Product overview
Description
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.
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All 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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STMicroelectronics - L4963
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| L4963D | NRND | SO-20 | Industrial | Ecopack1 | |
| L4963D013TR | Active | SO-20 | Industrial | 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 | Order from distributors | Order from ST | Marketing Status | ECCN (US) | ECCN (EU) | Packing Type | Package | Temperature (°C) | Country of Origin | Budgetary Price (US$)*/Qty | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | max | |||||||||||
| L4963D | distributors No availability of distributors reported, please contact our sales office | NRND | EAR99 | NEC | Tube | SO-20 | - | - | - | | ||
| L4963D013TR | distributors No availability of distributors reported, please contact our sales office | Active | EAR99 | NEC | Tape and Reel | SO-20 | - | - | MALAYSIA | | ||
(*) 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