PWM Controllers
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    • 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 SC412A

Semtech SC412A

Synchronous Buck Controller

The SC412A is a versatile, constant on-time synchronous buck, pseudo fixed-frequency, PWM controller intended for notebook computers and other battery operated portable devices. The SC412A contains all the features needed to provide cost-effective control of switch-mode power outputs.

Features


  • VBAT Range 3V to 25V
  • Soft-Shutoff at Output
  • Current Sense Using Low-Side RDS(ON) or Resistor
  • Sensing with Adjustable Cycle-by-Cycle Current Limit
  • Fixed-Frequency, 325kHz
  • Constant On-Time for Fast Dynamic Response and Reduced Output Capacitance
  • Automatic Smart Power Save†
  • Internal Soft-Start
  • Over-Voltage/Under-Voltage Fault Protection
  • Power Good Output
  • 1μA Typical Shutdown Current
  • Tiny 3x3mm, 16 Pin MLP, Lead-free Package
  • Low External Part Count
  • Industrial Temperature Range
  • 1% Internal Reference
  • 1A/3A Non-Overlapping Gate Drive with SmartDrive™
  • High Effi ciency > 90%
  • Fully WEEE and RoHS Compliant
† Patent pending

Applications


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

Packaging

MLP-16

Order Codes

  • SC412AMLTRT: Lead-free, RoHS and WEEE compliant, 3000 pcs. Tape & Reel