LMR51635XFDDCR

Voltage Regulators - DC DC Switching Regulators Overview

The LMR51635XFDDCR is a synchronous buck converter from the Simple Switcher family, manufactured by Texas Instruments. It operates with an input voltage range of 4.3V to 60V and provides a programmable output voltage between 800mV and 30V. The device delivers up to 3.5A of output current with a fixed switching frequency of 400kHz. It features a low quiescent current of 26µA and supports junction temperatures from -40°C to +150°C. Packaged in a compact SOT-23-THIN-6 housing, it integrates protection mechanisms including overcurrent, thermal, and UVLO.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification for high efficiency
• Fixed 400kHz switching frequency reduces external component size
• Programmable soft-start limits inrush current
• Built-in cycle-by-cycle current limit and thermal shutdown

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial point-of-load regulation
• Infotainment system power distribution
• Base station bias supplies
• Automotive electronics modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number against official Texas Instruments documentation to ensure correct suffixes and package type. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Cross-reference datasheet revisions to validate pinout compatibility and electrical specifications before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a wide input voltage range up to 60V is required in a minimal footprint. It is suitable for applications needing moderate current capability with fixed frequency operation. Consider the thermal performance within the SOT-23-THIN-6 package relative to ambient conditions and PCB copper area available for heat dissipation during continuous load operation.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LMR516x5 series of Simple Switcher regulators. These parts are designed for space-constrained designs requiring robust protection features. The series offers various current ratings and packages, with this specific model focusing on 3.5A output in a thin small-outline transistor configuration.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Consult official manufacturer substitution guides for direct replacements. Verify equivalent input voltage ranges, current capabilities, and package dimensions. Ensure control loop stability and thermal characteristics match the original design requirements when considering alternative components.