SC2677: Dual Synchronous Voltage-Mode Controller with Current-Sharing Circuitry

• 300 kHz to 1 MHz externally-programmable frequency operation
• Soft start and enable function
• Power-good output provided
• Under-voltage short-circuit protection
• Phase-shifted switchers minimize ripple
• High efficiency operation, >90%
• Programmable output(s) as low as 0.5 V
• Industrial temperature range
• TSSOP-20 package
• Bias voltage as low as 4.5 V
• Adjustable phase shift between channels
• 2-phase, current-sharing controller
  • Flexible, same or separate V_IN
  • Programmable current sharing
  • Thermal distribution via multi-phase output

Typical Application Circuit

Click diagram to enlarge

• Graphics cards
• Peripheral add-in cards
• Dual-phase power supplies
• Power supplies requiring two outputs

TSSOP-20

• SC2677TSTRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only