LM20145QMHX/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM20145QMHX/NOPB is an automotive-grade synchronous buck regulator manufactured by Texas Instruments. It operates within a 2.95V to 5.5V input voltage range and delivers up to 5A of output current. The device features adjustable switching frequencies from 300kHz to 2.2MHz and includes accurate current limiting. It is qualified to AEC-Q100 Grade 1 standards and functions reliably across temperatures from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Automotive qualification compliant with AEC-Q100 Grade 1 standards for high reliability in vehicle environments.
• Synchronous rectification design ensures high efficiency and reduced external component count.
• Integrated accurate current limit protection minimizes the required inductor size while safeguarding against overloads.

Voltage Regulators - DC DC Switching Regulators Applications

• On-board charging systems
• Infotainment power distribution
• Telematics control units

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'QMHX' confirms the HTSSOP-16 package and tape-and-reel shipping configuration. Confirm AEC-Q100 Grade 1 certification status matches project requirements. Ensure compatibility with the intended input voltage range of 2.95V to 5.5V before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing for automotive applications requiring a compact, high-current solution. The adjustable frequency feature allows optimization for specific EMI constraints or inductor size reductions. Verify that the 5A continuous current capability aligns with the peak load demands of the target circuit.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM201xx family of synchronous buck regulators designed specifically for automotive electronics. It integrates power switches and control logic into a single compact package, simplifying the design process for engineers developing power stages for vehicles.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Consult official Texas Instruments documentation for verified cross-reference part numbers. Do not assume functional equivalence with other buck regulators without validating pinout, thermal performance, and electrical specifications against the original datasheet.

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum output current capability?

The device supports a maximum output current of 5A.

Is this component suitable for harsh automotive environments?

Yes, it is qualified to AEC-Q100 Grade 1 and operates from -40°C to +125°C.