SC198A: Dual DC-DC Buck Converter with High Current Capability

The SC198A is a dual high-efficiency synchronous buck converter designed for use in low power applications. Each converter is capable of supplying up to 800mA of average current at one of eight programmable output voltages used as microprocessor supply voltages.


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Features

  • Input voltage range — 2.7V to 5.5V
  • Dual buck converters with independent control
  • High effi ciency — over 90% peak
  • Up to 800mA Load
  • Programmable output voltages per channel — 8
  • Fixed-frequency operation — 1MHz
  • Optional SYNC clock input
  • Optional power-save under light-load conditions
  • Shutdown current <1μA
  • Soft-start to limit in-rush current
  • 4mm x 4mm MLPQ package

Diagrams

Typical Application Circuit

SC198A - Typical Application Circuit

Click diagram to enlarge

Applications

  • Mobile phones
  • Cordless phones
  • MP3 players
  • Digital cameras
  • PDAs
  • Single Li-Ion cell or (3) NiMH/NiCd cell devices
  • Digital multimedia broadcast (DMB) devices
  • Portable gaming systems

Packaging

MLPQ-20

Order Codes

  • SC198AMLTRT: Lead-free, RoHS and WEEE compliant, 3000 pcs. Tape & Reel
Order Sample Button
Pb-Free/RoHS/WEEE Status

Related Documents

Datasheets