LT1913EDD-PBF datasheet(4/24 Pages) LINER

Part #	LT1913EDD-PBF

Description	25V, 3.5A, 2.4MHz Step-Down Switching Regulator

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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4 / 24 page

LT1913

4

1913f

OUTPUT CURRENT (A)

0

0.5

50

70

100

1

2

2.5

1913 G01

60

90

80

1.5

3

3.5

VIN = 12V

VOUT = 5V

L = 4.7μH

f = 600kHz

VIN = 24V

OUTPUT CURRENT (A)

0

0.5

50

70

100

1

2

2.5

1913 G02

60

90

80

1.5

3

3.5

VIN = 12V

VOUT = 3.3V

L = 3.3μH

f = 600kHz

VIN = 24V

Efﬁciency

INPUT VOLTAGE (V)

5

15

1913 G06

4.0

10

20

3.0

2.5

5.5

5.0

4.5

3.5

25

TYPICAL

MINIMUM

VOUT = 3.3V

TA = 25°C

L = 4.7μH

f = 600kHz

Maximum Load Current

DUTY CYCLE (%)

0

40

1913 G08

4.5

20

60

3.5

3.0

6.0

5.5

5.0

4.0

80

100

Switch Current Limit

TYPICAL PERFOR A CE CHARACTERISTICS

SWITCH CURRENT (A)

0

15

45

60

75

120

1913 G11

30

90

105

03

12

45

Boost Pin Current

TEMPERATURE (°C)

4.0

4.5

5.5

5.0

1913 G09

3.5

3.0

2.0

2.5

6.5

6.0

DUTY CYCLE = 10 %

DUTY CYCLE = 90 %

–50

25

–25

0

50

75

100

150

125

Switch Current Limit

INPUT VOLTAGE (V)

5

15

1913 G07

4.5

10

20

3.5

3.0

5.5

5.0

4.0

25

TYPICAL

MINIMUM

VOUT = 5V

TA = 25°C

L = 4.7μH

f = 600kHz

Maximum Load Current

SWITCH CURRENT (A)

0

400

500

700

3

1913 G10

300

200

12

45

100

0

600

Switch Voltage Drop

Efﬁciency

TA = 25°C unless otherwise noted.

OUTPUT CURRENT (A)

0

0.5

50

70

100

1

2

2.5

1913 G03

60

90

80

0.5

1.5

3.0

1.0

2.5

2.0

1.5

3

3.5

VIN = 12V

VOUT = 5V

L = 4.7μH

f = 600kHz

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LT1913EDD-PBF Datasheet(PDF) 4 Page - Linear Technology

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