Analog Devices Inc.

Category: Power Management ICs

The MAX5080/MAX5081 are 250kHz PWM step-downDC-DC converters with an on-chip, 0.3Ω high-sideswitch. The input voltage range is 4.5V to 40V for theMAX5080 and 7.5V to 40V for the MAX5081. The outputis adjustable from 1.23V to 32V and can deliver up to1A of load current.Both devices utilize a voltage-mode control scheme forgood noise immunity in the high-voltage switching environmentand offer external compensation allowing formaximum flexibility with a wide selection of inductor valuesand capacitor types. The switching frequency isinternally fixed at 250kHz and can be synchronized toan external clock signal through the SYNC input. Lightload efficiency is improved by automatically switchingto a pulse-skip mode.All devices include programmable undervoltage lockoutand soft-start. Protection features include cycle-by-cyclecurrent limit, hiccup-mode output short-circuitprotection, and thermal shutdown. Both devices areavailable in a space-saving, high-power (2.7W), 16-pinTQFN package and are rated for operation over the-40°C to +125°C temperature range.ApplicationsAutomotiveDistributed PowerFireWire® Power SuppliesIndustrial

$2.74 - $6.46