Datasheet LT3023 (Analog Devices) - 3

LT3023
ELECTRICAL CHARACTERISTICS The
l
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C. (Note 2) PARAMETER CONDITIONS MIN TYP MAX UNITS
Line Regulation (Note 3) ΔVIN = 2V to 20V, ILOAD = 1mA l 1 10 mV Load Regulation (Note 3) VIN = 2.3V, ΔILOAD = 1mA to 100mA 1 12 mV VIN = 2.3V, ΔILOAD = 1mA to 100mA l 25 mV Dropout Voltage ILOAD = 1mA 0.10 0.15 V VIN = VOUT(NOMINAL) (Notes 5, 6, 11) ILOAD = 1mA l 0.19 V ILOAD = 10mA 0.17 0.22 V ILOAD = 10mA l 0.29 V ILOAD = 50mA 0.24 0.28 V ILOAD = 50mA l 0.38 V ILOAD = 100mA 0.30 0.35 V ILOAD = 100mA l 0.45 V GND Pin Current (Per Channel) ILOAD = 0mA l 20 45 μA VIN = VOUT(NOMINAL) (Notes 5, 7) ILOAD = 1mA l 55 100 μA ILOAD = 10mA l 230 400 μA ILOAD = 50mA l 1 2 mA ILOAD = 100mA l 2.2 4 mA Output Voltage Noise COUT = 10μF, CBYP = 0.01μF, ILOAD = 100mA, BW = 10Hz to 100kHz 20 μVRMS ADJ1/ADJ2 Pin Bias Current (Notes 3, 8) 30 100 nA Shutdown Threshold VOUT = Off to On l 0.8 1.4 V VOUT = On to Off l 0.25 0.65 V SHDN1/SHDN2 Pin Current VSHDN = 0V l 0 0.5 μA (Note 9) VSHDN = 20V l 1 3 μA Quiescent Current in Shutdown VIN = 6V, VSHDN = 0V (Both SHDN Pins) 0.01 0.1 μA Ripple Rejection (Note 3) VIN = 2.72V (Avg), VRIPPLE = 0.5VP-P, fRIPPLE = 120Hz, 55 65 dB ILOAD = 50mA Current Limit VIN = 7V, VOUT = 0V 200 mA VIN = 2.3V, ΔVOUT = –5% l 110 mA Input Reverse Leakage Current VIN = –20V, VOUT = 0V l 1 mA Reverse Output Current (Notes 3,10) VOUT = 1.22V, VIN < 1.22V 5 10 μA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 6:
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 will be equal to: VIN – VDROPOUT. reliability and lifetime.
Note 7:
GND pin current is tested with VIN = 2.44V and a current source
Note 2:
The LT3023 is tested and specifi ed under pulse load conditions load. This means the device is tested while operating in its dropout region such that TJ ≅ TA. The LT3023E is 100% tested at TA = 25°C. Performance or at the minimum input voltage specifi cation. This is the worst-case GND at – 40°C and 125°C is assured by design, characterization and correlation pin current. The GND pin current will decrease slightly at higher input with statistical process controls. The LT3023I is guaranteed over the full voltages. –40°C to 125°C operating junction temperature range.
Note 8:
ADJ1 and ADJ2 pin bias current fl ows into the pin.
Note 3:
The LT3023 is tested and specifi ed for these conditions with the
Note 9:
SHDN1 and SHDN2 pin current fl ows into the pin. ADJ1/ADJ2 pin connected to the corresponding OUT1/OUT2 pin.
Note 10:
Reverse output current is tested with the IN pin grounded and the
Note 4:
Operating conditions are limited by maximum junction OUT pin forced to the rated output voltage. This current fl ows into the OUT temperature. The regulated output voltage specifi cation will not apply pin and out the GND pin. for all possible combinations of input voltage and output current. When
Note 11:
For the LT3023 dropout voltage will be limited by the minimum operating at maximum input voltage, the output current range must be input voltage specifi cation under some output voltage/load conditions. limited. When operating at maximum output current, the input voltage See the curve of Minimum Input Voltage in the Typical Performance range must be limited. Characteristics.
Note 5:
To satisfy requirements for minimum input voltage, the LT3023 is tested and specifi ed for these conditions with an external resistor divider (two 250k resistors) for an output voltage of 2.44V. The external resistor divider will add a 5μA DC load on the output. 3023fa 3