LM43601AQPWPRQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LM43601AQPWPRQ1 is an automotive-grade synchronous step-down DC-DC converter from Texas Instruments' SIMPLE SWITCHER family. It delivers a continuous output current of 1A with an adjustable output voltage range from 1V to 28V. The device accepts an input voltage between 3.5V and 36V, operating within a junction temperature range of -40°C to 125°C. It features a programmable switching frequency from 200kHz to 2.2MHz and includes integrated power MOSFETs in a 16-PowerTSSOP package. The component holds AEC-Q100 qualification for automotive reliability.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous buck topology with integrated high-side and low-side power switches for efficient power conversion
• Programmable switching frequency allows optimization for size or efficiency requirements
• Automotive grade certification ensuring reliability under harsh environmental conditions
• Built-in protection mechanisms including thermal shutdown, undervoltage lockout, and cycle-by-cycle current limit

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems requiring stable regulated power rails
• Electronic control units (ECUs) needing efficient voltage regulation
• ADAS sensor modules demanding reliable DC-DC conversion
• Body electronics applications such as lighting and window controls

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including suffixes to ensure correct packaging and temperature grade. Confirm that the specific variant matches the required automotive qualification level. Check datasheet revisions for any updates to electrical characteristics or pin configurations before finalizing procurement specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a 1A output current is sufficient for the load while maintaining automotive compliance. Consider the input voltage range limits against the system's supply variations. Evaluate the thermal performance within the 16-PowerTSSOP package based on expected ambient temperatures and PCB copper area availability for heat dissipation.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM4360x series of SIMPLE SWITCHER converters, which share similar control architectures but differ in output current capabilities. Variants like LM43600 offer 500mA, while LM43602 provides 2A. All members utilize synchronous rectification and feature adjustable frequencies, allowing designers to scale current capacity while maintaining consistent design methodologies across the product line.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM43601AQPWPTQ1 offers identical electrical specifications with a tube package instead of tape and reel. LM43601QPWPRQ1 serves as a standard industrial grade alternative without automotive qualification. LM43601PWPRQ1 provides a non-aqueous plating option. Verify package compatibility and qualification requirements when substituting.