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 SC1104B

Semtech SC1104B

Simple, Synchronous Voltage-Mode PWM Controller

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The SC1104A/B is a versatile voltage-mode PWM controller designed for use in single ended DC/DC power supply applications. A simple, fixed frequency high efficiency buck regulator can be implemented using the SC1104A/B with a minimum of external components. Internal level shift and drive circuitry eliminates the need for an expensive P-channel, high-side switch. The small device footprint allows for compact circuit design.


  • Up to +14 V input, 300 kHz operation (SC1104A)
  • Up to +7 V input, 600 kHz operation (SC1104B)
  • High efficiency (> 90%)
  • 1% reference voltage accuracy
  • Hiccup mode over-current protection
  • Robust output drive
  • RDS(ON) Current sensing
  • Industrial temperature range
  • 8-Lead SOIC package. Pb-free package available, fully WEEE and RoHS compliant


  • Termination supplies
  • Low-cost microprocessor supplies
  • Peripheral card supplies
  • Industrial power supplies
  • High-density DC/DC conversion



Order Codes

  • SC1104BISTR: Package Minimum Tape & Reel Only
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