TLE4274 Datasheet, PDF (2/13 Pages) Siemens Semiconductor Group – Low-Drop Voltage Regulator

TLE 4274
Circuit Description
The control amplifier compares a reference voltage to a voltage that is proportional to the
output voltage and drives the base of the series transistor via a buffer. Saturation control
as a function of the load current prevents any oversaturation of the power element. The
IC also incorporates a number of internal circuits for protection against:
• Overload
• Overtemperature
• Reverse polarity
Pin Configuration (top view)
P-TO220-3-1
P-TO252-3-1
P-TO263-3-1
GND
Ι
Q
AEP02512
Ι GND Q
AEP02281
Figure 1
Ι GND Q
AEP01957
Pin Definitions and Functions
Pin No. Symbol Function
1
I
Input; block to ground directly at the IC with a ceramic
capacitor.
2
GND
Ground
3
Q
Output; block to ground with a ≥ 22 µF capacitor.
Semiconductor Group
2
1998-11-01