LM25037QMT/NOPB

DC DC Switching Controllers Overview

The LM25037QMT/NOPB is an automotive-grade dual-mode PWM controller designed for half-bridge, full-bridge, and push-pull topologies. It operates with a supply voltage range of 5.5 V to 75 V and supports switching frequencies from 50 kHz to 2 MHz. The device features alternating outputs with a maximum duty cycle of 96% and provides a peak output current of 1.2 A. It includes fast rise (17 ns) and fall (18 ns) times, low quiescent current of 45 uA, and functions within a temperature range of -40°C to +125°C in a TSSOP-16 package.

DC DC Switching Controllers Feature Summary

• Supports dual-mode operation with alternating outputs for half-bridge, full-bridge, and push-pull configurations
• Automotive qualification compliant with AEC-Q100 standards for high reliability
• Enables flexible frequency selection across a wide range to optimize magnetic component size

DC DC Switching Controllers Applications

• Automotive power supply systems requiring robust controller performance
• Industrial DC-DC converters utilizing bridge topologies
• High-voltage isolated power conversion circuits

DC DC Switching Controllers Procurement Notes

Verify the specific suffix 'QMT' indicates the tape and reel packaging variant distinct from the tube-packaged 'QMT'. Confirm AEC-Q100 qualification status is required for the target application environment. Check for end-of-life notices as availability may be limited. Ensure the operating voltage range aligns with the system's input supply constraints. Validate thermal management requirements for the TSSOP-16 package under maximum load conditions.

DC DC Switching Controllers Selection Notes

Select this component when designing isolated power stages using transformer-coupled topologies. It is suitable for applications demanding high input voltages up to 75 V. Consider the alternating output feature for driving primary-side switches in bridge converters. Evaluate the switching frequency range against core loss and efficiency targets. Ensure the control loop design accommodates the specified duty cycle limits.

DC DC Switching Controllers Part Context

This part belongs to the LM25037 family of dual-mode PWM controllers. It shares functional similarities with the LM5037 but offers automotive-grade certification. The device integrates gate driver capabilities to directly control external MOSFETs. It is designed to simplify the implementation of complex power conversion architectures in demanding environments.

DC DC Switching Controllers Replacement Considerations

The LM25037QMTX/NOPB serves as a direct alternative with identical electrical specifications but differs in packaging format. Verify pin compatibility and thermal characteristics before substitution. Ensure the replacement meets the same automotive qualification requirements.