L4964

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High current switching regulator

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Product overview

Description

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.
  • All 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

Circuit Diagram

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STMicroelectronics - L4964

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
L4964
Active
MW 15L Industrial Ecopack1

L4964

Package:

MW 15L

Material Declaration**:

Marketing Status

Active

Package

MW 15L

Grade

Industrial

RoHS Compliance Grade

Ecopack1

(**) 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.

Sample & Buy

Part Number
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Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
L4964 No availability of distributors reported, please contact our sales office Buy Direct
Active
EAR99 NEC Tube MW 15L - - MOROCCO 3.991 / 1k

L4964

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

3.991 / 1k

ECCN (EU)

NEC

Packing Type

Tube

Package

MW 15L

Operating Temperature (°C)

(min)

-

(max)

-

Budgetary Price (US$)* / Qty

3.991 / 1k

Country of Origin

MOROCCO

(*) 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