LMR14020SDDAR

Voltage Regulators - DC DC Switching Regulators Overview

The LMR14020SDDAR is a SIMPLE SWITCHER® step-down converter from Texas Instruments, housed in an 8-SO PowerPAD package. It operates with an input voltage range of 4 V to 40 V and delivers up to 2 A output current. The adjustable output voltage spans from 800 mV to 28 V. Integrated features include a fixed 2.2 MHz switching frequency and a low quiescent current of 40 µA. The device supports thermal shutdown and operates within a junction temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-side and low-side power switches for efficient buck conversion
• Fixed 2.2 MHz switching frequency enables compact external component sizing
• Low quiescent current consumption reduces standby power loss
• Built-in thermal shutdown protection safeguards against overheating

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for industrial equipment
• Power supply stages for embedded computing systems
• Battery-powered portable devices requiring efficient voltage stepping
• General-purpose DC-DC conversion in automotive electronics

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'R' confirms tape-and-reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the selected variant matches the required thermal performance for the intended application environment. Cross-reference the exact part number with the latest datasheet revision to validate pinout and electrical specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for designs requiring a wide input voltage range up to 40 V with moderate current demands. The fixed 2.2 MHz frequency allows for smaller inductors and capacitors compared to lower-frequency alternatives. Consider the SO-PowerPAD package for its thermal dissipation capabilities in space-constrained layouts. Evaluate the 40 µA quiescent current against system sleep mode requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LMR14020 series of SIMPLE SWITCHER regulators. It shares architectural similarities with the LMR14030, which offers higher current capacity. The SDDAR designation specifically indicates the reel-packaged version of the LMR14020SDDA tube variant. Both variants utilize the same 8-pin PowerSOIC footprint.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LMR14020SDDA is the tube-packaged equivalent with identical electrical characteristics. LMR14030SDDAR serves as a higher-current alternative within the same family.