LMR23630AFDDA

Voltage Regulators - DC DC Switching Regulators Overview

The LMR23630AFDDA is a SIMPLE SWITCHER synchronous step-down converter from Texas Instruments. It supports an input voltage range of 4 V to 36 V and delivers up to 3 A of continuous output current. The device integrates synchronous rectification and operates with a fixed switching frequency of 400 kHz, which can be synchronized to an external clock. It features peak current mode control for simple loop compensation and includes programmable soft-start. The component is housed in a 12-pin WSON package with wettable flanks and PowerPAD technology, designed for efficient thermal performance in surface-mount applications.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates high-side and low-side power switches for high efficiency without external diodes
• Features internal loop compensation to minimize external component count
• Supports forced PWM mode for low noise operation at light loads
• Includes comprehensive protection against overcurrent, short circuit, and overheating

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial automation controllers
• Building management systems
• General-purpose wide input voltage regulation

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'AFDDA' against the official datasheet to confirm pinout and thermal pad configuration. Ensure compatibility with the target PCB footprint, as the WSON-12 package requires precise soldering techniques. Confirm that the application environment stays within the specified operating temperature range of -40°C to +125°C junction temperature.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this part when a 36 V input range and 3 A output capability are required in a compact form factor. It is suitable for designs needing simplified compensation and low quiescent current for battery-backed systems. Consider the WSON-12 package for superior thermal dissipation compared to smaller alternatives. Verify if the fixed 400 kHz frequency meets EMI requirements or if synchronization is needed.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the LMR23630 family of SIMPLE SWITCHER converters. It shares architectural similarities with the LMR23610 and LMR23625, offering pin-to-pin compatibility across different current ratings. The family is designed for industrial applications requiring robust performance and ease of design implementation.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LMR23630ADDAR: Pin-compatible alternative in HSOIC-8 package with similar electrical characteristics but different thermal profile.

Voltage Regulators - DC DC Switching Regulators FAQ

Does the LMR23630AFDDA support frequency synchronization?

Yes, the device allows synchronization to an external clock signal to reduce system-wide noise.

What is the minimum operating input voltage?

The minimum operating input voltage is 4 V.