L4964:High current switching regulator

The L4964 is a stepdown power switching regulator delivering 4A at a voltage variable from 5.1V to 28V.

Features of the device include overload protection, soft start, remote inhibit, thermal protection, a reset output for microprocessors and a PWM comparator input for synchronization in multichip configurations.

The L4964 is mounted in a 15-lead Multiwattâ plastic power package and requires very few external components.

Efficient operation at switching frequencies up to 120kHz allows a reduction in the size and cost of external filter components.

Key Features

  • CURRENT LIMITING
  • RESET OUTPUT
  • THERMAL SHUTDOWN
  • INPUT FOR REMOTE INHIBIT AND SYNCHRONUS PWM
  • VERY FEW EXTERNAL COMPONENTS
  • VERY HIGH EFFICIENCY (UP TO 90 %)
  • 4 A OUTPUT CURRENT
  • 0 TO 100 % DUTY CYCLE RANGE
  • 5.1 V TO 28 V OUTPUT VOLTAGE RANGE
  • SWITCHING FREQUENCY UP TO 120 KHz
  • SOFT START
  • PRECISE (± 3 %) ON-CHIP REFERENCE
产品规格
DescriptionVersionSize
DS0064: High current switching regulator1.21 MB
手册
DescriptionVersionSize
Brochure Power management guide05.20167 MB
样片和购买
型号PackagePacking TypeUnit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
L4964MW 15LTube3.9911000NECEAR99-
L4964HTMW 15LTube4.51000NECEAR99-
质量和可靠性
型号PackageGradeRoHS Compliance GradeMaterial Declaration**
L4964MW 15LIndustrialEcopack1
L4964HTMW 15LIndustrialEcopack1
High current switching regulator L4964
circuit_diagram_1359_thumbnail.png L4964
Very low drop voltage regulators with inhibit KFXX