PL7918XE3 Datasheet, PDF (1/4 Pages) Cystech Electonics Corp. – 3-TERMINAL NEGATIVE VOLTAGE REGULATOR

Spec. No. : C538E3
CYStech Electronics Corp. Issued Date : 2003.04.08
Revised Date :
Page No. : 1/4
3-TERMINAL NEGATIVE VOLTAGE REGULATOR
PL7918XE3
Description
The PL7918XE3 series of three-terminal negative regulators are
available in the TO-220AB package. These regulators can provide
local on-card regulation, eliminating the distribution problems
TO-220AB
associated with single point regulation. Each employs internal current
limiting, thermal shutdown and safe operating area protection, making it essentially indestructible.
If adequate heat sinking is provided, they can deliver over 1A output current. Although designed
primarily as fixed voltage regulators, these devices can be used with external components to
obtain adjustable voltages and currents.
PL7918XE3 is characterized for operation from 0°C to +125°C, and if operating temperature is
always high, please refer to the power dissipation curve.
Absolute Maximum Ratings (Ta=25°C)
• Input Voltage ...................................................................................................................... -35 V
• Total Power Dissipation .................................................................................... Internally limited
• Operating Junction Temperature ....................................................................... 0 °C to +125 °C
• Maximum Junction Temperature ..................................................................................... 125 °C
• Storage Temperature Range .......................................................................... -55 °C to +150 °C
• Lead Temperature (Soldering 10S) ................................................................................. 230 °C
Typical Application
Schematic Diagram
Vin
2
C1
PL7918
1
Vout
3
C2
Note:
Bypass Capacitors are
recommended for optimum stability
and transient response and should
Vin
be located as close as possible to
the regulator.
1.4k
7K
15K
750
1K
6K
20K
20pF
20K
20K
GND
4K
5K
Vout
3K
10K
6.2V
10pF
600 15K
20K
5K
150
0.2
PL7918E3
CYStek Product Specification