Switching Regulators
  • SC187
    • 4A, 2.2MHz Synchronous Step-Down Regulator with 15 Preset Output Voltages
  • SC220
    • 20MHz, 650mA, X-EMI™-Enabled Synchronous Step-Down Regulator
  • SC220Q
    • 20MHz, 650mA, X-EMI™-Enabled Synchronous Step-Down Regulator
  • SC2308A
    • 600kHz Step-Up Switching Regulator with 2.2A, 45V Switch
  • SC284
    • Dual Channel 2.5MHz, 1.8A Synchronous Step-Down Regulator
  • SC3102
    • 2A Synchronous Step-Down Regulator
  • SC401B
    • 15A Integrated FET Regulator with Programmable LDO
  • SC402B
    • 10A EcoSpeed® Integrated FET Regulator with Programmable LDO
Semtech SC172

Semtech SC172

2A EcoSpeed® Synchronous Step-Down Regulator with Optional Ultrasonic Power Save

The SC172 is an integrated, synchronous 2A EcoSpeed® step-down regulator, which incorporates Semtech’s advanced, patented adaptive on-time architecture to achieve best-in-class performance in dynamic point-ofload applications. The input voltage range is 3V to 5.5V with a programmable output voltage from 0.75V up to 95% x VIN. The device features low-RDS(ON) internal switches and optional PSAVE mode for high efficiency across the output load range.

For 2A EcoSpeed Synchronous Step-Down Regulator, see SC171 product page.

Features


  • VIN: 3V to 5.5V
  • VOUT: 0.75V to 95% x VIN
  • IOUT: Up to 2A
  • Low RDS(ON) Switches
    • Up to 95% Peak Efficiency
  • High Output Accuracy
  • Small Ceramic Capacitors
  • Power Good Pin (Open-Drain)
  • Patented Adaptive On-Time Control:
    • Excellent Transient Response
    • Programmable Pseudo-fixed Frequency
  • Fault Protection Features:
    • Cycle-by-Cycle Current Limit
    • Short Circuit Protection
    • Over and Under Output Voltage Protection
    • Over-Temperature
  • Internal Soft start
  • Ultrasonic Power Save
  • Smart Power Save
  • Ultra-Small Lead-Free 3x3mm, 10-Pin MLPD Package
  • Fully WEEE and RoHS Complian

Applications


  • Networking Equipment, Embedded Systems
  • Medical Equipment, Office Automation
  • Instrumentation, Portable Systems
  • Consumer Devices (DTV, Set-top Box, ... )
  • 5V POL Converters

Packaging

  • MLPD 3x3mm 10-pin

Order Codes

  • SC172MLTRT