HIGH CURRENT SWITCHING REGULATORS

The L296 and L296P are stepdown power switching regulators delivering 4 A at a voltage variable from 5.1 V to 40 V.

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

The L296P incudes external programmable limiting current.

The L296 and L296P are mounted in a 15-lead Multiwatt® plastic power package and requires very few external components.

Efficient operation at switching frequencies up to 200 KHz allows a reduction in the size and cost of external filter components. A voltage sense input and SCR drive output are provided for optional crowbar overvoltage protection with an external SCR.

Key Features

  • EXTERNAL PROGRAMMABLE LIMITING CURRENT (L296P)
  • RESET OUTPUT
  • INPUT FOR REMOTE INHIBIT AND SYNCHRONUS PWM
  • CONTROL CIRCUIT FOR CROWBAR SCR
  • THERMAL SHUTDOWN
  • VERY FEW EXTERNAL COMPONENTS
  • VERY HIGH EFFICIENCY (UP TO 90 %)
  • 4 A OUTPUT CURRENT
  • 0 TO 100 % DUTY CYCLE RANGE
  • 5.1 V TO 40 V OUTPUT VOLTAGE RANGE
  • SWITCHING FREQUENCY UP TO 200 KHz
  • SOFT START
  • PRECISE (±2 %) ON-CHIP REFERENCE

Circuit Diagram

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Resources

Technical Documentation

Product Specifications
Description Version Size
DS0049 DS0049: HIGH CURRENT SWITCHING REGULATORS 1.1 2 MB
Application Notes
Description Version Size
AN245 AN245: Designing multiple output power supplies with the L296 and L4960 1.2 848 KB
AN244 AN244: Designing with the L296 monolithic power switching regulator 1.2 1 MB

Publications and Collaterals

Brochures
Description Version Size
Brochure Power management guide 09.2017 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
L296 MW 15L Tube Active 3.915 1000 NEC EAR99 MOROCCO MORE INFO DISTRIBUTOR AVAILABILITY
L296HT MW 15L Tube Active 3.998 1000 NEC EAR99 - MORE INFO DISTRIBUTOR AVAILABILITY
L296P MW 15L Tube Active 3.921 1000 NEC EAR99 MOROCCO MORE INFO 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**
L296 ActiveMW 15L-Ecopack1 0 0
L296HT ActiveMW 15L-Ecopack1
L296P ActiveMW 15L-Ecopack1 0 0
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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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