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    PWM filter... does it matter which cap?

    Hi, I want to change a PWM into a smooth analog signal. I have the circuit, but I was wondering if it mattered what capacitor I would be using. I want to use a ceramic cap... does it matter? The PWM is a 100 KHz square wave.
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    LDO Loop Compensation (question)

    Hi, I'm reading the following pdf: http://www.national.com/an/AN/AN-1482.pdf Can someone explain what a pole is? "The capacitor connected to the ouput formsa pole with the load resistor whose frequency is given by" and so on... What is a Load Pole. I'm a layman, so please "dim it down a...
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    Voltage Regulator Question

    Hi, In the data sheet for a chip (qt301 from qprox.com) I am using it says the following: "If the power supply is shared with another electronic system, make sure the supply is free of spikes, sags, and surges. The supply is best locally regulated using a conventional 78L05 type regulator, or...
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