LMR23630ADDAR

Voltage Regulators - DC DC Switching Regulators Overview

The LMR23630ADDAR 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 a continuous output current of 3 A. The device operates with a fixed switching frequency of 400 kHz, which can be adjusted or synchronized externally. It features integrated synchronous rectification and peak current mode control for simplified loop compensation. The adjustable output voltage ranges from 1 V to 28 V. Operating junction temperature spans from -40°C to +125°C. The component is housed in an 8-pin HSOIC package with a PowerPAD thermal pad.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification eliminates external Schottky diodes for improved efficiency.
• Peak current mode control enables simple control loop compensation and provides cycle-by-cycle current limiting.
• Internal loop compensation minimizes the number of required external components.
• Flexible switching options include forced PWM for low ripple and PFM for light-load efficiency.

Voltage Regulators - DC DC Switching Regulators Applications

• PLC CPU power supplies
• HVAC control systems
• Elevator control units

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix ADDAR against the manufacturer datasheet to confirm the tape-and-reel packaging format. Ensure the order matches the exact pinout and thermal characteristics defined for this variant. Cross-reference the RoHS compliance status and moisture sensitivity level prior to procurement. Confirm availability through authorized distributors as supply may vary by region.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a wide input voltage range up to 36 V is required alongside a 3 A load capacity. It is suitable for designs needing minimal external component counts due to internal compensation. Consider the 400 kHz frequency for balancing size and efficiency. Verify that the operating temperature range meets the environmental requirements of the target application.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the SIMPLE SWITCHER family of DC-DC converters. It shares pin compatibility with lower current variants like the LMR23610 and LMR23625 within the same package. This allows for design flexibility and PCB layout reuse across different current requirements while maintaining the same footprint and control architecture.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LMR23630ADDAG4 is a tube-packaged alternative with identical electrical specifications.

Voltage Regulators - DC DC Switching Regulators FAQ

Does the LMR23630ADDAR support frequency synchronization?

Yes, the device allows for external clock synchronization to align the switching frequency with other system clocks.

What protection features are included?

The device includes cycle-by-cycle current limiting, hiccup-mode short-circuit protection, and thermal shutdown.