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
  • 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 SC4508

Semtech SC4508

Buck or Buck-Boost (Inverting) Current-Mode Controller

The SC4508 is a low voltage current mode switching regulator controller that drives a P-channel power MOSFET with programmable switching frequency. It can be configured in either buck or buck boost (inverting) converters.

Features


  • Wide input voltage range 2.7V to 15V
  • Programmable output voltage
  • Programmable switching frequency up to 1.5MHz
  • Buck or buck boost(inverting) configuration
  • Current mode control with slope compensation
  • Very low quiescent current in shutdown mode
  • Accessible reference voltage
  • MLPQ-12 package

Applications


  • Low power point of use converters
  • Single or multiple output low power converters
  • Positive and/or negative output voltage
  • DSL cards
  • Graphic cards
  • I/O cards
  • Negative bias supplies

Packaging

MLPQ-12

Order Codes

  • SC4508IMLTRT: Lead-Free, RoHS and WEEE Compliant, Package Minimum Tape & Reel Only