LM43601QPWPRQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LM43601QPWPRQ1 is an automotive-qualified synchronous step-down DC-DC converter from the SIMPLE SWITCHER family. It operates with an input voltage range of 3.5V to 36V and delivers a continuous output current of 1A. The device features adjustable output voltages between 1V and 28V, with a programmable switching frequency ranging from 200kHz to 2.2MHz. Packaged in a 16-pin PowerTSSOP (HTSSOP) case, it supports junction temperatures from -40°C to 125°C and includes integrated protection mechanisms such as thermal shutdown and current limiting.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous buck topology for high efficiency
• Automotive AEC-Q100 qualification
• Programmable switching frequency
• Integrated soft-start and power good indication

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems
• Telematics control units
• Body electronics modules
• Industrial sensor nodes

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'PWPRQ1' matches the required package type and tape-and-reel quantity. Confirm that the 'A' or standard designation aligns with the intended temperature grade and reliability requirements. Ensure the ordering part number corresponds exactly to the datasheet specifications to avoid pinout or functional mismatches during integration.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a robust, automotive-grade solution is required for moderate current loads up to 1A. It is suitable for designs needing flexible input voltage ranges up to 36V. Consider alternative packages if space constraints differ from the 16-HTSSOP footprint. Evaluate the need for external compensation versus internal stability based on the chosen switching frequency.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM4360x series of SIMPLE SWITCHER regulators, designed for ease of use with minimal external components. The LM43601 variant specifically targets 1A applications within the broader family that includes higher current options like the LM43602 and LM43603. It shares architectural similarities with other Texas Instruments automotive buck converters but offers distinct current capabilities.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM43601AQPWPTQ1

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum input voltage supported by this regulator?

The LM43601QPWPRQ1 supports a maximum input voltage of 36V.

Is the switching frequency fixed or adjustable?

The switching frequency is programmable, allowing selection between 200kHz and 2.2MHz.