Switching Regulators
  • SC195F
  • 3.5MHz, 500mA Synchronous Step Down DC-DC Regulator
  • SC202F
  • 3.5MHz, 500mA Step-down Regulator with Integrated Inductor
  • SC21150
  • Tiny 1.2A Synchronous Buck Regulator
  • SC21152
  • Tiny 1.2A Synchronous Buck Regulator with Power Good
  • SC221
  • 20MHz, 650mA, X-EMI™-Enabled Synchronous Step-Down Regulator
  • SC284AQ
  • Dual Channel 2.5MHz, 1.7A Synchronous Buck Regulator
  • TS13101
  • Galvanic Isolated Latching 60V Power Load Switch
  • TS30011
  • High Efficiency 1A Current-Mode Synchronous Buck DC/DC Converter, 1MHz
Semtech SC2677B

Semtech SC2677B

Dual Synchronous Voltage-Mode Controller with Current-Sharing Circuitry

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The SC2677B is a versatile 2 phase, synchronous, voltage mode PWM controller that can be used in two distinct ways. First, the SC2677B is ideal for applications where point of use output power exceeds any single input power budget. Alternatively, the SC2677B can be configured as a dual switcher. The SC2677B features a precise temperature compensated voltage reference, cycle-by-cycle peak current limit, under voltage lockout over current protection, and internal level-shifted high-side gate drive circuitry.

Features


  • 300 kHz to 1 MHz externally programmable frequency operation
  • Soft start and enable function
  • Power-good output provided
  • Cycle-by-cycle peak current limit
  • Latch off for over-current protection
  • Phase-shifted switchers minimize ripple
  • High efficiency operation, > 90%
  • Programmable output(s) as low as 0.5 V
  • Industrial temperature range
  • Bias voltage as low as 4.5 V
  • Adjustable phase shift between channels
  • TSSOP-24 package
  • TSSOP-24 EDP package
  • Two Phase, Current Sharing Controller
    • Flexible, same or separate VIN
    • Programmable current sharing
    • Thermal distribution via multi-phase output

Applications


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

Packaging

TSSOP-24, TSSOP-24-EDP

Order Codes

  • SC2677BITSTRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
  • SC2677BTETRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only
 
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