Switching Regulators
  • SC427
    • 10A EcoSpeed™ Integrated FET Regulator with Programmable LDO
  • SC417
    • 10A EcoSpeed™ Integrated FET Regulator with Programmable LDO
  • SC403
    • 6A EcoSpeedTM Integrated FET Regulator with Programmable LDO
  • SC283
    • Dual Channel 2.5MHz, 1.8A Synchronous Step-Down Regulator
  • SC185
    • 4A Synchronous Step-Down Regulator
  • SC174
    • 4A EcoSpeed™ Synchronous Step-Down Regulator with Optional Ultrasonic Power Save
  • SC173
    • 3A EcoSpeed™ Synchronous Step-Down Regulator with Optional Ultrasonic Power Save
  • SC122
    • Low Voltage Synchronous Boost Converter
  • SC561
    • Dual Output Low Noise LDO Linear Regulator
  • SC810
    • Single Input/Single Mode Single-cell Li-ion Battery Charger
  • SC658
    • Charge Pump LED Driver for 4BL + SemPulse Interface
Semtech SC1211

Semtech SC1211

High-Speed Combi-Sense™ Synchronous MOSFET Driver

The SC1211 is a high speed, Combi-Sense, dual output driver designed to drive high-side and low-side MOSFETs in a synchronous Buck converter. These drivers combined with Combi-Sense PWM controllers, such as Semtech SC2643VX or SC2643, provide a cost effective multi-phase voltage regulator for advanced microprocessors.

Features


  • High efficiency
  • +12V supply voltage with internal LDO for optimum gate drive
  • High peak drive current
  • Adaptive non-overlapping gate drives provide shoot-through protection
  • Support Combi-SenseTM and VID-on-fly operations
  • Fast rise and fall times (15ns typical with 3000pf load)
  • Ultra-low (<30ns) propagation delay (BG going low)
  • Floating top gate drive
  • Crowbar function for over voltage protection
  • High frequency (to 1.5 MHz) operation allows use of small inductors and low cost ceramic capacitors
  • Under-voltage-lockout
  • Low quiescent current

Applications


  • Intel Pentium® processor power supplies
  • AMD Athlon™ and AMD-K8™ processor power supplies
  • High-current low-voltage DC-DC converters

Packaging

SOIC-8 EDP

Order Codes

  • SC1211STR: Package Minimum Tape & Reel Only