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PL78M05XA3 Datasheet, PDF (1/4 Pages) Cystech Electonics Corp. – Three Terminal Medium Current Positive Voltage Regulators | |||
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CYStech Electronics Corp.
Three Terminal Medium Current Positive
Voltage Regulators
Spec. No. : C520A3
Issued Date : 2003.03.27
Revised Date : . .
Page No. : 1/4
TO-92
PL78M05XA3
Description
These regulators employ internal current-limiting and thermal-shutdown,
making them essentially indestructible. They can deliver up to 500mA
output current, if the case temperature can be kept at Tc=25°C.
They are intended as fixed voltage regulators in a wide range of applications including local (on-card)
regulation for elimination of noise and distribution problems associated with single-point regulation. In
addition, they can be used with power pass elements to make high-current voltage regulators. The
PL78M05XA3 used as a Zener diode/resistor combination replacement, offers an effective output
impedance improvement of typically two orders of magnitude, along with lower quiescent current and lower
noise.
Absolute Maximum Ratings (Ta=25°C)
⢠Input Voltageâ¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦. 35 V
⢠Total Power Dissipationâ¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦. Internally limited
⢠Operating Temperature Rangeâ¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦. 0 °C to +125 °C
⢠Maximum Junction Temperatureâ¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦125 °C
⢠Storage Temperature Rangeâ¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦-55 °C to +150 °C
⢠Lead Temperature (Soldering 10S)â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦.. â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦â¦...260 °C
Typical Application
Vin
Vout
PL78M05
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.
Schematic Diagram
576â¦
3.41kâ¦
3.89kâ¦
13kâ¦
7.8kâ¦
Vin
5k
5.7kâ¦
100
100
5p
1.5kâ¦
1.9kâ¦
Vout
2.23kâ¦
2.84kâ¦
Gnd
PL78M05A3
CYStek Product Specification
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