PT6400 Datasheet, PDF (2/5 Pages) Texas Instruments – 3 AMP ADJUSTABLE INTEGRATED SWITCHING REGULATOR

CHARACTERISTIC DATA
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PT6400 Series
PT6408, 1.2 VDC (See Note 1)
PT6407, 2.1 VDC (See Note 1)
PT6405, 3.3 VDC (See Note 1)
Efficiency vs Output Current
100
90
Vin
80
4.5V
70
5.0V
5.5V
60
50
40
0.0 0.5 1.0 1.5 2.0 2.5 3.0
Iout-(Amps)
Efficiency vs Output Current
100
90
Vin
80
4.5V
70
5.0V
5.5V
60
50
40
0 0.5 1 1.5 2 2.5 3
Iout-(Amps)
Ripple vs Output Current
100
80
60
Vin
5 .5V
40
5 .0V
20
4 .5V
0
0
0 .5
1
1 .5
2
2 .5
3
Iout-(Amps)
Thermal Derating (Ta)
3
2.5
(See Note 2)
85°C
2
1.5
1
0.5
0
4.5
4 .7 5
5
5 .2 5
5.5
Vin-(Volts)
Power Dissipation vs Output Current
3.0
2.5
Vin
2.0
5.5V
1.5
5.0V
4.5V
1.0
0.5
0.0
0.0 0.5 1.0 1.5 2.0 2.5 3.0
Iout-(Amps)
Ripple vs Output Current
100
80
Vin
60
5.5V
5.0V
40
4.5V
20
0
0 0.5 1 1.5 2 2.5 3
Iout-(Amps)
Thermal Derating (Ta) (See Note 2)
3
85°C
2.5
2
1.5
1
0.5
0
4.5
4.75
5
5.25
5.5
Vin-(Volts)
Power Dissipation vs Output Current
2.5
2
Vin
5 .5 V
1.5
5 .0 V
1
4 .5 V
0.5
0
0 0.5 1 1.5 2 2.5 3
Iout-(Amps)
Efficiency vs Output Current
100
90
V in
80
4.5V
70
5.0V
5.5V
60
50
40
0 0.5 1 1.5 2 2.5 3
Iout-(Amps)
Ripple vs Output Current
100
80
60
40
20
0
0 0.5 1 1.5 2 2.5 3
Vin
5.5V
5.0V
4.5V
Iout-(Amps)
Thermal Derating (Ta) (See Note 2)
3
85°C
2.5
2
1.5
1
0.5
0
4.5
4.75
5
5.25
5.5
Vin-(Volts)
Power Dissipation vs Output Current
2.5
2
Vin
1.5
5.5V
5.0V
1
4.5V
0.5
0
0 0.5 1 1.5 2 2.5 3
Iout-(Amps)
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. (See Thermal Application Notes.)
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