LT3471

3

3471fb

ELECTRICAL CHARACTERISTICS

Quiescent Current

vs Temperature

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

SHDN Input Voltage Low

Quiescent Current ≤ 1μA

0.3

V

SHDN Pin Bias Current

22

0

36

0.1

μA

μA

The

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 LT3471E is guaranteed to meet performance specifications

from 0°C to 70°C. Specifications over the –40°C to 85°C operating

temperature range are assured by design, characterization and

correlation with statistical process controls.

Note 3: Current flows out of the pin.

Note 4: See Typical Performance Characteristics for guaranteed current

limit vs duty cycle.

TYPICAL PERFORMANCE CHARACTERISTICS

TEMPERATURE (°C)

–50

–25

1.6

2.0

2.6

0

50

75

3471 G01

1.8

2.4

2.2

25

100

125

TEMPERATURE (°C)

–50

–25

0.990

1.000

1.010

0

50

75

3471 G02

0.995

1.005

25

100

125

3471 G03

VOLTAGE

100mV/DIV

SHDN/SS Current

vs SHDN/SS Voltage

Current Limit vs Duty Cycle

Switch Saturation Voltage

vs Switch Current

SHDN/SS VOLTAGE 1V/DIV

3471 G04

SHDN/SS

CURRENT

20μV/DIV

DUTY CYCLE (%)

0

1.2

1.6

2.2

2.0

80

3471 G05

0.8

0.4

1.0

1.4

1.8

0.6

0.2

0

20

40

60

100

TYPICAL

GUARANTEED

SW CURRENT (A)

0

800

700

600

500

400

300

200

100

0

1.6

3471 G06

0.4

0.8

1.2

2.0

1.4

0.2

0.6

1.0

1.8

90°C

25°C