LTM8068

3

8068fb

For more information www.linear.com/LTM8068

ELECTRICAL CHARACTERISTICS

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 3: The LTM8068 isolation test voltage of either 2kVAC or its

equivalent of 2.83kVDC is applied for one second.

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Minimum Input DC Voltage

RUN = 2V

l

2.8

V

l

4.75

2.5

5

18

5.25

V

V

V

Not Switching

7

3

µA

mA

1

%

1

%

30

mV

Isolation Voltage

(Note 3)

2

kV

Input Short-Circuit Current

80

mA

RUN Pin Input Threshold

RUN Pin Falling

1.18

1.214

1.25

V

RUN Pin Current

2.5

0.1

µA

µA

(Note 5)

1.5

2.3

V

1.22

17.7

V

V

FB2 Pin Voltage

l

1.19

1.22

1.25

V

V

1

5

mV

2

10

mV

LDO Dropout Voltage

0.25

0.34

0.43

V

V

V

20

Note 4: The LTM8068E is guaranteed to meet performance specifications

from 0°C to 125°C. Specifications over the –40°C to 125°C internal

temperature range are assured by design, characterization and correlation

with statistical process controls. LTM8068I is guaranteed to meet

specifications over the full –40°C to 125°C internal operating temperature

range. Note that the maximum internal temperature is determined by

specific operating conditions in conjunction with board layout, the rated

package thermal resistance and other environmental factors.