3

LT3027

3027f

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

GND Pin Current (Per Channel)

●

25

50

µA

●

60

120

µA

(Notes 5, 7)

●

250

400

µA

●

12

mA

●

2.4

4

mA

Output Voltage Noise

20

ADJ1/ADJ2 Pin Bias Current

(Notes 3, 8)

30

100

nA

Shutdown Threshold

●

0.8

1.4

V

●

0.25

0.65

V

SHDN1/SHDN2 Pin Current

●

0

0.5

µA

(Note 9)

●

13

µA

Quiescent Current in Shutdown

0.01

0.1

µA

Ripple Rejection (Note 3)

55

65

dB

Current Limit

200

mA

●

110

mA

Input Reverse Leakage Current

●

1mA

The

ELECTRICAL CHARACTERISTICS

Note 5: To satisfy requirements for minimum input voltage, the LT3027 is

tested and specified 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.

Note 6: Dropout voltage is the minimum input to output voltage differential

needed to maintain regulation at a specified output current. In dropout, the

load. This means the device is tested while operating in its dropout region

or at the minimum input voltage specification. This is the worst-case GND

pin current. The GND pin current will decrease slightly at higher input

voltages.

Note 8: ADJ1 and ADJ2 pin bias current flows into the pin.

Note 9: SHDN1 and SHDN2 pin current flows into the pin.

Note 10: For the LT3027 dropout voltage will be limited by the minimum

input voltage specification under some output voltage/load conditions. See

the curve of Minimum Input Voltage in the Typical Performance

Characteristics.

Note 1: Absolute Maximum Ratings are those values beyond which the life

of a device may be impaired.

Note 2: The LT3027 regulator is tested and specified under pulse load

performance specifications from 0°C to 125°C junction temperature.

Specifications over the – 40°C to 125°C operating junction temperature

range are assured by design, characterization and correlation with

statistical process controls. The LT3027I is guaranteed and tested over the

full – 40°C to 125°C operating junction temperature range.

Note 3: The LT3027 is tested and specified for these conditions with the

ADJ1/ADJ2 pin connected to the corresponding OUT1/OUT2 pin.

Note 4: Operating conditions are limited by maximum junction

temperature. The regulated output voltage specification will not apply for

all possible combinations of input voltage and output current. When

operating at maximum input voltage, the output current range must be

limited. When operating at maximum output current, the input voltage

range must be limited.