LM46000QPWPRQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LM46000QPWPRQ1 is an automotive-grade synchronous buck switching regulator IC from Texas Instruments. It operates with an input voltage range of 3.5 V to 60 V and provides a positive adjustable output voltage from 1 V to 28 V. The device delivers a maximum output current of 500 mA. It features a fixed switching frequency range of 200 kHz to 2.2 MHz and includes integrated synchronous rectification. The component is qualified to AEC-Q100 standards and functions within a junction temperature range of -40°C to +125°C, housed in a 16-pin HTSSOP package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for reliability in vehicle environments.
• Wide input voltage capability supporting 3.5 V to 60 V sources for flexible system integration.
• Integrated synchronous rectification for improved efficiency and reduced external component count.
• Adjustable output voltage regulation allowing customization for various load requirements.

Voltage Regulators - DC DC Switching Regulators Applications

• Automotive infotainment systems requiring stable power delivery.
• Electronic control units (ECUs) needing isolated or non-isolated DC-DC conversion.
• Body electronics modules operating under wide input voltage conditions.
• ADAS sensor power supplies requiring high reliability and low noise.

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'PWPRQ1' matches the required HTSSOP-16 package and reel quantity. Confirm AEC-Q100 grade alignment with project specifications. Check for end-of-life status as some variants may be marked NRND. Ensure ESD handling protocols are followed due to moisture sensitivity classification. Validate pinout compatibility during PCB layout finalization.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a wide input voltage range up to 60 V is required for automotive applications. Choose the LM46000QPWPRQ1 over lower-voltage regulators if system transients exceed 30 V. Consider the 500 mA output limit against peak load demands. Evaluate thermal performance in the HTSSOP-16 package for the expected ambient conditions. Compare switching frequency options against electromagnetic interference constraints.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the Simple Switcher family of power management ICs from Texas Instruments. It is designed specifically for automotive markets, offering robust protection features and high efficiency. The LM46000 series complements other buck converters by providing higher input voltage tolerance compared to standard 30 V devices. It integrates control logic and power switches into a compact form factor.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for direct pin-to-pin replacements within the LM46000 series such as LM46001QPWPRQ1 for higher current needs. Verify functional equivalence with LM46002QPWPTQ1 if 2 A output is sufficient. Review datasheet revisions for any parameter shifts before substitution. Ensure thermal resistance characteristics match the existing heatsinking design.