L5975DTR

Voltage Regulators - DC DC Switching Regulators Overview

The L5975DTR is a step-down monolithic power switching regulator capable of delivering up to 3 A DC output current. It features an operating input voltage range from 4 V to 36 V and an adjustable output voltage from 1.235 V to 35 V. The device utilizes an internal P-channel D-MOS transistor with a typical RDS(on) of 250 mΩ, eliminating the need for bootstrap capacitors. An internal oscillator sets the switching frequency at 250 kHz. It includes thermal shutdown, pulse-by-pulse current limiting, and feedback disconnection protection.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• High current capability with minimum switch current limit of 3.75 A
• Internal P-channel D-MOS transistor for high efficiency
• Comprehensive protection suite including thermal shutdown and current limiting

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive applications requiring operation during cold crank conditions
• Industrial systems utilizing 5V or 12V bus architectures
• Computer-related equipment and general-purpose power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'TR' indicates tape and reel packaging configuration when sourcing. Confirm the component meets AEC-Q100 qualification requirements if automotive grade certification is mandatory for the target application environment. Ensure compatibility with the HSOP8 package footprint during PCB layout finalization.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for designs requiring robust 3 A output current handling within a compact form factor. The exposed frame package facilitates effective heat dissipation, reducing thermal resistance significantly compared to standard packages. It is suitable for applications demanding low dropout performance and wide input voltage flexibility.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the L597x series of step-down regulators from STMicroelectronics. It shares architectural similarities with the L5970D and L5972D but offers higher current capacity. The series is designed for industrial and automotive markets, emphasizing reliability and efficient power conversion in space-constrained environments.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The L5973D serves as a lower-current alternative within the same family. Verify pinout compatibility and thermal performance differences when substituting. No direct cross-brand equivalents are confirmed in the provided documentation.