MAX6795TPSD2+

The MAX6795TPSD2+ is a high voltage, micropower, single linear regulator with supervisory functions in 20 pin TQFN package. This ultralow quiescent current, single output linear regulator has wide 5V to 72V operating input range, allowing it to withstand automotive load dump conditions while consuming only 68µA. It offers standard output voltage of 3.3V and can be adjusted to any voltage from 1.8V to 11V. The device features open-drain, active-low RESET output with a fixed output reset threshold that is 92.5%/87.5% of the regulator output OUT/OUT1. The reset output asserts low when OUT/OUT1 drops below the reset threshold and remains low for the fixed or capacitor adjustable reset timeout period after OUT/OUT1 exceeds the reset threshold. It provides a watchdog input that monitors a pulse train from the microprocessor (µP) and generates reset pulses if the watchdog input remains high or low for duration longer than watchdog timeout period.

• Output voltage of 3.3V, active-low reset timeout period of 12.5ms, reset threshold of 2.888V
• Watchdog disable output, single output capable of delivering up to 300mA
• Single output MAX6795 feature one enable input (ENABLE)
• Hold input (active-low HOLD) aids implementation of self holding circuit without external components
• Low dropout voltage of 1700mV at ILOAD = 300mA
• Reset timeout period (CSRT = OUT/OUT1) of 12.5ms (VOUT1/VOUT rising)
• Thermal, short-circuit and output overvoltage protection
• Supply current of 130µA at VIN = 8V, ILOAD = 300mA, shutdown supply current of 27µA (VIN = 14V)
• Fixed watchdog timeout period of 280ms (min) or period adjustable with an external capacitor
• Operating temperature range from -40°C to +125°C

Poznámky

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