AN79N00 Series
3-pin Negative Output Voltage Regulator (300mA Type)
n Overview
The AN79N00 series is 3-pin fixed negative output volt-
age regulators. Stabilized fixed output voltage is obtained
from unstable DC input voltage without using any exter-
nal components. 12 types of output voltage are available
; –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
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 : Common
2 : Input
3 : Output
JEDEC : TO-126 (SSIP003-P-0000E)
1.44
3.5max.
1.94
+0.5
– 0.1
123
1
3
2
Common
Output
Input
Starter
Voltage
Reference
Error Amp.
+
–
R1
Q1
Pass Tr.
RSC
Current
Limiter
Thermal
Protection
R2