LM5017SDX/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM5017SDX/NOPB is a high-voltage synchronous buck regulator from Texas Instruments, designed for wide input voltage applications. It operates with an input range of 7.5V to 100V and delivers up to 600mA output current. The device features a fixed constant on-time control architecture with a nominal frequency of 225kHz, which can be adjusted up to 1MHz via an external resistor. It supports adjustable output voltages starting from 1.225V. Packaged in an 8-pin WSON (4mm x 4mm) footprint, it ensures reliable operation across a junction temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification eliminates the need for external Schottky diodes, improving efficiency and reducing component count.
• Fixed constant on-time control architecture simplifies compensation and provides fast transient response.
• Wide input voltage capability allows direct connection to standard bus voltages without pre-regulation.

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial power supplies requiring high input voltage tolerance
• Point-of-load regulation for communication equipment
• Automotive systems compatible with AEC-Q100 standards

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm package type and tape/reel specifications. Ensure the ordering part number matches the required thermal performance and pin configuration. Cross-reference datasheet revisions to confirm compliance with current environmental regulations and material declarations before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing circuits that require high input voltage handling with moderate output current capabilities. The fixed on-time topology is suitable for designs prioritizing simplicity over programmable frequency flexibility. Evaluate thermal dissipation requirements based on the WSON-8 package size and expected load conditions within the specified operating temperature range.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM501x family of high-voltage buck regulators. It shares architectural similarities with the LM5018 and LM5019 but offers distinct output current ratings. The LM5017 specifically targets applications needing higher current density than the LM5019 while maintaining the compact form factor and high-voltage resilience characteristic of the series.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM5017SD/NOPB is a non-exposed pad variant of the same electrical specification. LM5018SDX/NOPB offers similar functionality but with a reduced 300mA output current rating. Verify pin compatibility and thermal characteristics when substituting these parts.