PWM Controllers
  • SC1102
  • Synchronous Voltage-Mode Controller for Distributed Power-Supply Applications
  • SC1103
  • Asynchronous Voltage-Mode PWM Controller for 12 V Input
  • SC1104A
  • Not Recommended For New Designs
  • SC1104B
  • Simple, Synchronous Voltage-Mode PWM Controller
  • SC1109
  • Synchronous PWM Controller With Dual Low-Dropout Regulator Controllers
  • SC1110
  • Sink and Source DC/DC Controller For Termination Power Supply Applications
  • SC1116
  • Linear FET Controller for DDR Supplies
  • SC1175
  • Low-Power Dual Synchronous DC/DC Controller with Current-Sharing Circuitry
Semtech SC2434

Semtech SC2434

TriPhase Current Mode Controller with Power Good

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The SC2434, a tri-phase, current mode controller is designed to work with Semtech smart synchronous drivers, such as the SC1205, SC1206, and SC1207 to provide the DC/DC converter solution for the most demanding Microprocessor applications.

Features


  • 12V input
  • Input sensing current mode control
  • Selectable 2 or 3 phase operation
  • Precision, pulse by pulse phase current matching
  • Active drooping allows for best transient response
  • Programmable internal oscillator to 1.5 MHz
  • Programmable DAC step size/offset allows compliance with VRM9.0 and VRM9.2
  • VID 11111 Inhibit (No CPU)
  • Externally programmable soft-start
  • 0% minimum duty cycle improves transient response
  • Cycle by cycle current limiting plus hiccup
  • Power good signal

Applications


  • Intel Pentium-4 microprocessors
  • High-performance desktop systems

Packaging

TSSOP-20

Order Codes

  • SC1205ECSTR: Package Minimum Tape & Reel Only
  • SC2434HTSTR: Package Minimum Tape & Reel Only
  • SC2434SWTR: Package Minimum Tape & Reel Only
  • SC2434TSTR: Package Minimum Tape & Reel Only
 
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