Switching Regulators
  • SC120
    • Low Voltage Synchronous Boost Converter
  • SC183C
    • 2.5MHz, 2A Synchronous Step-Down Switching Regulator
  • SC189
    • 2.5MHz, 1.5A Synchronous Step Down Switching Regulator in MLPD2X2
  • SC417
    • 10A Integrated FET Regulator with Programmable LDO and Selectable Ultrasonic Power-Save
  • SC427
    • 10A Integrated FET Regulator with Programmable LDO and Selectable Regular Power-Save
  • SC561
    • Dual Output Low Noise LDO Linear Regulator
  • SC810
    • Single Input/Single Mode Single-cell Li-ion Battery Charger
  • SCDAS4F
    • Standard Recovery, High Current Center Tap and Doubler Rectifier Assemblies
Semtech SC1104B

Semtech SC1104B

Simple, Synchronous Voltage-Mode PWM Controller

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.

Features

  • 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

Applications

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

Packaging

SOIC-8

Order Codes

  • SC1104BISTR: Package Minimum Tape & Reel Only