CYStech Electronics Corp.
Three Terminal Medium Current Positive Voltage Regulators
Spec. No. : C520A3 Issued Date : 20...
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
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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 Voltage………………………………………………………………………………………………. 35 V Total Power Dissipation……………………………………………………………………. Internally limited Operating Temperature Range……………………………………………………………. 0 °C to +125 °C Maximum Junction Temperature………………………………………………………………………125 °C Storage Temperature Range………………………………………………………………-55 °C to +150 °C Lead Temperature (Soldering 10S)……………………………….. ……………………………...260 °C
Typical Application
Schematic Diagram
Vin
Vin PL78M05
Vout
5k 5.7kΩ
100
1.5kΩ 1.9kΩ Vout
C1
C2
576Ω 3.41kΩ 3.89kΩ 7.8k...