AN1431T Datasheet, PDF (1/4 Pages) Panasonic Semiconductor – Surface-mount Adjustable Output Shunt Regulator

AN1431T, AN1431M
Surface-mount Adjustable Output Shunt Regulator
s Overview
The AN1431T and AN1431M are high accuracy stabilized
power supplies in which the output voltage can be adjusted in
the range from approx. 2.5 to 36V by using the external resistor
under the operating temperature. Because of its fast rise charac-
teristics, it can be replaced with Zener diode and has the wide
application range.
s Features
• High precision reference voltage : 2.5V±2%
• High-temperature stability : 17ppm/˚C typ.
• Output voltage externally adjustable : 2.5 to 36V
• Fast rise
• Low input impedance : 0.2Ω (typ.)
• Low output noise voltage
s Pin Name
〈AN1431T〉
Pin No.
Pin name
1 Cathode
2 Reference pin
3 Anode
〈AN1431M〉
Pin No.
Pin name
1 Reference pin
2 Anode
3 Cathode
s Block Diagram
AN1431T
5.0±0.2
4.0±0.2
Unit : mm
2.54
+ 0.2
0.45 – 0.1
2.3±0.2
2 31
JEDEC : TO-92 (SSIP003-P-0000)
AN1431M
5.0±0.2
Unit : mm
4.0±0.2
2.54
+ 0.2
0.45 – 0.1
2.3±0.2
2 31
JEDEC : TO-92 (SSIP003-P-0000)
Current
Source
Output Tr
Error
Amp.
Voltage
Reference
VKA = VREF
(1 +
R1
R2
)
+
IREF
·
R1
R2 = 2.5kΩ
3 ^{1 I}K 2 ³
2
1
IREF
V1
VKA
R1
R2
VREF
Pin number in is for the AN1431T.
Pin number in is for the AN1431M.