KA431S Fairchild Semiconductor, KA431S Datasheet
KA431S
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KA431S Summary of contents
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... Fast Turn-on Response Internal Block Diagram REFERENCE REFERENCE (R) ©2011 Fairchild Semiconductor Corporation Description The KA431S/KA431SA/KA431SL are three-terminal Ω Typical adjustable regulator series with a guaranteed thermal stability over applicable temperature ranges. The output voltage may be set to any value between V (approximately 2.5 volts) and 36 volts with two external resistors These devices have a typical dynamic output impedance of 0 ...
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... KA431S/KA431SA/KA431SL Absolute Maximum Ratings (Operating temperature range applies unless otherwise specified.) Parameter Cathode Voltage Cathode Current Range (Continuous) Reference Input Current Range Thermal Resistance Junction-Air (Note1,2) MF Suffix Package Power Dissipation (Note3,4) MF Suffix Package Junction Temperature Operating Temperature Range Storage Temperature Range Note : 1 ...
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... IKA=1 to 100mA f ≥1.0kHz • -25° +85°C MIN MAX KA431S Min. Typ. Max. Min. Typ. Max. Min. Typ. Max REF 2.450 2.500 2.550 2.470 2.495 2.520 2.482 2.495 2.508 - 4.5 17 ΔVKA=10 - -1.0 -2.7 V-VREF ΔVKA=36 - -0.5 -2.0 V-10V - 1.5 - 0.4 1.2 - 0.45 1.0 - 0.05 1.0 - 0.15 0.5 KA431S/KA431SA/KA431SL KA431SA KA431SL - 4 -1.0 -2 -0 0.4 1 0.45 1 0.05 1 0.15 0.5 - Unit V 4 -1.0 -2.7 mV/V -0.5 -2.0 μ ...
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... KA431S/KA431SA/KA431SL Test Circuits Figure 1. Test Circuit for V Figure 3. Test Circuit for l 4 KA431S =V KA REF KA431S KA(OFF) KA431S ≥V Figure 2. Test Circuit for V KA REF ...
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... Frequency (Hz) Figure 8. Small Signal Voltage Amplification vs. Frequency 100 125 10mA KA 1M 10M KA431S/KA431SA/KA431SL 800 REF 600 400 200 0 -200 - CATHODE VOLTAGE (V) KA Figure 5. Cathode Current vs. Cathode Voltage 3.5 3 ...
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... KA431S/KA431SA/KA431SL Typical Performance Characteristics 140 120 A 100 80 stable 100p 1n 10n C , LOAD CAPACITANCE L Figure 10. Stability Boundary Conditions 0.0 0.2 0.4 0.6 0.8 1.0 Ref.-Cathode Voltage(V) Figure 12. Reference-Cathode Diode Curve 6 (Continued Vref 5 stable 100n ...
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... KA431S Figure 16. Current Limit or Current Source R ⎛ ⎞ 1 ------ - ⎝ ⎠ O ref R 2 KA431S Figure 14 . Output Control for - Three-Termianl Fixed Regulator Figure 17. Constant-Current Sink KA431S/KA431SA/KA431SL R ⎛ ⎞ ------ - = + ⎝ ⎠ O ref R 2 KA431S Figure 15. High Current Shunt Regulator KA431S 7 ...
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... KA431S/KA431SA/KA431SL Mechanical Dimensions Package Marking 43A MF- 2% tolerance 43A 43D MF2- 2% tolerance 8 Dimensions in millimeters SOT-23F 43C 43B 1% tolerance 0.5% tolerance 43E 43C 43F 43B 1% tolerance 0.5% tolerance ...
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... Ordering Information Product Number Output Voltage Tolerance KA431SLMF KA431SAMF KA431SMF KA431SLMF2 KA431SAMF2 KA431SMF2 Package 0.5% SOT-23F 1% SOT-23F 2% SOT-23F 0.5% SOT-23F 1% SOT-23F 2% SOT-23F KA431S/KA431SA/KA431SL Operating Temperature -25 ~ +85°C 9 ...
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... KA431S/KA431SA/KA431SL DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. ...