LT3024IFE 查看數據表（PDF） - Linear Technology

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LT3024IFE

Dual 100mA/500mA Low Dropout, Low Noise, Micropower Regulator

Linear Technology 

LT3024

ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. (Note 2)

PARAMETER

CONDITIONS

MIN

TYP

MAX

Current Limit

Input Reverse Leakage Current

Reverse Output Current (Notes 3,10)

Output 2, VIN = 7V, VOUT = 0V

VIN = 2.3V, ΔVOUT = –0.1V

Output 1, VIN = 7V, VOUT = 0V

VIN = 2.3V, ΔVOUT = –0.1V

VIN = –20V, VOUT = 0V

VOUT = 1.22V, VIN < 1.22V

200

l 110

700

l 520

l

1

5

10

UNITS

mA

mA

mA

mA

mA

μA

Note 1: Stresses beyond those listed under Absolute Maximum Ratings

may cause permanent damage to the device. Exposure to any Absolute

Maximum Rating condition for extended periods may affect device

reliability and lifetime.

Note 2: The LT3024 is tested and specified under pulse load conditions

such that TJ ≅ TA. The LT3024E is 100% tested at TA = 25°C. Performance

at – 40°C and 125°C is assured by design, characterization and correlation

with statistical process controls. The LT3024I is guaranteed over the full

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

Note 3: The LT3024 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.

Note 5: To satisfy requirements for minimum input voltage, the LT3024 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

output voltage will be equal to: VIN – VDROPOUT.

Note 7: GND pin current is tested with VIN = 2.44V and a current source

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. Total GND pin current is equal to the sum of GND pin currents

from Output 1 and Output 2.

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: Reverse output current is tested with the IN pin grounded and the

OUT pin forced to the rated output voltage. This current flows into the OUT

pin and out the GND pin.

Note 11: For the LT3024 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.

3024fa

4

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