Datasheet LT3014 (Analog Devices) - 3

LT3014
ELECTRICAL CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TJ = 25°C. SYMBOL CONDITIONS MIN TYP MAX UNITS
Minimum Input Voltage ILOAD = 20mA l 3 3.3 V ADJ Pin Voltage VIN = 3.3V, ILOAD = 100μA 1.200 1.220 1.240 V (Notes 2, 3) 3.3V < VIN < 80V, 100μA < ILOAD < 20mA l 1.180 1.220 1.260 V Line Regulation ΔVIN = 3.3V to 80V, ILOAD = 100μA (Note 2) l 1 10 mV Load Regulation (Note 2) VIN = 3.3V, ΔILOAD = 100μA to 20mA 13 25 mV VIN = 3.3V, ΔILOAD = 100μA to 20mA l 40 mV Dropout Voltage ILOAD = 100μA 120 180 mV VIN = VOUT(NOMINAL) (Notes 4, 5) ILOAD = 100μA l 250 mV ILOAD = 1mA 200 270 mV ILOAD = 1mA l 360 mV ILOAD = 10mA 300 350 mV ILOAD = 10mA l 450 mV ILOAD = 20mA 350 410 mV ILOAD = 20mA l 570 mV GND Pin Current ILOAD = 0mA l 7 20 μA VIN = VOUT(NOMINAL) (Notes 4, 6) ILOAD = 100μA l 12 30 μA ILOAD = 1mA l 40 100 μA ILOAD = 10mA l 250 450 μA ILOAD = 20mA l 650 1000 μA Output Voltage Noise COUT = 0.47μF, ILOAD = 20mA, BW = 10Hz to 100kHz 115 μVRMS ADJ Pin Bias Current (Note 7) 4 10 nA Shutdown Threshold VOUT = Off to On l 1.3 2 V VOUT = On to Off l 0.25 1.3 V SHDN Pin Current (Note 8) VSHDN = 0V l 1 4 μA VSHDN = 6V l 0 1 μA Quiescent Current in Shutdown VIN = 6V, VSHDN = 0V l 1 4 μA Ripple Rejection VIN = 7V (Avg), VRIPPLE = 0.5VP-P , fRIPPLE = 120Hz, 60 70 dB ILOAD = 20mA Current Limit VIN = 7V, VOUT = 0V 70 mA VIN = 3.3V, ΔVOUT = –0.1V (Note 2) l 25 mA Input Reverse Leakage Current VIN = –80V, VOUT = 0V l 6 mA Reverse Output Current (Note 9) VOUT = 1.22V, VIN < 1.22V (Note 2) 2 4 μA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 5:
Dropout voltage is the minimum input to output voltage differential may cause permanent damage to the device. Exposure to any Absolute needed to maintain regulation at a specifi ed output current. In dropout, the Maximum Rating condition for extended periods may affect device output voltage is equal to (VIN – VDROPOUT). reliability and lifetime.
Note 6:
GND pin current is tested with VIN = VOUT (nominal) and a current
Note 2:
The LT3014 is tested and specifi ed for these conditions with the source load. This means the device is tested while operating in its dropout ADJ pin connected to the OUT pin. region. This is the worst-case GND pin current. The GND pin current
Note 3:
Operating conditions are limited by maximum junction decreases slightly at higher input voltages. temperature. The regulated output voltage specifi cation will not apply
Note 7:
ADJ pin bias current fl ows into the ADJ pin. for all possible combinations of input voltage and output current. When
Note 8:
SHDN pin current fl ows out of the SHDN pin. operating at maximum input voltage, the output current range must be limited. When operating at maximum output current, the input voltage
Note 9:
Reverse output current is tested with the IN pin grounded and the range must be limited. OUT pin forced to the rated output voltage. This current fl ows into the OUT pin and out of the GND pin.
Note 4:
To satisfy requirements for minimum input voltage, the LT3014 is tested and specifi ed for these conditions with an external resistor divider
Note 10:
The LT3014 is tested and specifi ed under pulse load conditions (249k bottom, 392k top) for an output voltage of 3.3V. The external such that TJ ≅ TA. The LT3014E is 100% tested at TA = 25°C. Performance resistor divider adds a 5µA DC load on the output. at –40°C to 125°C is assured by design, characterization, and statistical 3014fd 3