LM5020SDX-2

DC DC Switching Controllers Overview

The LM5020SDX-2 is a high-voltage current-mode PWM controller designed for boost, flyback, and SEPIC topologies. It operates with an input voltage range of 13V to 90V and supports switching frequencies from 100kHz to 1MHz. The device features a 1A peak gate driver with rise and fall times of 18ns and 15ns respectively. It provides a maximum duty cycle of 80% and includes programmable soft-start functionality. The controller functions within a temperature range of -40°C to +125°C and is housed in a 10-pin WSON package.

DC DC Switching Controllers Feature Summary

• Supports multiple non-isolated power converter topologies including boost, flyback, and SEPIC configurations.
• Integrates a high-current gate driver capable of sourcing and sinking 1A peak current for efficient switch control.
• Features programmable soft-start capability to manage inrush current during startup sequences.

DC DC Switching Controllers Applications

• Industrial power supply designs requiring wide input voltage ranges
• Automotive electronics utilizing flyback or boost architectures
• General-purpose DC-DC conversion systems operating at high frequencies

DC DC Switching Controllers Procurement Notes

Verify the specific ordering suffix matches the required tape-and-reel configuration. Confirm that the 10-pin WSON EP package variant aligns with your PCB footprint requirements. Ensure the selected revision supports the necessary thermal performance for your intended operating environment. Cross-reference the manufacturer's latest documentation to confirm compliance with current RoHS standards and availability status before finalizing procurement orders.

DC DC Switching Controllers Selection Notes

Select this component when designing circuits requiring operation above 13V input with support for up to 100V. Consider the current-mode control architecture for improved transient response compared to voltage-mode alternatives. Evaluate the 100kHz to 1MHz frequency range against magnetic component size constraints. Ensure the 80% maximum duty cycle accommodates the required voltage conversion ratio for your specific application topology.

DC DC Switching Controllers Part Context

The LM5020 series represents Texas Instruments' solution for high-voltage switching applications. This specific model integrates essential control logic into a compact surface-mount package. It serves as a core component for designers needing reliable PWM control without external complex circuitry. The family targets efficiency improvements in industrial and automotive sectors through integrated protection and drive features.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include other LM5020 variants such as LM5020SD-1/NOPB or LM5020SD-2/NOPB, depending on the required packaging format. Verify pin compatibility and electrical specifications before swapping between different suffixes. Ensure that any alternative maintains the same current-mode control characteristics and voltage ratings.