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
  • 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 SC190

Semtech SC190

Synchronous Buck Converter with Programmable Output

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The SC190 is a synchronous step-down converter with integrated power devices and an integrated front-end LDO to minimize input supply ripple. Output voltage is programmable using two control bits, eliminating the need for feedback resistors tied to the output. The device is offered in four distinct variants with each variant providing four fixed output voltage options to choose from.


  • Less than 1mV Supply Ripple
  • Output Voltage Regulated by Either the Switching Regulator or Linear Regulator
  • Dynamic Handover Between Linear and Switching Regulator for Maximum Efficiency
  • 2.7V to 5.5V Input Range
  • 300mA Guaranteed Output Current
  • 10µA quiescent current at light loads
  • Fixed Frequency 1MHz Operation or 750kHz to 1.5MHz Clocked Operation
  • No Schottky Diode Required
  • Up to 95% Efficiency (VIN=BP)
  • Over-current Protection
  • Over-voltage Protection
  • Over-temperature Protection
  • Soft Start
  • Low Output Noise < 100µVrms
  • MLP-10, 3 x 3mm Lead-frame, Lead-free Package


  • Cell Phones
  • Cordless Phones
  • Notebook and Subnotebook Computers
  • PDAs and Mobile Communicators
  • WLAN Peripherals
  • 1 Li-Ion or 3 NiMH/NiCd Powered Devices



Order Codes

  • SC190AIMLTRT: Lead-free, RoHS and WEEE compliant, 3000 pcs. Tape & Reel
  • SC190BIMLTRT: Lead-free, RoHS and WEEE compliant, 3000 pcs. Tape & Reel
  • SC190CIMLTRT: Lead-free, RoHS and WEEE compliant, 3000 pcs. Tape & Reel
  • SC190DIMLTRT: Lead-free, RoHS and WEEE compliant, 3000 pcs. Tape & Reel
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