Output Current
  • 200kHz to 2MHz Programmable 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

  • SC4525ESETRT: (SOIC-8 EDP) Lead Free, WEEE and RoHS Compliant, Halogen-free, 2,500 pcs, Tape and Reel only.
  • SC4525EEVB: Evaluation Board
 
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