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PDF APL1431L Data sheet ( Hoja de datos )
| Número de pieza | APL1431L | |
| Descripción | Low Voltage Adjustable Precision Shunt Regulator | |
| Fabricantes | Anpec Electronics Coropration | |
| Logotipo |  |
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APL1431L
Low Voltage Adjustable Precision Shunt Regulator
Features
General Description
• Precise Reference Voltage to 1.24V
• Guaranteed 0.5% or 1% Reference Voltage
Tolerance
•www.DataSheet4U.com Sink Current Capability , 60mA to 100mA
• Quick Turn-on
• Adjustable Output Voltage , VO = VREF to 20V
• Low Operational Cathode Current , 60mA
Typical
• 0.1Ω Typical Output Impedance
• SOT-23-5 Packages
Applications
• Linear Regulators
• Adjustable Power Supply
• Switching Power Supply
The APL1431L is a 3-terminal low voltage adjust-
able precision reference with specified thermal sta-
bility over applicable commercial temperature ranges
. Output voltage may be set to any value between
V (1.24 V) and 20 V with two external resistors
REF
(see Figure 2) . When used with an photocoupler ,
the APL1431L is an ideal voltage reference in iso-
lated feedback circuits for 1.24V to 12V switching-
mode power supplies . This device has a typical
output impedance of 0.1Ω . Active output circuitry
provides a very sharp turn-on characteristic , mak-
ing the APL1431L excellent replacements for zener
diodes in many applications , including on-board
regulation and adjustable power supplies .
ANODE REF
54
12 3
Symbol
REF
NC NC CATHODE
Functional Diagram
Anode
Cathode
C a th od e
REF
+
−
VREF
Anode
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise
customers to obtain the latest version of relevant information to verify before placing orders.
Copyright ANPEC Electronics Corp.
Rev. A.4 - May., 2003
1
www.anpec.com.tw
1 page  
APL1431L
Typical Characteristics
www.DataSheet4U.com
300
TA=25°C
2 0 0 VKA=VREF
100
0
-100
-200
-300
-1
-0.5 0 0.5 1
Cathode Voltage (V)
1.5
150
TA=25°C
100
VKA=VREF
50
0
-50
-100
-150
-1.5 -1 -0.5 0 0.5 1 1.5
Cathode Voltage (V)
1.248
1.246
IK=10mA
1.244
1.242
1.24
1.238
1.236
1.234
-40 -20
0
20 40 60 80 100
Junction Temperature (°C)
150
IK=10mA
R1=10kΩ
125 R2=∞
100
75
50
-40 -20 0 20 40 60 80 100
Junction Temperature (°C)
Copyright ANPEC Electronics Corp.
Rev. A.4 - May., 2003
5
www.anpec.com.tw
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet APL1431L.PDF ] | |
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