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.
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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 | NRND | MW 15L | Industrial | Ecopack1 | |
L4964
Package:
MW 15LMaterial Declaration**:
(**) 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 | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Temperature (°C) | Operating Temperature (°C) (min) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||||
| L4964 | | | distributors No availability of distributors reported, please contact our sales office | MW 15L | Tube | MOROCCO | EAR99 | NEC | - | - | - | |||
L4964 NRND
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors