LM2696MXAX/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2696MXAX/NOPB is a synchronous buck switching regulator manufactured by Texas Instruments, formerly National Semiconductor. It operates with an input voltage range of 4.5 V to 24 V and delivers up to 3 A output current. The device features a fixed constant on-time architecture with an adjustable switching frequency from 100 kHz to 500 kHz. Output voltage is adjustable between 1.29 V and 20 V. It utilizes a 16-pin HTSSOP package and supports operation temperatures from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Constant on-time control architecture for simplified external component selection
• Integrated high-side and low-side power switches for efficient step-down conversion
• Adjustable switching frequency allows optimization for size or efficiency
• Built-in thermal shutdown and current limit protection

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation in industrial equipment
• Power supply stages for embedded systems
• Battery-powered devices requiring efficient voltage stepping
• Telecommunications infrastructure power management

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer designation as Texas Instruments, as National Semiconductor was acquired. Confirm the suffix /NOPB indicates lead-free and RoHS compliance. Ensure the package matches the 16-HTSSOP specification. Cross-reference the full part number against official TI databases to confirm availability and revision status before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a simple constant on-time topology is preferred over PWM controllers. It is suitable for designs requiring wide input voltage ranges up to 24 V. Consider the thermal performance in the HTSSOP package for high current loads. Verify that the required output voltage falls within the 1.29 V to 20 V adjustable range.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2696 family of non-synchronous and synchronous buck regulators. The MXAX/NOPB variant specifically denotes the synchronous version in a 16-lead HTSSOP package. It serves as a power management integrated circuit (PMIC) for converting higher bus voltages to lower logic or peripheral supply levels.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for LM2696M/NOPB if non-synchronous operation is acceptable. Verify compatibility with LM2697 series if different pinout or enhanced features are needed. Always consult the latest datasheet for electrical parameter variations between revisions.