LT3469

3

3469f

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Switch Leakage Current

0.01

1

µA

740

1100

mV

Diode Reverse Leakage Current

0.1

1

µA

ELECTRICAL CHARACTERISTICS

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

of a device may be impaired.

Note 2: The LT3469E is guaranteed to meet performance specifications

from 0

°C to 85°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 limit is guaranteed by design and/or correlation to static

test. Slope compensation reduces current limit at higher duty cycles.

TYPICAL PERFOR A CE CHARACTERISTICS

Schottky Forward Voltage

Schottky Reverse Leakage

FORWARD VOLTAGE (mV)

200

150

200

250

500

700

1000

3469 G07

100

50

0

300 400

600

800 900

100

°C

–50

°C

25

°C

TEMPERATURE (

°C)

–50

0

5

10

15

20

25

–25

025

50

3469 G09

75

100

Switching Frequency

FB Pin Voltage and Bias Current

TEMPERATURE (

°C)

–50

1.4

1.2

1.0

0.8

0.6

0.4

0.2

0

25

75

3469 G10

–25

0

50

100

TEMPERATURE (

°C)

–50

1.175

1.195

1.215

1.235

1.255

1.275

0

10

20

30

40

50

–25

025

50

3469 G11

75

100

CURRENT

VOLTAGE

(Switching Regulator)

0

1.2

1.8

2.0

16

3469 G05

1.0

0.8

0

4

8

12

14

2

6

10

0.4

2.4

2.2

1.6

1.4

0.6

0.2

–50

°C

100

°C

25

°C

DUTY CYCLE (%)

0

150

200

250

80

3469 G06

100

50

0

20

40

60

100

Current Limit vs Duty Cycle