L4973 STMicroelectronics, L4973 Datasheet - Page 8

• Manufacturer Part Number: L4973
• Description: 3.5A STEP DOWN SWITCHING REGULATOR
• Manufacturer: STMicroelectronics

L4973V3.3 - L4973V5.1 - L4973D3.3 - L4973D5.1
Figure 4: Stand by Drain Current vs. input
Figure 6: Reference Voltage vs. Input Voltage
Figure 8: Inhibit Current vs. Inhibit Voltage
8/16
V
Ibias
( A)
( A)
5.15
5.05
Iinh
100
150
100
-50
5.1
5.0
(V)
50
50
REF
0
0
0
0
Voltage
(Pin 16)
(Pin 10)
V
inh
10
10
Vcc=35V
Pin 10
= 5V
Tj=25 C
Pin 16
5
20
20
10
30
30
25 C
125 C
40
40
Tj=0 C
Tj=125 C
15
50 V
50 V
D97IN635A
D97IN636A
D97IN651
Vinh(V)
CC
CC
(V)
(V)
Figure 5: Reference Voltage vs. Junction
Figure 7: Reference Voltage vs. Reference Input
Figure 9: Line Regulation (see fig. 1)
V
V
5.12
5.08
5.06
5.15
5.05
V
(V)
5.1
5.2
5.1
5.0
4.9
(V)
5.1
5.0
(V)
REF
REF
O
-40
0
0
-20
Temperature (Pin 16)
Current
10
10
0
Vcc=10V
20
20
Vcc=35V
20
Tj=25 C
30
30
40
Vcc=40V
Tj=125 C
Tj=25 C
60
40
40
Pin 16
I
O
= 1A
80
50 I
50
D97IN639A
D97IN638
100
D97IN637
REF
V
Tj( C)
CC
(mA)
(V)