LM2696MXAX/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2696MXAX/NOPB is a Texas Instruments switching voltage regulator utilizing a buck topology. It features a constant on-time control architecture with an adjustable output voltage range from 1.254 V to 20 V. The device supports a maximum output current of 3 A and accepts input voltages between 4.5 V and 24 V. Switching frequency is programmable from 100 kHz to 500 kHz. It operates within a junction temperature range of -40°C to +125°C. The component is housed in a 16-PowerTSSOP package (HTSSOP-16) and includes protection against overcurrent, thermal shutdown, and undervoltage lockout.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Constant on-time control architecture for simplified external compensation
• Integrated high-side and low-side power switches for efficient step-down conversion
• Programmable switching frequency allows optimization for size and efficiency
• Built-in thermal shutdown and cycle-by-cycle current limiting for robust operation

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Industrial control system power supplies
• Telecommunications infrastructure equipment
• Consumer electronics requiring compact DC-DC conversion

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'AX' corresponds to the required tape and reel packaging configuration as defined by Texas Instruments. Confirm that the HTSSOP-16 footprint matches the target PCB layout dimensions. Ensure compliance with RoHS3 standards if required by the end product specifications. Cross-reference the datasheet revision history for any updates to electrical characteristics or recommended application circuits prior to final design approval.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a 3 A output current capability is required within a 24 V input limit. The constant on-time topology simplifies design compared to fixed-frequency PWM controllers. Consider the 16-pin PowerTSSOP package for space-constrained applications. Evaluate the need for external frequency programming resistors to meet specific EMI requirements. Verify that the load transient response meets system demands given the inherent characteristics of the control loop.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2696 series of SIMPLE SWITCHER® regulators. It complements other Texas Instruments buck converters like the LM26001, which offers similar functionality but with different current ratings and input voltage ranges. The series is designed for general-purpose power management in industrial and consumer markets, providing a balance of performance, ease of use, and cost-effectiveness.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2696MXE/NOPB: Same functional device but in a smaller 10-HTSSOP package; verify pin compatibility and thermal performance.