AN1431T

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 characteristics, it can be replaced with Zener diode and has the wide application range. AN1431T 5.0±0.2 5.1±0.2 4.0±0.2 Unit : mm 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 0.45 – 0.1 2.54 2.3±0.2 2 3 1 JEDEC : TO-92 (SSIP003-P-0000) s Pin Name 〈AN1431T〉 Pin No. 1 2 3 Cathode Reference pin Anode Pin name AN1431M 5.0±0.2 5.1±0.2 4.0±0.2 13.5±0.5 +0.2 Unit : mm 〈AN1431M〉 Pin No. 1 2 3 Anode Cathode 2 3 1 Pin name Reference pin 2.54 0.45 – 0.1 2.3±0.2 +0.2 s Block Diagram JEDEC : TO-92 (SSIP003-P-0000) Current Source Output Tr + Error Amp. – Voltage Reference VKA = VREF (1 + R2 = 2.5kΩ R1 R2 ) + IREF · R1 1 3 IK 3 2 1 2 IREF VKA VREF V1 R1 R2 Pin number in Pin number in is for the AN1431T. is for the AN1431M. 13.5±0.5 s Absolute Maximum Ratings (Ta=25˚C) Parameter Supply voltage Supply current Power dissipation Reference input current Operating ambient temperature Storage temperature AN1431T AN1431M AN1431T AN1431M Symbol VCC ICC PD IREF Vopr Tstg Rating 37 –100 ...