PWM Controllers
  • SC418
    • DC-DC Buck PWM Controller with Programmable LDO
  • SC419
    • Single Phase DC-DC Converter with Integrated Boost Diode
  • SC454
    • Single-Phase Single Chip IMVP-6/6+ Vcore Power Supply
  • SC493
    • Step-down Controller with I2C Interface
  • SX1239
    • Low Power Integrated UHF Receiver
  • SC4538
    • High Efficiency Boost Converter for up to 10 LEDs
  • SC4539
    • High Efficiency Boost Converter for up to 6 LEDS
  • SC561
    • Dual Output Low Noise LDO Linear Regulator
  • SC810
    • Single Input/Single Mode Single-cell Li-ion Battery Charger
  • SCDAS4F
    • Standard Recovery, High Current Center Tap and Doubler Rectifier Assemblies
Semtech SC415

Semtech SC415

Dual Synchronous Buck PWM Controller

The SC415 is a versatile, constant on-time, pseudo fixed frequency, dual synchronous buck PWM controller intended for notebook computers and other battery operated portable devices. The SC415 contains all the features needed to provide cost-effective control of two independent switchmode power supplies.

Features


  • VIN Range 3-25V
  • Outputs Adjustable from 0.75 to 5.25V, or Preset Output Voltages:
    • VOUT1 = 1.8 or 1.5V
    • VOUT2 = 1.25 or 1.05V
  • Low Shutdown Power
  • Constant On-Time for Fast Dynamic Response
  • Adjustable Switching Frequency
  • Separated Frequencies for Minimal Switching Interaction:
    • VOUT1 = up to 600kHz
    • VOUT2 = up to 720kHz
  • Power Save or Continuous Operation at Light Load
  • Adjustable Soft-start Rates for Each Output
  • Soft-Shutdown for Each Output
  • Over-Voltage and Under-Voltage Fault Protection
  • Cycle-by-Cycle Valley Current Limit
  • DC Current Sense Using Low-Side RDSON Sensing, or RSENSE in Source of Low-Side MOSFET for Greater Accuracy
  • Separate Power Good Outputs
  • Separate Enable/Power Save Inputs
  • 3.1A Non-Overlapping Gate Drive
  • SmartDriveTM for High-Side MOSFET
  • MLP 4x4 24 Pin Package
  • Industrial Temperature Range

Applications


  • Notebook and Sub-Notebook Graphics
  • Voltage Controllers
  • Tablet PCs
  • Embedded Applications

Packaging

MLPQ-24

Order Codes

  • SC415MLTRT: Lead-free, RoHS and WEEE compliant, 3000 pcs. Tape & Reel