LM5025AMTC

DC DC Switching Controllers Overview

The LM5025AMTC is an Active Clamp Voltage Mode PWM Controller manufactured by Texas Instruments. It is designed for forward converter regulators with positive, isolation-capable outputs and supports step-up/step-down DC-DC topologies. The device operates within a supply voltage range of 13 V to 90 V and delivers a maximum output current of 3 A. It features a programmable switching frequency ranging from 200 kHz to 580 kHz, with a typical setting at 220 kHz. The controller provides a maximum duty cycle of 80% and includes two output channels. It is housed in a 16-TSSOP package and functions within a junction temperature range of -40°C to 125°C.

DC DC Switching Controllers Feature Summary

• Implements power converters utilizing the Active Clamp / Reset technique for enhanced efficiency.
• Provides clock synchronization capability to allow external timing control.
• Integrates comprehensive control features including soft-start, frequency control, and slope compensation.
• Supports both boost and buck functionalities within a single controller architecture.

DC DC Switching Controllers Applications

• Forward converter regulator designs requiring positive, isolated outputs
• Step-up and step-down DC-DC conversion systems
• Power supplies utilizing active clamp reset techniques

DC DC Switching Controllers Procurement Notes

Verify the specific suffix (e.g., NOPB) against the datasheet to confirm lead-free status and RoHS compliance. Ensure the ordering code matches the required tape-and-reel packaging configuration. Cross-reference the manufacturer part number with distributor listings to confirm availability and authenticity before procurement.

DC DC Switching Controllers Selection Notes

Select this component when designing forward converters that require active clamp reset capabilities. It is suitable for applications needing a wide input voltage range up to 90 V. Consider the 16-TSSOP package constraints for thermal management. Verify that the required switching frequency falls within the 200 kHz to 580 kHz operational window for optimal performance.

DC DC Switching Controllers Part Context

The LM5025A belongs to the LM5025 family of Active Clamp Voltage Mode PWM Controllers. This series is engineered for high-efficiency power conversion applications. The AMTC variant specifically denotes the TSSOP-16 package option. It serves as a core control IC for managing power stages in advanced DC-DC converter architectures.

DC DC Switching Controllers Replacement Considerations

Public confirmed substitute part numbers include LM5025MTCX and LM5025AEVAL/NOPB. Verify pin compatibility and electrical specifications before substitution.