LM2931(2007) データシートの表示（PDF） - ON Semiconductor
部品番号
コンポーネント説明
一致するリスト
LM2931
(Rev.:2007)
(Rev.:2007)
ON Semiconductor
LM2931 Datasheet PDF : 23 Pages
| |||
LM2931, NCV2931 Series
100
Vin = 5.6 V
Vout = 5.0 V
IO = 100 mA
10 Vnrms 10 Hz to 10 MHz
|ZO| @ 40 kHz
TA = 25°C
1.0
Unstable
Marginally
Stable
0.1
Stable
0.01
10
100
1.0 k
10 k
|ZO|, MAGNITUDE OF CAPACITOR IMPEDANCE (mW)
Figure 22. Output Noise Voltage vs.
Output Capacitor Impedance
0.60
10 mF
0.50 22 mF
47 mF
0.40 100 mF
Unstable
0.30
Stable
0.20
Note − Optimum stability uses a 22 mF
0.10
output capacitor. Output capacitor values
below 10 mF are not recommended.
0.00
0 10 20 30 40 50 60 70 80 90 100
OUTPUT CURRENT (mA)
Figure 23. Output Capacitor ESR Stability vs.
Output Load Current
170
3.2
150
PD(max) for TA = 50°C
2.8
130
2.4
110
90
70
Graph represents symmetrical layout 2.0
ÎÎÎÎÎÎÎÎÎÎÎ L
2.0 oz.
Copper
1.6
ÎÎÎÎÎÎ 1.2
L
3.0 mm
50
0.8
RqJA
30
0.4
0
10
20
30
40
50
L, LENGTH OF COPPER (mm)
Figure 24. SOP−8 Thermal Resistance and Maximum
Power Dissipation versus P.C.B. Copper Length
100
Free Air
90
Mounted
Vertically
80
Minimum
70
Size Pad
60
2.4
PD(max) for TA = 50°C
2.0
2.0 oz. Copper
L
1.6
ÎÎÎÎÎÎÎÎ L
1.2
ÎÎÎÎÎÎÎÎ0.8
50
40
0
5.0
10
RqJA
15
20
0.4
0
25
30
L, LENGTH OF COPPER (mm)
Figure 25. DPAK Thermal Resistance and Maximum
Power Dissipation versus P.C.B. Copper Length
http://onsemi.com
10
Share Link: