PT78SR152V datasheet(2/3 Pages) TI

Part #	PT78SR152V

Description	-1.5 AMP NEGATIVE STEP-DOWN INTEGRATED SWITCHING REGULATOR

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Manufacturer	TI [Texas Instruments]

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23

CHARACTERISTIC

DA T A

PT79SR105, -5.0 VDC (See Note 1)

PT79SR112, -12.0 VDC (See Note 1)

PT79SR115, -15.0 VDC (SeeNote1)

Efficiency vs Output Current

Ripple vs Output Current

Power Dissipation vs Output Current

Note 1:

All data listed in the above graphs, except for derating data, has been developed from actual products tested at 25°C. This data is considered typical data for the ISR.

Note 2:

Thermal derating graphs are developed in free air convection cooling of 40-60 LFM soldered in a printed circuit board. (See Thermal Application Notes.)

Thermal Derating (Ta)

(See Note 2)

Thermal Derating (Ta)

(See Note 2)

Thermal Derating (Ta)

(See Note 2)

PT79SR100 Series

Iout-(Amps)

Vin-(Volts)

Iout-(Amps)

Vin-(Volts)

Iout-(Amps)

Vin-(Volts)

40

50

60

70

80

90

100

0

0.25

0.5

0.75

1

1.25

1.5

9V

10.0V

15.0V

20.0V

25.0V

30.0V

Vin

0

10

20

30

40

50

60

0

0.25

0.5

0.75

1

1.25

1.5

30.0V

25.0V

20.0V

15.0V

10.0V

9V

Vin

0

0.5

1

1.5

2

0

0.25

0.5

0.75

1

1.25

1.5

30.0V

25.0V

20.0V

15.0V

10.0V

9V

Vin

40

50

60

70

80

90

100

0

0.25

0.5

0.75

1

1.25

1.5

16.0V

20.0V

25.0V

30.0V

Vin

0

0.5

1

1.5

2

2.5

0

0.25

0.5

0.75

1

1.25

1.5

30.0V

25.0V

20.0V

16.0V

Vin

40

50

60

70

80

90

100

0

0.25

0.5

0.75

1

1.25

1.5

19.0V

21.0V

24.0V

27.0V

30.0V

Vin

0

30

60

90

120

150

0

0.25

0.5

0.75

1

1.25

1.5

30.0V

27.0V

24.0V

21.0V

19.0V

Vin

0

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

7

9 11 13 15 17 19 21 23 25 27 29 31

60˚C

70˚C

85˚C

50˚C

0

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

15

17

19

21

23

25

27

29

31

60˚C

70˚C

85˚C

50˚C

0

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

18

20

22

24

26

28

30

60˚C

70˚C

85˚C

50˚C

0

20

40

60

80

100

0

0.25

0.5

0.75

1

1.25

1.5

30.0V

25.0V

20.0V

16.0V

Vin

0

0.5

1

1.5

2

2.5

0

0.25

0.5

0.75

1

1.25

1.5

30.0V

27.0V

24.0V

21.0V

19.0V

Vin

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