LT3081IFE#PBF

LT3081IFE#PBF is a 1.5A low dropout linear regulator designed for rugged industrial applications. Key features of the IC are the extended safe operating area (SOA), output current monitor, temperature monitor and programmable current limit. The LT3081 can be paralleled for higher output current or heat spreading. The device withstands reverse input and reverse output-to-input voltages without reverse current flow. The LT3081’s 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 makes load regulation independent of output voltage. The LT3081 is stable with or without input and output capacitors. Applications include all surface mount power supply, rugged industrial power supply, post regulator for switching supplies, low output voltage supply, intrinsic safety applications.

• Wide input voltage range from 1.2V to 36V, stable with or without input/output capacitors
• Single resistor sets output voltage, output current monitor: IMON = IOUT/5000
• Parallel multiple devices for higher current or heat spreading
• Programmable current limit, reverse-battery and reverse-current protection
• Error amplifier RMS output noise is 27µVRMS typical at (ILOAD = 1.5A, 10Hz ≤ f ≤ 100KHz)
• Dropout voltage is 1.21V typical at (ILOAD = 100mA, TJ = 25°C)
• Internal current limit is 2A typical at (VIN = 5V, VSET = 0V, VOUT = -0.1V)
• Offset voltage is 1.5mV maximum at (VIN = 2V, ILOAD = 5mA)
• Ripple rejection is 90dB typical at (f = 120Hz, TJ = 25°C)
• Operating junction temperature range from -40°C to 125°C, 16-lead plastic TSSOP package

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party