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78L05
Features
• Maximum Output Current of 100mA
• Output Voltage of 5V
• Thermal Overload Protection
• Short Circuit Current Limiting
• Output Voltage Offered in ±5% Tolerance
3-terminal 5v 0.1A positive Voltage regulator
Description
The 78L05 of fixed voltage monolithic integrated
circuit voltage regulators are suitable for application
that required supply current up to100mA.
Internal Block Digram
Absolute Maximum Ratings
Parameter
Symbol
Value
Unit
Input Voltage
V
IN
30
V
Operating Temperature Range
T
OPR
0～＋125
℃
Storage Temperature Range
T
STG
-55～＋150
℃
Electrical Characteristics
(VI = 10V, IO = 40mA, 0℃≤TJ ≤125℃, CI = 0.33μF, CO = 0.1μF, unless otherwise specified. (Note)
Notes:The maximum steady state usable output current and input voltage are very dependent on the heat Sinking
and/or lead lengthof the package. The data above represent pulse test conditions with junction temperature as
indicated at the initiation of tests.
Parameter
Symbol
Conditions
Value
Unit
Min
Typ
Max
Output Voltage
V
O
Tj＝25℃
4.8
5
5.2
V
Line Regulation(Note)
△ V
O
V
I
＝7～20V，Tj＝25℃
150
mV
V
I
＝8～20V，Tj＝25℃
100
Load Regulation(Note)
△ V
O
I
O
= 1～100mA ，Tj＝25℃
60
mV
I
O
= 1～40mA， Tj＝25℃
30
Quiescent Current
I
Q
Tj＝25℃
6
mA
Quiescent Current
Change
△I
Q
I
O
=1～40mA
0.1
mA
I
O
=40mA，V
I
＝8～20V
1.5
Output Voltage Drift
△V /△T
I
O
= 5mA，T
J
= 0 to +125
-0.65
mV/℃
Output Noise Voltage
V
N
10H
Z
≤ f ≤100KH
Z
40
μV
Ripple Rejection
RR
f = 120Hz, V
I
= 8 to 18V，＝25℃
41
dB
Dropout Voltage
V
d
1.7
V
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78L05 3-terminal 5v 0.1A positive Voltage regulator
Figure 1 : Output Voltage vs AmbientTemperature
Figure 2 : Quiescent Current vs Output Current
Figure 3 : Load Characteristics
Figure 4 : Quiescent Current vs Input Voltage
Figure5 : Thermal Shutdown
Figure 6 : Output Characteristics