LM2931ACD2TR4 ONSEMI [ON Semiconductor], LM2931ACD2TR4 Datasheet - Page 11

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

at which the regulator output no longer maintains regulation
against further reductions in input voltage. Measured when
the output decreases 100 mV from nominal value at 14 V
input, dropout voltage is affected by junction temperature
and load current.
change in the input voltage. The measurement is made under
conditions of low dissipation or by using pulse techniques
such that the average chip temperature is not significantly
affected.
change in load current at constant chip temperature.
Dropout Voltage − The input/output voltage differential
Line Regulation − The change in output voltage for a
Load Regulation − The change in output voltage for a
300
250
200
150
100
50
80
70
60
50
40
30
0
Figure 27. SOT−223 Thermal Resistance and Maximum
0
0
Thermal Resistance and Maximum Power
Dissipation versus P.C.B. Copper Length
Power Dissipation vs. P.C.B. Copper Length
Figure 26. 3−Pin and 5−Pin D
Vertically
Mounted
5.0
Free Air
5.0
LM2931, NCV2931 Series
L, LENGTH OF COPPER (mm)
L, LENGTH OF COPPER (mm)
http://onsemi.com
10
10
DEFINITIONS
Minimum
Size Pad
P
D(max)
11
15
15
P
R
D(max)
qJA
for T
device dissipation for which the regulator will operate
within specifications.
delivered to the load.
output, with constant load and no input ripple, measured
over a specified frequency range.
accelerated life test conditions with the maximum rated
voltage listed in the devices electrical characteristics and
maximum power dissipation.
Maximum Power Dissipation − The maximum total
Bias Current − That part of the input current that is not
Output Noise Voltage − The rms AC voltage at the
Long−Term Stability − Output voltage stability under
for T
A
R
= 50°C
qJA
20
20
A
2.0 oz. Copper
= 50°C
L
L
Î Î Î Î
Î Î Î Î
Î Î Î Î
Î Î Î Î
Î Î Î
Î Î Î
Î Î Î
2.0 oz. Copper
2
PAK
25
25
L
L
30
30
3.5
3.0
2.5
2.0
1.5
1.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0