3

LTC3403

3403f

TYPICAL PERFOR A CE CHARACTERISTICS

Efficiency vs Output Current

Efficiency vs Output Current

Efficiency vs Output Current

Oscillator Frequency

vs Temperature

(From Figure 1a)

OUTPUT CURRENT (mA)

30

90

100

20

10

80

50

70

60

40

0.1

10

100

1000

3403 G02

0

1

FORCED

CONTINUOUS

MODE

Burst Mode

OPERATION

OUTPUT CURRENT (mA)

30

90

100

20

10

80

50

70

60

40

0.1

10

100

1000

3403 G03

0

1

FORCED

CONTINUOUS

MODE

Burst Mode

OPERATION

TEMPERATURE (

°C)

–50

1.70

1.65

1.60

1.55

1.50

1.45

1.40

1.35

1.30

25

75

–25

0

50

100

125

3403 G05

2.5

55

50

65

70

75

100

85

3.0

3.5

3403 G01

60

90

95

80

4.0

4.5

OUTPUT CURRENT (mA)

30

90

100

20

10

80

50

70

60

40

0.1

10

100

1000

3403 G04

0

1

FORCED

CONTINUOUS

MODE

Burst Mode

OPERATION

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

of a device may be impaired.

Note 2: The LTC3403E 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 5: This IC includes overtemperature protection that is intended to

protect the device during momentary overload conditions. Junction

temperature will exceed 125

°C when overtemperature protection is active.

Continuous operation above the specified maximum operating junction

temperature may impair device reliability.

ELECTRICAL CHARACTERISTICS

0

100

90

80

70

60

50

40

12

3

4

3403 GO1a

100mA BURST

MODE 0PERATION

600mA FORCED

CONTINUOUS MODE

100mA FORCED

CONTINUOUS MODE