n Overview
The AN78N00 series is 3-pin fixed positive output volt-
age regulators. Stabilized fixed output voltage is obtained
from unstable DC input voltage without using any exter-
nal components. 12 types of fixed output voltage are avail-
able ; 4V, 5V, 6V, 7V, 8V, 9V, 10V, 12V, 15V, 18V, 20V
and 24V. They can be used widely in power circuits with
current capacitance up to 300mA.
n Features
• No external components
• Output voltage : 4V, 5V, 6V, 7V, 8V, 9V, 10V, 12V, 15V,
18V, 20V, 24V
• Short-circuit current limiting built-in
• Thermal overload protection built-in
• Output transistor safe area compensation
AN78N00 Series
3-pin Positive Output Voltage Regulator (300mA Type)
n Block Diagram
Unit:mm
8.0
3.05
3.8
11.5max.
15.0min.
0.75– 0.25 0.5– 0.1
0.5– 0.25
2.3
4.6
1.76
1 : Input
2 : Common
3 : Output
JEDEC:TO-126 (SSIP003-P-0000E)
1.44
3.5max.
1.94
+0.5
– 0.1
123
1
3
2
Input
Pass Tr
Output
Common
Starter
Voltage
Reference
Current
Source
Error Amp.
+
–
Thermal
Protection
Q1
RSC
R2
R1
Current
Limiter