CYStech Electronics Corp.
Three Terminal Low Current Negative Voltage Regulators
Spec. No. : C531A3
Issued Date : 2003.04.08
Revised Date :
. .
Page No. : 1/3
TO-92
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
Typical Application
Representative Schematic Diagram
Gnd
Vin
PL79L12
Vout
R5
R18
R1
D1
R6
R8
Q10
Q5
Q4
R7
Q8
Q14
Q9
R4
R16
R9
R17
C1
C2
Q1
Outpu
Q12
R2
Z1
C
R3
Q6
R10
R11
Q7
R15
Q2
Q11
R14
Q13
Note:
C1 and C2 are required if regulator is
located far from power supply filter
and load, or oscillation may induced
on the loop.
PL79L12A3
Input
CYStek Product Specification
CYStech Electronics Corp.
Ordering Information
Device
PL79L12AA3
PL79L12BA3
Output Voltage Tolerance
3%
5%
Spec. No. : C531A3
Issued Date : 2003.04.08
Revised Date :
. .
Page No. : 2/3
Electrical Characteristics
Vin=-19V, Iout=40mA, 0°C≤Tj≤125°C, Cin=0.33uF, Cout=0.1uF (unless otherwise noted)
Symbol
Parameter
Conditions
Tj=25°C
1mA≤Io≤70mA
1mA≤Io≤40mA and
-14.5V≥Vin≥-27V
Tj=25°C, -14.5V≥Vin≥-27V
Tj=25°C, -16V≥Vin≥-27V
Tj=25°C, 1mA≤Io≤100mA
Tj=25°C, 1mA≤Io≤40mA
Tj=25°C
Tj=125°C
1mA≤Io≤40mA
-16V≥Vin≥-27V
Ta=25°C, 10Hz≤f≤100KHz
-15V≥Vin≥-25V, f=120Hz
Tj=25°C,Iout=40mA
Conditions
Tj=25°C
1mA≤Io≤70mA
1mA≤Io≤40mA and
-14.5V≥Vin≥-27V
Tj=25°C, -14.5V≥Vin≥-27V
Tj=25°C, -16V≥Vin≥-27V
Tj=25°C, 1mA≤Io≤100mA
Tj=25°C, 1mA≤Io≤40mA
Tj=25°C
Tj=125°C
1mA≤Io≤40mA
-16V≥Vin≥-27V
Ta=25°C, 10Hz≤f≤100KHz
-15V≥Vin≥-25V, f=120Hz
Tj=25°C,Iout=40mA
PL79L12A
Units
Min
Typ
Max
-11.64 -12.00 -12.36
-11.6
-
-12.4
V
-11.6
-
-12.4
-
-
-
-
-
-
-
-
-
37
-
-
-
-
-
-
-
-
-
80
42
1.7
250
200
100
50
6.5
6.0
0.2
1.5
-
-
-
mV
mV
mA
mA
µV
dB
V
Vo
Output Voltage
∆Vo
∆Vo
IQ
∆IQ
Line Regulation
Load Regulation
Quiescent Current
Quiescent Current
Change
Vn
Output Noise Voltage
∆Vin
/
∆Vout
Ripple Rejection
VD
Dropout Voltage
Symbol
Parameter
Vo
Output Voltage
PL79L05B
Units
Min
Typ
Max
-11.52 -12.00 -12.48
-11.4
-
-12.6
V
-11.4
-
-12.6
-
-
-
-
-
-
-
-
-
37
-
-
-
-
-
-
-
-
-
80
42
1.7
250
200
100
50
6.5
6.0
0.2
1.5
-
-
-
mV
mV
mA
mA
µV
dB
V
∆Vo
∆Vo
IQ
∆IQ
Line Regulation
Load Regulation
Quiescent Current
Quiescent Current
Change
Vn
Output Noise Voltage
∆Vin
/
∆Vout
Ripple Rejection
VD
Dropout Voltage
PL79L12A3
CYStek Product Specification
CYStech Electronics Corp.
TO-92 Dimension
α
2
Spec. No. : C531A3
Issued Date : 2003.04.08
Revised Date :
. .
Page No. : 3/3
A
B
1
2
3
α
3
79L12
C
D
H
I
E
F
G
α
1
Style: Pin 1.GND 2.Vin 3.Vout
3-Lead TO-92 Plastic Package
CYStek Package Code: A3
*: Typical
DIM
A
B
C
D
E
F
Inches
Min.
Max.
0.1704 0.1902
0.1704 0.1902
0.5000
-
0.0142 0.0220
-
*
0.0500
0.1323 0.1480
Millimeters
Min.
Max.
4.33
4.83
4.33
4.83
12.70
-
0.36
0.56
-
*
1.27
3.36
3.76
DIM
G
H
I
α1
α2
α3
Inches
Min.
Max.
0.0142 0.0220
-
*
0.1000
-
*
0.0500
-
*
5°
-
*
2°
-
*
2°
Millimeters
Min.
Max.
0.36
0.56
-
*
2.54
-
*
1.27
-
*
5°
-
*
2°
-
*
2°
Notes:
1.Controlling dimension: millimeters.
2.Maximum lead thickness includes lead finish thickness, and minimum lead thickness is the minimum thickness of base material.
3.If there is any question with packing specification or packing method, please contact your local CYStek sales office.
Material:
•
Lead: 42 Alloy ; solder plating
•
Mold Compound: Epoxy resin family, flammability solid burning class: UL94V-0
Important Notice:
•
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written approval of CYStek.
•
CYStek reserves the right to make changes to its products without notice.
•
CYStek
semiconductor products are not warranted to be suitable for use in Life-Support Applications, or systems.
•
CYStek assumes no liability for any consequence of customer product design, infringement of patents, or application assistance.
PL79L12A3
CYStek Product Specification
嵌入式系统
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
