PWM Controllers
  • SC508A
    • EcoSpeed® DC-DC Buck Controller with Integrated LDO
  • SC508
    • EcoSpeed® DC-DC Buck Controller with Integrated LDO
  • SC493
    • EcoSpeed® Step-down Controller with I2C Interface
  • SC419
    • Single Phase DC-DC Converter with Integrated Boost Diode
  • SC418
    • EcoSpeed® DC-DC Buck Controller with Programmable LDO
  • SC4911
    • Bias/Primary Side PWM Controller with Ultra-Low Start-up Current
  • SC4910B
    • High-Performance Secondary Side Controller with Synchronous Rectifier
  • SC4910A
    • High-Performance Secondary Side Controller with Synchronous Rectifier
Semtech SC1185A

Semtech SC1185A

Programmable Synchronous DC/DC Converter, Dual LDO Controller

The SC1185 combines a synchronous voltage mode controller with two low-dropout linear regulators providing most of the circuitry necessary to implement three DC/DC converters for powering advanced microprocessors such as Pentium® II .

Features


  • SC1185A provides improved output tolerance over SC1185
  • Synchronous design, enables no-heatsink solution
  • 95% efficiency (switching section)
  • 5-bit DAC for output programmability
  • On-chip power-good function
  • Designed for Intel Pentium® II requirements
  • 1.5 V, 2.5 V @ 1.25% for linear section
  • 1.265 V ± 1.5% reference available
  • 24-lead SO package. Lead free option available. Lead free product is fully WEEE and RoHS compliant.

Applications


  • Pentium® II microprocessor supplies
  • Flexible motherboards
  • 1.3 V – 3.5 V microprocessor supplies
  • Programmable triple power supplies

Packaging

SOIC-24

Order Codes

  • SC1185ACSW.TR: 1,000 pcs. Tape & Reel
  • SC1185ACSW.TRT: Lead-Free, RoHS and WEEE Compliant, 1000 pcs. Tape & Reel Only