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
  • SC21154
  • Tiny 1.2A Synchronous Buck Regulator with Programmable Soft Start
  • SC221
  • 20MHz, 650mA, X-EMI™-Enabled Synchronous Step-Down Regulator
  • SC284A
  • Dual Channel 2.5MHz, 2.0A Synchronous Buck Regulator
  • SC284AQ
  • Dual Channel 2.5MHz, 1.7A Synchronous Buck Regulator
Semtech SC283

Semtech SC283

Dual Channel 2.5MHz, 1.8A Synchronous Step-Down Regulator

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The SC283 is a dual channel 1.8A synchronous step-down regulator designed to operate with an input voltage range of 2.9 to 5.5 Volts. Each channel offers fifteen pre-determined output voltages via four control pins programmable from 0.8 to 3.3 Volts.


  • VIN Range: 2.9 - 5.5V
  • VOUT Selectable: 0.8 - 3.3V
  • Up to 1.8A Output Current for Each Channel
  • Ultra-Small Footprint, <1mm Height Solution
  • 2.5MHz Switching Frequency
  • Efficiency Up to 93%
  • Low Output Noise Across Load Range
  • Excellent Transient Response
  • Start Up into Pre-Bias Output
  • 100% Duty-Cycle Low Dropout Operation
  • <1μA Shutdown Current
  • Internal Soft Start
  • Input Under-Voltage Lockout
  • Output Over-Voltage, Current Limit Protection
  • Over-Temperature Protection
  • Adjustable Output Voltage
  • 2mm x 3mm x 0.8mm thermally enhanced
  • MLPQ-W18 package
  • -40 to +85°C Temperature Range
  • Pb-Free product. RoHS/WEEE and Halogen Free compliant


  • Desktop Computing
  • Set-Top Box
  • LCD TV
  • Network Cards
  • Printer


  • MLPQ-W18

Order Codes

  • SC283WLTRT: Pb-Free product, RoHS/WEEE and Halogen Free compliant
  • SC283EVB: SC283 Evaluation Board
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