LM5009SDC/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM5009SDC/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-pin WSON package and is rated for operation between -40°C and +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Employs a constant on-time operating principle for simplified external component selection and fast transient response.
• Supports wide input voltage ranges suitable for industrial and automotive bus architectures.
• Integrates thermal shutdown protection to safeguard the device under overload conditions.

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial point-of-load regulation
• Automotive electronics power distribution
• General-purpose DC-DC step-down conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against official manufacturer documentation to confirm pinout compatibility and environmental ratings. Ensure the procurement channel sources directly from authorized distributors to guarantee authenticity. Cross-reference the datasheet revision date with your design requirements to account for any potential parameter updates or manufacturing changes.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a non-synchronous topology meets efficiency requirements within the specified current limits. Consider the COT control method if minimizing external passive components is a priority. Verify that the required output voltage falls within the supported adjustable range and that the input supply remains above the minimum threshold.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM5009 family of high-voltage buck converters designed for robust performance in demanding environments. It serves as a cost-effective solution for applications requiring moderate output currents without the complexity of synchronous rectification. The family emphasizes ease of design implementation through its fixed-frequency constant on-time control scheme.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM5009MM/NOPB

Voltage Regulators - DC DC Switching Regulators FAQ

Is the LM5009SDC/NOPB a synchronous converter?

No, it is a non-synchronous buck regulator that uses an internal high-side switch and relies on an external diode for the low-side path.

What control architecture does this device use?

It utilizes a constant on-time (COT) control architecture, which allows for rapid transient response and reduced external component count.