CYStech Electronics Corp.
Three Terminal Low Current Positive Voltage Regulators
Spec. No. : C518A3
Issued Date : 2003.03.26
Revised Date :
. .
Page No. : 1/4
TO-92
PL78L09XA3
Description
These regulators employ internal current-limiting and thermal-shutdown,
making them essentially indestructible. They can deliver up to 100mA
output current. if the case temperature can keep in Tc=25°C.
They are intended as fixed voltage regulators in a wide range of appli-
cations 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 PL78L09 used as a Zener diode/resistor com-
bination 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
PL78L09
Vout
5k
5.7kΩ
100
1.5kΩ
1.9kΩ
5p
3.41kΩ
3.89kΩ
7.8kΩ
13kΩ
2.23kΩ
Vout
100
C1
C2
576Ω
Note:
C1 and C2 are required if regulator is
located far from power supply filter
and load, or oscillation may induced
on the loop.
2.84kΩ
Gnd
PL78L09A3
CYStek Product Specification
CYStech Electronics Corp.
Ordering Information
Device
PL78L09AA3
PL78L09BA3
Output Voltage Tolerance
3%
5%
Spec. No. : C518A3
Issued Date : 2003.03.26
Revised Date :
. .
Page No. : 2/4
Electrical Characteristics
Vin=15V, 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
11.5V≤Vin≤24V
Tj=25°C, 11.5V≤Vin≤24V
Tj=25°C, 13V≤Vin≤24V
Tj=25°C, 1mA≤Io≤40mA
Tj=25°C, 1mA≤Io≤100mA
Tj=25°C
1mA≤Io≤40mA
11.5V≤Vin≤24V
Ta=25°C, 10Hz≤f≤10KHz
15V≤Vin≤25V, f=120Hz
Tj=25°C
Tj=25°C
Conditions
Tj=25°C
1mA≤Io≤70mA
1mA≤Io≤40mA and
11.5V≤Vin≤24V
Tj=25°C, 11.5V≤Vin≤24V
Tj=25°C, 13V≤Vin≤24V
Tj=25°C, 1mA≤Io≤40mA
Tj=25°C, 1mA≤Io≤100mA
Tj=25°C
1mA≤Io≤40mA
11.5V≤Vin≤24V
Ta=25°C, 10Hz≤f≤10KHz
15V≤Vin≤25V, f=120Hz
Tj=25°C
Tj=25°C
PL78L09A
Min
Typ
Max
8.73
9
9.27
8.55
-
9.45
8.55
-
-
-
-
-
-
-
-
38
-
-
-
-
-
-
-
-
-
-
70
44
140
1.7
9.45
200
150
45
90
5.5
0.1
1.5
-
-
-
-
mV
mV
mA
mA
uV
dB
mA
V
Units
Units
Vo
Output Voltage
V
∆Vo
∆Vo
IQ
Line Regulation
Load Regulation
Quiescent Current
Quiescent Current
∆IQ
Change
Vn
Output Noise Voltage
∆Vin
/
∆Vout
Ripple Rejection
Peak Output /
Isc
Short Circuit Current
VD
Dropout Voltage
Symbol
Parameter
Vo
Output Voltage
PL78L09B
Min
Typ
Max
8.55
9
9.45
8.5
-
9.5
8.5
-
-
-
-
-
-
-
-
38
-
-
-
-
-
-
-
-
-
-
70
44
140
1.7
9.5
200
150
45
90
5.5
0.1
1.5
-
-
-
-
V
∆Vo
∆Vo
IQ
Line Regulation
Load Regulation
mV
mV
mA
mA
uV
dB
mA
V
Quiescent Current
Quiescent Current
∆IQ
Change
Vn
Output Noise Voltage
∆Vin
/
∆Vout
Ripple Rejection
Peak Output /
Isc
Short Circuit Current
VD
Dropout Voltage
PL78L09A3
CYStek Product Specification
CYStech Electronics Corp.
Characteristic Curves
Dropout Characteristics
Spec. No. : C518A3
Issued Date : 2003.03.26
Revised Date :
. .
Page No. : 3/4
Maximum Average Power Dissipation
6
5
4
3
2
Io=100mA
10000
Output
Voltage(V)
Io=1mA
Io=40mA
Power Dissipation (mW)
1000
1
0
1
2
3
4
5
6
7
8
9 10
100
25
50
75
100
125
150
Input Voltage
(V)
Quiescent Current
4
3.5
Quiescent Current(mA)
Quiescent Current(mA)
3
2.5
2
1.5
1
0.5
0
0
5
10
15
20
25
Input Voltage(V)
30
35
2.6
0
3.2
3.4
Ambient Temperature (
°
C)
Quiescent Current
3
2.8
50
100
Ambient Temperature(
°
C)
150
PL78L09A3
CYStek Product Specification
CYStech Electronics Corp.
TO-92 Dimension
α
2
Spec. No. : C518A3
Issued Date : 2003.03.26
Revised Date :
. .
Page No. : 4/4
A
B
1
2
3
α
3
78L09
C
D
H
I
E
F
G
α
1
Style: Pin 1.Vout 2.GND 3.Vin
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.
PL78L09A3
CYStek Product Specification
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