3

LTC1470/LTC1471

ELECTRICAL CHARACTERISTICS

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Delay and Rise Time (Note 5)

0.2

0.32

1.0

ms

Delay and Rise Time (Note 5)

0.2

0.52

1.0

ms

Delay and Rise Time (Note 5)

0.2

0.38

1.0

ms

temperature range.

Note 1: For the LTC1470, the two output pins (1, 8) must be connected

together and the two 3.3V supply input pins (6 , 7) must be connected

together. For the LTC1471, the two AOUT pins (1, 16) must be connected

together, the two BOUT pins (8, 9) must be connected together, the two

pins (5, 13) must be connected together.

Note 2: Power for the input logic and charge pump circuitry is derived

Note 3: Measured current is per channel with the other channel

programmed off for the LTC1471.

Note 4: The output is protected with foldback current limit which reduces

the short-circuit (0V) currents below peak permissible current levels at

higher output voltages.

Note 5: To 90% of final value.

(LTC1470 or 1/2 LTC1471)

0

0

20

40

60

80

12

3

4

1470/71 G05

100

120

PROGRAMMED TO

3.3V, NO LOAD

0

–1

0

1

2

3

12

3

4

1470/71 G04

4

5

PROGRAMMED TO OFF

0

–1

0

1

2

3

5

1

23

4

1470/71 G01

56

4

PROGRAMMED TO OFF

JUNCTION TEMPERATURE (

°C)

0

0

0.05

0.10

0.15

0.20

0.25

0.30

25

50

75

100

1470/71 G07

125

PROGRAMMED

TO 3.3V

3.3V Switch Resistance

0

0

50

100

150

200

300

1

23

4

1470/71 G03

56

250

PROGRAMMED

TO 3.3V, NO LOAD

0

0

50

100

150

200

300

1

23

4

1470/71 G02

56

250

PROGRAMMED

TO 5V, NO LOAD