L4962EH/A

Voltage Regulators - DC DC Switching Regulators Overview

The L4962EH/A is a monolithic step-down switching regulator manufactured by STMicroelectronics, designed for high-efficiency power conversion. It operates with an input voltage range from 9 V to 46 V and provides an adjustable output voltage between 5.1 V and 40 V. The device delivers a maximum output current of 1.5 A and supports a switching frequency up to 150 kHz. It utilizes a bipolar voltage-mode control architecture housed in a 7-pin Heptawatt package. Key electrical specifications include line regulation of 50 mV and load regulation of 20 mV, ensuring stable performance across varying conditions.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates comprehensive protection mechanisms including thermal shutdown, overload protection, and soft start functionality to ensure reliable operation under fault conditions.

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial power supply systems requiring isolated or non-isolated step-down conversion
• Embedded systems utilizing microcontrollers needing regulated low-voltage rails from higher bus voltages
• Battery-powered equipment where efficient energy management from 9-46 V sources is critical

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'EH' against the manufacturer's official datasheet to confirm pinout compatibility and thermal pad configuration. Confirm RoHS compliance status through the latest environmental declaration. Ensure that the Heptawatt-7 package dimensions match your PCB footprint requirements precisely. Check for any recent product change notices regarding material composition or manufacturing site changes before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a robust, single-output buck converter is needed for inputs up to 46 V. It is suitable for applications prioritizing thermal stability and integrated protection over multi-rail complexity. Consider the 1.5 A current limit as the primary constraint for load sizing. Evaluate the 150 kHz switching frequency against EMI constraints and external filter component size requirements compared to lower-frequency alternatives.

Voltage Regulators - DC DC Switching Regulators Part Context

The L4962 series belongs to STMicroelectronics' legacy lineup of high-current switching regulators. These devices were designed to replace linear regulators in applications where efficiency and heat dissipation are major concerns. The L4962 specifically targets the 1.5 A market segment, offering a cost-effective solution for medium-power DC-DC conversion tasks in industrial and automotive environments.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Publicly confirmed direct substitutes are not available in the provided documentation. The L4964 is a related family member but offers 4 A output and different voltage ranges; it is not a pin-compatible drop-in replacement. Designers should consult STMicroelectronics for current portfolio recommendations if discontinuation is a concern.