For assistance or to order, call (800) 531-5782
7 8 S T 2 0 0 S e r i e s
C H A R A C T E R I S T I C
D A T A
78ST233_ 3.3 VDC
78ST205_ 5.0 VDC
(See Note 1)
(See Note 1)
Efficiency vs Output Current
Efficiency vs Output Current
100
100
90
80
70
60
50
40
90
Vin
7.0V
Vin
7.5V
9.0V
80
8.0V
10.0V
12.0V
15.0V
12.0V
15.0V
20.0V
70
60
50
40
0.0
0.5
1.0
1.5
2.0
0.0
0.5
1.0
1.5
2.0
Iout (A)
Iout (A)
Ripple vs Output Current
Ripple vs Output Current
30
25
20
15
10
5
30
25
20
15
10
5
Vin
Vin
7.5V
7.0V
8.0V
9.0V
10.0V
12.0V
15.0V
12.0V
15.0V
20.0V
0
0
0.0
0.5
1.0
1.5
2.0
0.0
0.5
1.0
1.5
2.0
Iout (A)
Iout (A)
Thermal Derating (Ta) (See Note 2)
Thermal Derating (Ta) (See Note 2)
2.0
1.5
1.0
0.5
0.0
2.0
1.5
1.0
0.5
0.0
70°C
No Derating
@ 85°C
85°C
7
9
11
13
15
8
10
12
14
16
18
20
Vin (Volts)
Vin (Volts)
Power Dissipation vs Output Current
Power Dissipation vs Output Current
2.0
1.5
1.0
0.5
0.0
2.0
1.5
1.0
0.5
0.0
Vin
7.0V
Vin
7.5V
8.0V
9.0V
10.0V
12.0V
15.0V
12.0V
15.0V
20.0V
0.0
0.5
1.0
1.5
2.0
0.0
0.5
1.0
1.5
2.0
Iout (A)
Iout (A)
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 Note)
Power Trends, Inc. 27715 Diehl Road, Warrenville, IL 60555 (800) 531-5782 Fax: (630) 393-6902 http://www.powertrends.com
TI [ TEXAS INSTRUMENTS ]
