LM2931ACD2TR4 ONSEMI [ON Semiconductor], LM2931ACD2TR4 Datasheet - Page 10

• Manufacturer Part Number: LM2931ACD2TR4
• Description: 100 mA, Adjustable Output, LDO Voltage Regulator with 60 V Load Dump Protection
• Manufacturer: ONSEMI [ON Semiconductor]

0.01
100
1.0
0.1
10
10
V
V
I
V
|Z
T
O
A
in
out
n
O
= 100 mA
rms 10 Hz to 10 MHz
= 25°C
= 5.6 V
| @ 40 kHz
= 5.0 V
Figure 22. Output Noise Voltage vs.
|Z
O
|, MAGNITUDE OF CAPACITOR IMPEDANCE (mW)
Output Capacitor Impedance
100
100
170
150
130
Figure 24. SOP−8 Thermal Resistance and Maximum
110
40
90
80
70
60
50
Figure 25. DPAK Thermal Resistance and Maximum
90
70
50
30
Power Dissipation versus P.C.B. Copper Length
Power Dissipation versus P.C.B. Copper Length
0
0
1.0 k
Vertically
Mounted
Free Air
Unstable
Marginally
Stable
Stable
5.0
LM2931, NCV2931 Series
10
Minimum
Size Pad
L, LENGTH OF COPPER (mm)
L, LENGTH OF COPPER (mm)
R
http://onsemi.com
10
qJA
10 k
20
Graph represents symmetrical layout
L
10
P
15
Î Î Î
Î Î Î
Î Î Î
D(max)
Copper
2.0 oz.
P
0.40
0.30
0.20
0.10
R
0.60
0.50
L
0.00
D(max)
qJA
30
for T
0
20
Î Î Î
Î Î Î
A
100 mF
10 mF
22 mF
47 mF
Figure 23. Output Capacitor ESR Stability vs.
for T
= 50°C
Î Î Î Î
Î Î Î Î
Î Î Î Î
Î Î Î Î
10
L
2.0 oz. Copper
A
= 50°C
40
Î Î
Î Î Î Î
25
20
L
3.0 mm
30
Output Load Current
OUTPUT CURRENT (mA)
30
50
Note − Optimum stability uses a 22 mF
output capacitor. Output capacitor values
below 10 mF are not recommended.
2.4
1.6
1.2
0.8
0.4
0
2.0
3.2
2.8
2.4
2.0
1.6
1.2
0.8
0.4
40
50
Unstable
Stable
60
70
80
90
100