IS32PM3420A-GRLA3-TR

Voltage Regulators - DC DC Switching Regulators Overview

The IS32PM3420A-GRLA3-TR is a synchronous step-down voltage regulator manufactured by Lumissil Microsystems. It operates within an input voltage range of 3.8V to 36V and delivers a maximum output current of 3A. The device utilizes a fixed switching frequency of 400kHz for stable power conversion. It is housed in an SOP-8-EP package with physical dimensions of 4.9mm x 6.0mm, designed for efficient thermal dissipation and compact board integration.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Employs adaptive constant on-time (ACOT) control loop for rapid transient response and precise output regulation.
• Integrates internal high-side and low-side power MOSFETs to minimize external component count and PCB footprint.
• Features ultra-low quiescent current and shutdown current to conserve energy in battery-powered applications.

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive body power modules including ambient lighting systems
• Vehicle exterior lighting such as daytime running lights and dynamic tail lights
• In-car infotainment and navigation system power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix GRLA3 against the manufacturer's latest datasheet to confirm pinout and electrical specifications. Confirm AEC-Q100 Grade 1 qualification status if automotive reliability is required. Check for recent Product Change Notifications regarding material or process updates before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a 3A synchronous buck converter is needed with a wide 36V input tolerance. The 400kHz frequency offers a balance between efficiency and passive component size. Ensure the SOP-8-EP thermal pad can be adequately soldered to the PCB for heat management under full load conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the IS32PM342x series of automotive-grade synchronous buck regulators. The series includes variants with different current ratings, such as 2A and 4A models, sharing similar control architectures and packaging options to simplify supply chain management across different power requirements.

Voltage Regulators - DC DC Switching Regulators FAQ

What control topology does the IS32PM3420A use?

It uses an adaptive constant on-time (ACOT) control loop to achieve fast transient response and high efficiency.

Is the IS32PM3420A qualified for automotive applications?

Yes, the IS32PM342x series has passed AEC-Q100 Grade 1 certification for automotive electronic systems.