PWM Controllers
  • SC2604
    • Simple PWM Boost Controller with Input Disconnect FET Drive
  • SC418
    • DC-DC Buck Controller with Programmable LDO
  • SC419
    • Single Phase DC-DC Converter with Integrated Boost Diode
  • SC454
    • Single-Phase Single Chip IMVP-6/6+ Vcore Power Supply
  • SC824
    • Single-cell Li-Ion Charger Tri-Mode with Timer and NTC
  • SCPAS1
    • Standard Recovery, High Current Center Tap and Doubler Rectifier Assemblies
  • SDH15K
    • High Density, High Voltage, Standard Recovery Rectifier Assembly
Semtech SC1104A

Semtech SC1104A

Not Recommended For New Designs

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

Order Codes

  • SC1104AISTR: Package Minimum Tape & Reel Only
  • SC1104AISTRT: RoHS Compliant, Package Minimum Tape & Reel Only
  • SC1104BISTR: Package Minimum Tape & Reel Only