TYPICAL

CHARACTERISTICS

For technical support and more information, see inside back cover or visit www.ti.com/powertrends

Programming Information

VID4=1 VID4=0

VID3 VID2 VID1 VID0

Vout

Vout

1

1

1

1

2.0V

1.30V

1

1

1

0

2.1V

1.35V

1

1

0

1

2.2V

1.40V

1

1

0

0

2.3V

1.45V

1

0

1

1

2.4V

1.50V

1

0

1

0

2.5V

1.55V

1

0

0

1

2.6V

1.60V

1

0

0

0

2.7V

1.65V

0

1

1

1

2.8V

1.70V

0

1

1

0

2.9V

1.75V

0

1

0

1

3.0V

1.80V

0

1

0

0

3.1V

1.85V

0

0

1

1

3.2V

1.90V

0

0

1

0

3.3V

1.95V

0

0

0

1

3.4V

2.00V

0

0

0

0

3.5V

2.05V

Features

1.3V to 3.5V@20A

20A “Current Booster”

Efficiency vs Output Current

Power Dissipation vs Output Current

Ordering Information

PT7709

J

J

J

J

J = 1.3 to 3.5 Volts

(For dimensions and PC board layout,

see Package Styles 800 and 810.)

Case/Pin

Configuration

Vertical Through-Hole

N

Horizontal Surface Mount

C

Logic 0 = Pin 12 potential (remote sense gnd)

Logic 1 = Open circuit (no pull-up resistors)

VID3 and VID4 may not be changed while the unit is operating.

Ripple vs Output Current

Note A:

All data in the above graphs has been developed from actual products tested at 25°C. The data is considered typical for the ISR

Note B:

SOA curves represent operating conditions at which internal components are at or below manufacturer’s maximum rated operating temperatures.

PT7709—5V

20 Amp Programmable

Next Generation “Big Hammer”

20.0

30.0

40.0

50.0

60.0

70.0

80.0

90.0

0.0

5.0

10.0

15.0

20.0

Iout (A)

200LFM

120LFM

60LFM

Nat conv

Airflow

20.0

30.0

40.0

50.0

60.0

70.0

80.0

90.0

0.0

4.0

8.0

12.0

16.0

20.0

Iout (A)

200LFM

120LFM

60LFM

Nat conv

Airflow

50

60

70

80

90

100

0

4

8

121620

Iout (A)

3.3V

2.5V

1.8V

0

10

20

30

40

50

0

4

8

12

16

20

Iout (A)

3.3V

2.5V

1.8V

0

2

4

6

8

10

0

4

8

12

16

20

Iout (A)

1.8V

2.5V

3.3V