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PL79L12XA3 Datasheet(HTML) 1 Page - Cystech Electonics Corp.

Part No. PL79L12XA3
Description  Three Terminal Low Current Negative Voltage Regulators
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Maker  CYSTEKEC [Cystech Electonics Corp.]
Homepage  http://www.cystekec.com
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PL79L12XA3 Datasheet(HTML) 1 Page - Cystech Electonics Corp.

   
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CYStech Electronics Corp.
Spec. No. : C531A3
Issued Date : 2003.04.08
Revised Date :
. .
Page No. : 1/3
PL79L12A3
CYStek Product Specification
Three Terminal Low Current Negative Voltage Regulators
PL79L12XA3
Description
The PL79L12XA3 is an inexpensive, easy-to-use device suitable for numerous
applications requiring up to 100mA. Like the higher powered PL7900E3 series
negative regulators, this device features thermal shutdown and current limiting,
making it remarkably rugged. In most applications, no external components are
required for operation.
The PL79L12A3 device is useful for on-card regulation or any other application where a regulated negative voltage
at a modest current level is needed. This regulator offers substantial advantage over the common resistor/zener diode
approach.
• No external components required
•Internal short circuit current limiting
•Internal thermal overload protection
•Low cost
•Complementary positive regulators offered(PL78L12A3)
•Available in either ±3% or ±5% selection.
Absolute Maximum Ratings (Ta=25°C)
• Input Voltage……………………………………………………………………………………………….-35V
• Total Power Dissipation……………………………………………………………………. Internally limited
• Operating Temperature Range……………………………………………………………. 0 °C to +125 °C
• Maximum Junction Temperature……………………………………………………………………..+150 °C
• Storage Temperature Range………………………………………………………………-55 °C to +150 °C
• Lead Temperature (Soldering 10S)……………………………….. ……………………………...260
°C
Gnd
R17
R16
Outpu
Q12
R15
Q13
R14
Q11
Q2
Q7
Q6
C
R10
R11
Q9
Q14
Q8
R9
R4
R7
Q4
Q5
R8
R6
Q10
R1
R18
R5
R2
Q1
D1
Z1
Input
R3
Representative Schematic Diagram
Typical Application
TO-92
PL79L12
Vout
Vin
C1
C2
Note:
C1 and C2 are required if regulator is
located far from power supply filter
and load, or oscillation may induced
on the loop.


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