LMR51606YFDBVR

Voltage Regulators - DC DC Switching Regulators Overview

The LMR51606YFDBVR is a synchronous buck converter from the Texas Instruments LMR516xx family, housed in a SOT-23-6 package. It supports an input voltage range of 4V to 42V and delivers up to 600mA of output current. The adjustable output voltage spans from 800mV to 28V. Key electrical parameters include a quiescent current of 420µA and a fixed switching frequency of 1.1MHz. The device operates within a junction temperature range of -40°C to +150°C and includes integrated features such as cycle-by-cycle current limit and thermal shutdown.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-side and low-side power switches for efficient step-down conversion
• Fixed internal switching frequency simplifies external component selection
• Built-in protection mechanisms including thermal shutdown and cycle-by-cycle current limiting

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial equipment power distribution
• Infotainment systems
• Point-of-load regulation for microprocessors

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'YF' against the manufacturer's official documentation to confirm tape-and-reel packaging specifications and moisture sensitivity levels. Ensure the ordering part number matches the exact pinout and functional requirements for your design. Cross-reference with the latest datasheet revision to validate any updates to absolute maximum ratings or recommended operating conditions before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution is required for moderate current loads under 600mA. The fixed 1.1MHz frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the wide input voltage range if the supply rail fluctuates significantly between 4V and 42V. Evaluate the thermal performance in the SOT-23-6 package based on expected ambient temperatures and load currents.

Voltage Regulators - DC DC Switching Regulators Part Context

This regulator belongs to the LMR516xx series, designed for space-constrained applications requiring high efficiency. It shares architectural similarities with other members like the LMR51610 but differs in maximum output current capabilities. The family emphasizes ease of use through fixed-frequency operation and minimal external component count, targeting cost-sensitive industrial and consumer markets.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes within the same series include the LMR51603 (300mA) for lower current needs or the LMR51610 (1A) for higher capacity. Verify that the replacement maintains the SOT-23-6 footprint and compatible control loop characteristics to ensure seamless integration without PCB redesign.