LM5009SDX/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM5009SDX/NOPB is a non-synchronous buck switching regulator from Texas Instruments. It operates with an input voltage range of 9.5V to 95V and provides a maximum output current of 150mA. The device utilizes a constant on-time (COT) control architecture and supports adjustable switching frequencies up to 600kHz. It features an adjustable output voltage range from 2.5V to 85V. The component is housed in an 8-WSON package with a thermal pad, rated for junction temperatures between -40°C and 125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Constant on-time control architecture for fast transient response
• Wide input voltage capability supporting high-voltage sources
• Integrated thermal shutdown protection
• Adjustable switching frequency for optimization

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial power supplies
• Point-of-load regulation
• High-voltage battery systems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'SDX' against the manufacturer's latest documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with existing PCB footprints for the WSON-8EP package. Confirm that the 150mA output rating meets system requirements under all operating temperature conditions.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a wide input voltage range exceeding standard regulators is required. The COT topology offers simplicity in external component selection. Consider the 150mA current limit for low-power applications. Evaluate the need for synchronous rectification if higher efficiency at light loads is critical, as this model is non-synchronous.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM5009 family of high-voltage buck converters. It is designed for applications requiring robust performance from high-voltage inputs. The device integrates the high-side switch and control logic into a compact package, reducing the overall solution size compared to discrete solutions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM5009MM/NOPB: Pin-compatible alternative in MSOP package. LM5009SDC/NOPB: Alternative in WSON package. Verify pinout and thermal characteristics before substitution.