LT3089IDF#PBF

LINEAR TECHNOLOGY  LT3089IDF#PBF  芯片, 稳压器, LDO, 可调, 0.8A, 0V 至 34.5V, DFN-12 新

The is an 800mA single resistor rugged linear regulator with monitor in 12 pin DFN package. The Key features of IC are the extended safe operating area SOA, output current monitor, temperature monitor and programmable current limit. The device can be paralleled for higher output current or heat spreading. It withstands reverse input and reverse output-to-input voltages without reverse current flow. The precision 50µA reference current source allows a single resistor to program output voltage to any level between zero and 34.5V. The current reference architecture enables load regulation to be independent of output voltage. The IC is stable with or without input and output capacitors. The internal protection circuitry includes reverse battery and reverse current protection, current limiting and thermal limiting. It is used in all surface mount power supply, rugged industrial power supply and post regulator for switching supplies.

.

Wide input voltage range from 1.2V to 36V

.

Single resistor sets output voltage, output adjustable to 0V

.

Operating temperature range from -40°C to 125°C, junction temperature monitor is 1µA/°C

.

Output current monitor, IMON = IOUT/5000, programmable current limit

.

Load regulation typical independent of VOUT is < 1mV, line regulation typical is < 0.001%/V

.

Dropout voltage of 1.47V at ILOAD = 800mA

.

Reverse battery and reverse current protection

.

50µA SET pin current is 1% initial accuracy

.

Output voltage noise of 27µVRMS

.

Parallel multiple devices for higher current or heat spreading