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IFX20001MBV50 Datasheet(PDF) 9 Page - Infineon Technologies AG |
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IFX20001MBV50 Datasheet(HTML) 9 Page - Infineon Technologies AG |
9 / 12 page IFX20001 Application Information Data Sheet 9 Rev. 1.1, 2013-01-08 6 Application Information Note: The following information is given as a hint for the implementation of the device only and shall not be regarded as a description or warranty of a certain functionality, condition or quality of the device. Figure 3 Application Diagram Application Information The output voltage of the IFX20001 is divided and compared to an internal reference of 2.5 V typical. A regulation loop controls the output to achieve a stabilized output voltage. Figure 3 shows a typical application circuit. In order to maintain the stability of the control loop the IFX20001 output requires an output capacitor CQ of at least 3.3 μF with a minimum required ESR of 2.5 Ω and a maximum allowed ESR of 6 Ω for the IFX20001MBV33 and 8 Ω for the IFX20001MBV50. It is recommended to use for C Q a suitable tantalum capacitor or a multilayer ceramic capacitor with a sufficiently dimensioned series resistor in order to cover the required ESR range over the full operating temperature range from -40 °C to 125 °C.1) At the input of the regulator a capacitor is required for compensating line influences. A resistor of approximately 1 Ω in series with the input capacitor (C I) can dampen oscillations that could occur due to the input line inductance and the input capacitor. 1) For usage of ceramic capacitors without applying an additional series resistor at the output please refer to the IFX20002 which is a corresponding voltage regulator series specially designed for the usage of low-ESR output capacitors (< 2 Ω) . CQ CI I GND Q INH IFX20001 V I 4.7µF 100nF Inhibit V Q R Q 3.3 Ω |
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