L4973
Figure 13. Reference voltage vs.
input voltage (pin 16)
V
REF
(V)
Tj=25˚C
Pin 16
Typical characteristics
Figure 14. Reference voltage vs.
reference input current
V
REF
(V)
D97IN638
D97IN636A
5.15
5.2
Vcc=40V
5.1
5.1
Vcc=10V
5.05
5.0
Tj=25˚C
5.0
0
10
20
30
40
50 V
CC
(V)
4.9
0
10
20
30
40
50 I
REF
(mA)
Figure 15. Inhibit current vs. inhibit
voltage (pin 10)
Iinh
(µA)
Vcc=35V
Pin 10
Tj=0˚C
Figure 16. Line regulation (see
D97IN651
V
O
(V)
D97IN639A
100
Tj
=2
C
5˚
5.12
Tj=125˚C
50
Tj=125˚C
5.1
Tj=25˚C
0
5.08
I
O
= 1A
-50
0
5
10
15
Vinh(V)
5.06
0
10
20
30
40
50
V
CC
(V)
Figure 17. Load regulation (see
Figure 18. Line regulation (see
V
O
(V)
V
CC
= 35V
D97IN640
V
O
(V)
3.35
3.34
D97IN660A
5.15
Tj=125˚C
Tj=125˚C
Tj=25˚C
5.1
Tj=25˚C
3.33
3.32
5.05
3.31
5.0
0
1
2
3
I
O
(A)
3.3
0
10
20
30
I
O
= 1A
40
50
V
CC
(V)
13/27
STMICROELECTRONICS [ STMICROELECTRONICS ]
