LMR14030SDDAR

Voltage Regulators - DC DC Switching Regulators Overview

The LMR14030SDDAR is a SIMPLE SWITCHER step-down DC/DC converter from Texas Instruments. It operates with an input voltage range of 4 V to 40 V and delivers up to 3.5 A output current. The adjustable output voltage spans from 800 mV to 28 V. Integrated features include a fixed 2.2 MHz switching frequency, programmable soft-start, and cycle-by-cycle current limit. The device supports shutdown mode with low quiescent current of 40 uA. It is housed in an 8-SO-PowerPAD package and functions within a junction temperature range of -40°C to 125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-side N-channel MOSFET for compact design
• Fixed 2.2 MHz switching frequency reduces external component size
• Programmable soft-start limits inrush current during startup
• Cycle-by-cycle current limiting protects against overload conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial point-of-load regulation
• Battery-powered equipment power management
• Embedded systems distribution networks
• Telecommunications infrastructure supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'R' indicates tape and reel packaging configuration. Confirm RoHS compliance status through official manufacturer documentation. Ensure ESD handling protocols are followed due to moisture sensitivity classification. Cross-reference pinout diagrams with target PCB layout requirements before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when input voltages exceed standard 5 V or 12 V rails but remain below 40 V. The 3.5 A capability suits moderate load applications requiring efficient buck conversion. Consider the 8-SO-PowerPAD package for thermal performance needs. Evaluate the fixed 2.2 MHz frequency against electromagnetic interference constraints in sensitive environments.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LMR14030 series of non-synchronous buck converters. It shares architectural similarities with the LMR14020 (2 A) and LMR14050 (5 A) variants. The family emphasizes simplicity and small footprint solutions for general-purpose power management tasks across industrial and consumer electronics sectors.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LMR14030SQDPRTQ1 serves as an automotive-grade alternative with AEC-Q100 qualification.