LM60440ARPKR

Voltage Regulators - DC DC Switching Regulators Overview

The LM60440ARPKR is a synchronous step-down converter from the LM604x0 family, manufactured by Texas Instruments. It operates with an input voltage range of 3.8 V to 36 V and delivers up to 4 A of output current. The device supports adjustable switching frequencies between 200 kHz and 2.2 MHz and provides an adjustable output voltage range from 1 V to 34 V. It features a maximum duty cycle of 98% and functions within an operating temperature range of -40°C to +150°C. The component utilizes a PKP (VQFN) package for surface-mount installation.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates high-side and low-side N-channel power MOSFETs for efficient synchronous rectification
• Supports wide input voltage ranges suitable for industrial and automotive bus architectures
• Features programmable switching frequency to optimize external component size and efficiency
• Includes comprehensive protection mechanisms such as overcurrent, thermal, and UVLO

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial point-of-load regulation
• Automotive infotainment and body control modules
• Distributed power supply systems
• Battery-powered equipment requiring high efficiency

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix ARPKR against the manufacturer datasheet to confirm package type and tape/reel specifications. Ensure compatibility with humidity sensitivity levels and reflow soldering profiles defined in the official documentation. Cross-reference the ordering part number with the latest TI product selection guide to avoid confusion with similar variants in the LM604x0 family.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution is required for high-current applications with wide input voltage variations. The adjustable frequency allows optimization for specific EMI constraints or inductor size requirements. Consider the thermal performance of the VQFN package relative to the PCB copper area and ambient conditions to ensure reliable operation at maximum load currents.

Voltage Regulators - DC DC Switching Regulators Part Context

The LM60440ARPKR belongs to the LM604x0 series of ultra-small synchronous step-down converters. This family is designed to replace traditional discrete solutions and older controller-based designs by integrating power switches into a single IC. The series targets applications demanding high power density and simplified bill of materials in space-constrained environments.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Compatible alternatives within the same family include LM60440-Q1 for automotive qualification. Other members of the LM604x0 series may offer different current ratings or pin configurations. Verify functional equivalence regarding control loop stability and thermal characteristics before substitution.