LM46001QPWPRQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LM46001QPWPRQ1 is an automotive-qualified synchronous buck switching regulator from Texas Instruments. It operates with an input voltage range of 3.5 V to 60 V and delivers a continuous output current of 1 A. The device features adjustable output voltages between 1 V and 28 V, with a fixed internal switching frequency of 2.2 MHz. It includes a shutdown function and maintains a low quiescent current of 24 uA. Packaged in a 16-pin HTSSOP, it supports junction temperatures from -40°C to +125°C and holds AEC-Q100 qualification.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automotive-grade reliability certified under AEC-Q100 standards for robust performance in vehicle environments.
• Wide input voltage capability allows direct connection to high-voltage automotive bus systems up to 60 V.
• Integrated synchronous rectification provides high efficiency across the load range while minimizing external component count.

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation in automotive infotainment and telematics units
• Power distribution networks for electronic control modules requiring wide input tolerance
• Bias supply generation for sensors and actuators in harsh thermal conditions

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the NRND status before integration, as this indicates the component is not recommended for new designs. Confirm package integrity upon receipt, as moisture sensitivity requires proper handling. Cross-reference datasheet revisions to ensure compatibility with existing schematics. Validate supplier authenticity through authorized channels to avoid counterfeit risks. Check for specific ordering suffixes that may affect packaging or testing levels.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this part when designing for automotive applications requiring high input voltage tolerance up to 60 V. Ensure the design accommodates the 2.2 MHz switching frequency for optimal inductor size. Verify that the required output current does not exceed 1 A continuous limits. Consider the 16-pin HTSSOP footprint for PCB layout constraints. Evaluate thermal management needs given the 125°C maximum junction temperature rating.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the Simple Switcher family of power management ICs, designed for ease of use in DC-DC conversion. It shares architectural similarities with other LM4600x series devices but offers higher current capacity than the 500 mA variants. The QPWR suffix denotes automotive qualification and reel packaging. It serves as a drop-in replacement for legacy non-automotive regulators in upgraded vehicle electronics.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM46001AQPWPRQ1 is a parameter-equivalent alternative within the same automotive qualified series.