LM60440AQRPKRQ1

Voltage Regulators - DC DC Switching Regulators Overview

The LM60440AQRPKRQ1 is an automotive-grade synchronous step-down DC-DC converter from 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 features a fixed switching frequency of 2.2 MHz, enabling the use of small external components. It includes spread spectrum modulation for low electromagnetic interference (EMI) performance. The integrated controller supports power sequencing via a Power Good output and allows mode selection through the MODE/SYNC pin. It is housed in a compact HotRod QFN-9 package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated spread spectrum modulation to minimize electromagnetic interference emissions
• Power Good output signal facilitates precise power supply sequencing
• MODE/SYNC pin enables flexible operation between Fixed Frequency PWM and PFM modes

Voltage Regulators - DC DC Switching Regulators Applications

• Factory automation systems
• Industrial control equipment
• Building automation infrastructure

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'RPKR' against the official datasheet to confirm package dimensions and tape-and-reel specifications. Ensure the component meets AEC-Q100 qualification requirements for your target automotive application environment. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and traceability before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing high-density power stages requiring low EMI and wide input voltage compatibility. The 2.2 MHz frequency allows for smaller inductors compared to lower-frequency alternatives. Consider the thermal performance of the HotRod package for your PCB layout constraints. Verify that the required output voltage range falls within the 1 V to 20 V specification limits.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM604x0 family of ultra-small synchronous step-down converters. It shares functional similarities with other members like the LMR60440 but offers specific automotive qualifications. The family is designed for applications demanding high efficiency and minimal footprint. It complements Texas Instruments' portfolio of PMIC solutions for industrial and automotive sectors.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LMR60440: Pin-compatible alternative with similar electrical characteristics but potentially different packaging or non-automotive grade.