MC78L05ACDG ON Semiconductor, MC78L05ACDG Datasheet - Page 9

• Manufacturer Part Number: MC78L05ACDG
• Description: IC REG VOLT POS 100MA 5V 8SOIC
• Manufacturer: ON Semiconductor

Specifications of MC78L05ACDG

• Regulator Topology: Positive Fixed
• Voltage - Output: 5V
• Voltage - Input: Up to 30V
• Voltage - Dropout (typical): 1.7V @ 40mA
• Number Of Regulators: 1
• Current - Output: 100mA
• Operating Temperature: 0°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Polarity: Positive
• Number Of Outputs: 1
• Output Type: Fixed
• Output Voltage: 5 V
• Output Current: 0.1 A
• Line Regulation: 150 mV
• Load Regulation: 60 mV
• Input Voltage Max: 30 V
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Limit (min): -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: MC78L05ACDGOS

Design Considerations
designed with Thermal Overload Protection that shuts
down the circuit when subjected to an excessive power
overload condition. Internal Short Circuit Protection limits
the maximum current the circuit will pass.
capacitors are not required. However, it is recommended
that the regulator input be bypassed with a capacitor if the
regulator is connected to the power supply filter with long
wire lengths, or if the output load capacitance is large. The
The MC78L00A Series of fixed voltage regulators are
In many low current applications, compensation
Input
0.33mF
The MC78L00 regulators can also be used as a current source
when connected as above. In order to minimize dissipation the
MC78L05C is chosen in this application. Resistor R determines
the current as follows:
For example, a 100 mA current source would require R to be a
50 W, 1/2 W resistor and the output voltage compliance would be
the input voltage less 7 V.
I
IB
= 3.8 mA over line and load changes
Figure 9. Current Regulator
MC78L05A
I
O
=
5.0 V
R
+ I
B
I
O
R
Grounded Load
APPLICATIONS INFORMATION
Current to
Constant
http://onsemi.com
9
input bypass capacitor should be selected to provide good
high−frequency characteristics to insure stable operation
under all load conditions. A 0.33 mF or larger tantalum,
mylar, or other capacitor having low internal impedance at
high frequencies should be chosen. The bypass capacitor
should be mounted with the shortest possible leads directly
across the regulators input terminals. Good construction
techniques should be used to minimize ground loops and
lead resistance drops since the regulator has no external
sense lead. Bypassing the output is also recommended.
+20V
0.33mF
Figure 10. ± 15 V Tracking Voltage Regulator
0.33mF
Figure 11. Positive and Negative Regulator
20V
+V
-V
0.33mF
0.33mF
I
I
MC78L15A
MPS U55
MC78LXXA
MC79LXXA
6
6.5
MC1741
4
7
-
+
MPS A70
2
3
0.1mF
0.1mF
+V
-V
10k
10k
O
O
+V
-V
O
O