78L12
SOT-89 Plastic-Encapsulate
Voltage Regulators
78L12
Three-terminal positive voltage regulator
SOT-89-3L
FEATURES
Maximum
output
current
I
OM
: 0.1A
Output voltage
V
O
:
12V
Continuous total dissipation
P
D
: 0.6 W (T
a
= 25
℃
)
1. OUT
2. GND
3. IN
ABSOLUTE MAXIMUM RATINGS (Operating temperature range applies unless otherwise specified)
Parameter
Input Voltage
Thermal
Resistance from Junction to Ambient
Operating Junction Temperature Range
Storage Temperature Range
Symbol
V
i
R
θJA
T
OPR
T
STG
Value
30
166.7
-40~+125
-65
~+150
Unit
V
℃/W
℃
℃
ELECTRICAL CHARACTERISTICS AT SPECIFIED VIRTUAL JUNCTION TEMPERATURE (Vi=19V,Io=40mA,Ci=0.33uF,,Co=0.1uF, unless otherwise specified )
Parameter
Symbol
Test conditions
25℃
Min
11.5
11.4
11.4
Typ
12
12
12
22
13
55
49
4.3
Max
12.5
12.6
12.6
100
50
250
200
6.5
1.5
0.1
Unit
V
V
V
mV
mV
mV
mV
mA
mA
mA
μV/Vo
dB
V
Output voltage
Vo
14V≤V
l
≤27V,
Io=1mA-40mA
Io=1mA-70mA
Io=1mA-100mA
Io=1mA-40mA
14.5V≤V
l
≤27V
16V≤V
l
≤27V
16V≤V
l
≤27V
1mA≤I
O
≤40mA
10Hz≤f≤100KHz
15V≤V
l
≤25V,f=120Hz
0-125℃
25℃
25℃
25℃
25℃
25℃
0-125℃
0-125℃
25℃
0-125℃
25℃
Load Regulation
Line regulation
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Ripple Rejection
Dropout Voltage
*
Pulse test.
TYPICAL APPLICATION
△Vo
△Vo
Iq
△Iq
△Iq
V
N
RR
Vd
70
37
42
1.7
Vi
3
78L12
2
1
Vo
Ci
0.33μF
C0
0.1μF
Note: Bypass capacitors are recommended for optimum stability and transient response and should be located as close as
DN:T19A17A0
The above data are for reference only.
Rev:2019A0
Page :1
http://www.microdiode.com
78L12
Typical Characteristics
Output Characteristics
16
14
Dropout Characteristics
I
O
=0mA
T
J
=25
℃
12
14
T
J
=25
℃
(V)
V
O
(V)
OUTPUT VOLTAGE V
O
12
OUTPUT VOLTAGE
8
O
I
=0
m
10
A
10
6
8
I
O
=40,70,100mA
4
6
2
0
0
5
10
15
20
25
30
35
4
8
9
10
11
12
13
14
15
INPUT VOLTAGE
V
IN
(V)
INPUT VOLTAGE
V
IN
(V)
Quiescent Current
5
18
Current Cut-off Grid Voltage
I
O
=0mA
T
J
=25
℃
V
IN
=19V
15
T
J
=25
℃
Pulsed
(mA)
4
I
Q
(V)
3
QUIESCENT CURRENT
OUTPUT VOLTAGE
0
5
10
15
20
25
30
V
O
12
9
2
6
1
3
0
0
0
40
80
120
160
200
240
INPUT VOLTAGE
V
IN
(V)
OUTPUT CURRENT
I
O
(mA)
Output Voltage vs Junction Temperature
14
800
Power Derating Curve
V
in
=19V
I
O
=5mA
700
(V)
13
(mW)
P
D
POWER DISSIPATION
0
25
50
75
100
125
600
OUTPUT VOLTAGE V
O
500
12
400
300
11
200
100
10
-25
0
-25
0
25
50
75
100
125
JUNCTION TEMPERATURE
T
J
(
℃
)
JUNCTION TEMPERATURE
T
J
(
℃
)
http://www.microdiode.com
Rev:2019A0
Page :2
78L12
Outlitne Drawing
SOT-89-3L
Package Outline Dimensions
Symbol
A
b
b1
c
D
D1
E
E1
e
e1
L
Dimensions In Millimeters
Max
Min
1.400
1.600
0.320
0.520
0.400
0.580
0.350
0.440
4.400
4.600
1.550 REF.
2.300
2.600
3.940
4.250
1.500 TYP.
3.000 TYP.
0.900
1.200
Dimensions In Inches
Min
Max
0.055
0.063
0.013
0.020
0.016
0.023
0.014
0.017
0.173
0.181
0.061 REF.
0.091
0.102
0.155
0.167
0.060 TYP.
0.118 TYP.
0.035
0.047
SOT-89-3L
Suggested
Pad Layout
Note:
1.Controlling dimension:in/millimeters.
2.General tolerance: ±0.05mm.
3.The pad layout is for reference purposes only.
PACKAGE SPECIFICATIONS
Package Reel Size
Reel DIA.
(mm)
Q'TY/Reel
(pcs)
Box Size
(mm)
QTY/Box
(pcs)
Carton Size
(mm)
G.W.(Kg)
180000
SOT-89-3L
7'
330
1000
203×203×195
40000
438×438×220
Important Notice and Disclaimer
Microdiode Electronics (Jiangsu) reserves the right to make changes to this document and its
products and specifications at any time without notice. Customers should obtain and confirm the
latest product information and specifications before final design,purchase or use.
Microdiode Electronics (Jiangsu) makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, not does Microdiode Electronics
(Jiangsu) assume any liability for application assistance or customer product design. Microdiode
Electronics (Jiangsu) does not warrant or accept any liability with products which are purchased
or used for any unintended or unauthorized application.
No license is granted by implication or otherwise under any intellectual property rights of
Microdiode Electronics (Jiangsu).
Microdiode Electronics (Jiangsu) products are not authorized for use as critical components
in life support devices or systems without express written approval of Microdiode Electronics
(Jiangsu).
http://www.microdiode.com
Rev:2019A0
Page :3
电子工程世界
电源技术
