LMR36503R5RPER

Voltage Regulators - DC DC Switching Regulators Overview

The LMR36503R5RPER is a synchronous step-down DC/DC converter manufactured by Texas Instruments. It operates within an input voltage range of 3 V to 65 V and provides a fixed output voltage of 5 V with a maximum output current of 300 mA. The device features a low quiescent current of 4 uA and supports adjustable switching frequencies between 400 kHz and 1 MHz. It is housed in a VQFN-HR-9 package, suitable for surface mount installation, and functions reliably across an operating temperature range from -40 C to +150 C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous buck topology for efficient power conversion
• Ultra-low quiescent current consumption for extended battery life
• Wide input voltage capability supporting high-voltage sources
• Compact VQFN-HR-9 package design for space-constrained applications

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial control systems requiring isolated or non-isolated power regulation
• Automotive electronics compatible with wide input voltage ranges
• Embedded systems utilizing high-voltage bus architectures
• Point-of-load regulation for microcontrollers and sensors

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix R5RPER confirms the fixed 5 V output configuration. Ensure compatibility with the VQFN-HR-9 package footprint during PCB layout. Confirm moisture sensitivity level requirements for storage and reflow soldering processes. Check for RoHS compliance documentation if required by your manufacturing standards.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5 V output is required from a wide input range up to 65 V. Consider the 300 mA current limit for load requirements. Evaluate the thermal performance within the VQFN-HR-9 package for your specific ambient conditions. Compare against adjustable variants if flexible output voltages are needed instead.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LMR36503 series of ultra-small synchronous buck converters. It shares architectural similarities with other members like the LMR36503RFRPER but differs in output configuration. The series targets applications demanding high efficiency and small form factors in industrial and automotive environments.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LMR36503RFRPER offers adjustable output voltage instead of fixed 5 V. LMR36503RS5QRPERQ1 is the automotive qualified version with similar specifications. Verify pinout and thermal characteristics before substitution.