PWM Controllers
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  • SC418
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  • SC4911
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  • SC4910B
  • High-Performance Secondary Side Controller with Synchronous Rectifier
  • SC4910A
  • High-Performance Secondary Side Controller with Synchronous Rectifier
  • SC4905B
  • High-Performance Voltage-Mode PWM Controller
  • SC4905A
  • High-Performance Voltage-Mode PWM Controller
Semtech SC1470

Semtech SC1470

Not Recommended for New Designs - Last Day of purchase: 5/1/11

Features


  • Constant on-time for fast dynamic response
  • Programmable VOUT range = 0.5 – VCCA
  • VIN range = 1.8 V – 25 V
  • DC current sense using low-side RDS(ON) Sensing or RSENSE in source of low-side MOSFET for greater accuracy
  • Resistor programmable frequency
  • Cycle-by-Cycle current limit
  • Digital soft-start
  • Combined EN and PSAVE functions
  • Over-voltage/under-voltage fault protection and PGOOD output
  • 5 µA typical shutdown current
  • Low quiescent power dissipation
  • Industrial temperature range
  • 1% Internal reference
  • Integrated gate drivers with soft switching
  • Efficiency > 90%
  • 14-lead TSSOP package

Applications


  • Notebook computers
  • CPU I/O supplies
  • Handheld terminals and PDAs
  • LCD monitors
  • Network power supplies

Packaging

TSSOP-14

Order Codes

  • SC1470ITSTR: Package Minimum Tape & Reel Only
  • SC1470ITSTRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only