LM43602AQPWPTQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LM43602AQPWPTQ1 is an automotive-qualified synchronous step-down voltage converter from Texas Instruments. It operates with an input voltage range of 3.5 V to 36 V and delivers a continuous output current of 2 A. The device features an adjustable output voltage ranging from 1 V to 28 V. It supports programmable switching frequencies between 200 kHz and 2.2 MHz. The component maintains a typical quiescent current of 27 uA. It functions within a junction temperature range of -40°C to +125°C. The unit is housed in a 16-PowerTSSOP package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for reliability in vehicle environments.
• Integrated synchronous rectification provides high efficiency across load conditions.
• Programmable switching frequency allows optimization for specific size and performance requirements.
• Built-in protection mechanisms include thermal shutdown, undervoltage lockout, and cycle-by-cycle current limiting.

Voltage Regulators - DC DC Switching Regulators Applications

• On-board charging systems in electric and hybrid vehicles
• Infotainment and display power distribution networks
• Body control modules requiring robust voltage regulation
• ADAS sensor power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including suffixes to ensure correct packaging and automotive grade alignment. Confirm that the intended application meets the specified electrical limits and environmental conditions. Check for recent Product Change Notifications regarding assembly or material updates. Ensure compatibility with required moisture sensitivity levels during soldering processes. Validate that the supplier source matches the manufacturer's authorized distribution channels.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing for automotive applications requiring a 2 A buck converter with wide input voltage tolerance. The adjustable output voltage offers flexibility for various rail requirements. Consider the available switching frequency range to balance electromagnetic interference and external component size. Ensure the PCB layout accommodates the PowerTSSOP package dimensions and thermal dissipation needs for the target operating environment.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM4360x SIMPLE SWITCHER family of regulators. The family includes variants with different current capabilities and input voltage ranges. The LM43602 specifically targets the 2 A output segment. Automotive versions carry the Q1 designation and meet strict reliability standards. The series emphasizes ease of use with minimal external component counts.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM43602DSUR is the commercial equivalent with identical electrical specifications but lacks automotive qualification. LM43602PWPRQ1 shares the same function and package but may differ in reel packaging quantity. Verify pin-to-pin compatibility and thermal characteristics before substitution.