L296PHT

Voltage Regulators - DC DC Switching Regulators Overview

The L296PHT is a step-down power switching regulator delivering 4 A output current. It operates with an input voltage variable from 5.1 V to 40 V and supports switching frequencies up to 200 KHz. The device features a precise on-chip reference with ±2% accuracy, a 0 to 100% duty cycle range, and soft start functionality. It includes thermal shutdown protection, a reset output for microprocessors, and a PWM comparator input for synchronization. The L296PHT variant specifically provides external programmable limiting current.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Delivers 4 A output current with high efficiency up to 90%
• Includes external programmable limiting current capability
• Provides thermal shutdown protection and reset output for microprocessors

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial applications
• Automotive systems
• General power supply designs

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'HT' against the official STMicroelectronics datasheet to confirm package type and tape-and-reel specifications. Ensure the application design accounts for the external components required for the programmable current limit feature. Confirm compatibility with the 5.1 V to 40 V input range and 200 KHz switching frequency requirements before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select the L296PHT when external programmable current limiting is required alongside standard buck converter features. This model is suitable for designs needing a 4 A output with input voltages up to 40 V. Consider the Multiwatt plastic power package constraints and the need for few external components. Evaluate thermal management needs given the high efficiency and current delivery capabilities.

Voltage Regulators - DC DC Switching Regulators Part Context

The L296PHT belongs to the L296 family of monolithic buck converters and step-down switching regulators from STMicroelectronics. This family targets automotive and industrial applications requiring high reliability. The L296PHT variant distinguishes itself by offering external programmable limiting current, whereas other variants may lack this specific feature. It complements the broader portfolio of efficient power management solutions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.