4

LTC1142/LTC1142L/LTC1142HV

ELECTRICAL C

C

HARA TERISTICS

temperature range.

Note 2: This current is for one regulator block. Total supply current is the

sum of Pins 10 and 24 currents. Dynamic supply current is higher due to

the gate charge being delivered at the switching frequency. See the

Applications Information section.

time increases approximately 40%.

Note 4: The LTC1142/LTC1142HV-ADJ/LTC1142HV/LTC1142L-ADJ are

not tested and quality-assurance sampled at – 40

°C to 85°C. These

specifications are guaranteed by design and/or correlation.

CC

HARA TERISTICS

A

TYPICALPERFOR

CE

5V Output Efficiency

LOAD CURRENT (A)

0.01

100

95

90

85

0.1

1

1142 G01

2

3.3V Output Efficiency

LOAD CURRENT (A)

0.01

100

95

90

85

0.1

1

1142 G02

2

5V Efficiency vs Input Voltage

INPUT VOLTAGE (V)

0

100

98

96

94

92

90

88

86

84

82

80

16

1142 G03

4

8

12

20

FIGURE 1 CIRCUIT

3.3V Efficiency vs Input Voltage

Load Regulation

LOAD CURRENT (A)

0

20

0

–20

– 40

– 60

– 80

– 100

2.0

1142 G06

0.5

1.0

1.5

2.5

FIGURE 1 CIRCUIT

INPUT VOLTAGE (V)

0

40

30

20

10

0

– 10

– 20

– 30

–40

16

1142 G05

4

8

12

20

FIGURE 1 CIRCUIT

Line Regulation

INPUT VOLTAGE (V)

0

100

98

96

94

92

90

88

86

84

82

80

16

1142 G04

4

8

12

20

FIGURE 1 CIRCUIT