SNVSBW0A October 2022 – October 2023 LM64460-Q1
PRODUCTION DATA
The LM64460-Q1 is an easy-to-use, synchronous buck DC/DC converter designed for a wide variety of automotive applications where strict reliability and low EMI are of paramount importance. The devices operates over an input voltage range of 3.95 V to 36 V, with operation down to 3 V after start-up and transients as high as 42 V. The LM64460-Q1 delivers up to 6-A DC load current with high conversion efficiency and ultra-low input quiescent current in a very small design size.
The LM64460-Q1 operates at a default switching frequency of 2.1 MHz but can be synchronized across a frequency range of 200 kHz to 2.2 MHz. The converter includes specific features for optimal EMI performance in noise-sensitive automotive applications, such as:
Together, these features significantly reduce EMI filtering requirements, thus eliminating shielding and other expensive EMI mitigation measures, while helping to meet the CISPR 25 Class 5 automotive EMI standard for conducted and radiated emissions.
The enhanced HotRod QFN package of the LM64460-Q1 has a carefully designed wettable-flank pinout arrangement that provides additional clearance spacing between adjacent VIN, SW, or PGND power pins to improve reliability and pin FMEA. The converter also incorporates other features for comprehensive system requirements, including:
The LM64460-Q1 is qualified to AEC-Q100 grade 1 and has electrical characteristics specified up to a maximum junction temperature of 150°C. The following help provide an ideal point-of-load regulator solution for automotive applications requiring enhanced reliability and durability: