1.5 A SWITCHING REGULATOR

The L4963 is a monolithic power switching regulator delivering 1.5A at 5.1V. The output voltage is adjustable from 5.1V to 36V, working in discontinuous variable frequency mode. Features of the device include remote inhibit, internal current limiting and thermal protection, reset and power fail outputs for microprocessor.

The L4963 is mounted in a 12+3+3 lead Powerdip (L4963) and SO20 large (L4963D) plastic packages and requires very few external components.

Key Features

  • NO FREQ. COMPENSATION REQUIRED
  • VERY FEW EXTERNAL COMPONENTS
  • THERMAL SHUTDOWN
  • 1.5A OUTPUT LOAD CURRENT
  • DISCONTINUOUS VARIABLE FREQUENCY MODE
  • 5.1 TO 36V OUTPUT VOLTAGE RANGE
  • VERY HIGH EFFICIENCY
  • RESET AND POWER FAIL OUTPUT FOR MICROPROCESSOR
  • PRECISE (+/–2%) ON CHIP REFERENCE

Circuit Diagram

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Resources

Technical Documentation

Product Specifications
Description Version Size
DS0063 DS0063: 1.5A SWITCHING REGULATOR 1.1 4 MB
Application Notes
Description Version Size
AN458 AN458: Designing with the L4963 monolithic discontinuous mode power switching regulator 1.1 5 MB

Publications and Collaterals

Brochures
Description Version Size
Brochure Power management guide 05.2016 3 MB
Support & Community


Sample & Buy

Part Number Package Packing Type Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
L4963D SO-20 Tube Active 1.744 1000 NEC EAR99 MALAYSIA MORE INFO DISTRIBUTOR AVAILABILITY
L4963D013TR SO-20 Tape And Reel Active 1.744 1000 NEC EAR99 MALAYSIA MORE INFO Get Sample Add to cart DISTRIBUTOR AVAILABILITY
L4963W PDIP 18 Tube Active 1.861 1000 NEC EAR99 MALAYSIA MORE INFO Get Sample Add to cart DISTRIBUTOR AVAILABILITY
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(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L4963D ActiveSO-20IndustrialEcopack1 (*)
L4963D013TR ActiveSO-20IndustrialEcopack1 (*)
L4963W ActivePDIP 18IndustrialEcopack1
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(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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