LM5026SD/NOPB

DC DC Switching Controllers Overview

The LM5026SD/NOPB is an active clamp current mode PWM controller designed for forward converter topologies. It operates within a supply voltage range of 8V to 15V and supports switching frequencies between 200kHz and 590kHz. The device features a maximum duty cycle of 70% or 80%, depending on configuration, and utilizes a 16-WSON (5x5) package with exposed pad. It provides two output channels with one output stage, suitable for isolated positive outputs.

DC DC Switching Controllers Feature Summary

• Integrates active clamp circuitry to recover transformer leakage energy and reduce switch voltage stress.
• Supports clock synchronization for noise immunity and multi-controller phase shifting.
• Includes built-in soft-start functionality to limit inrush current during startup.
• Features adjustable frequency control and blanking time management for stable operation.

DC DC Switching Controllers Applications

• Isolated DC-DC power supplies
• Telecommunications equipment
• Industrial control systems

DC DC Switching Controllers Procurement Notes

Verify the specific suffix against the manufacturer's latest datasheet to confirm pinout and electrical characteristics match your design requirements. Ensure the component status is active, as some variants may be discontinued. Cross-reference the package outline drawing to confirm mechanical compatibility with your PCB footprint before finalizing procurement.

DC DC Switching Controllers Selection Notes

Select this controller for applications requiring high efficiency in forward converter designs due to its active clamp feature. Consider the operating temperature range of -40°C to 125°C for industrial environments. Evaluate the required switching frequency range against external component availability and magnetic core losses. Verify that the 16-WSON package fits within the spatial constraints of the target enclosure.

DC DC Switching Controllers Part Context

This component belongs to the LM5026 family of power management ICs from Texas Instruments. It is part of a broader portfolio of switching controllers aimed at improving power density and efficiency in offline and isolated DC-DC conversion applications. The NOPB suffix indicates compliance with RoHS standards and absence of lead-based materials.

DC DC Switching Controllers Replacement Considerations

LM5026SDX/NOPB is a documented substitute variant within the same family. Verify functional equivalence regarding pinout and specifications before substitution.