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LDO (Low Dropout Regulator)
1.Q:Why is my LDO not regulating properly?
A:Many reasons possible: current limit has been activated, thermal shutdown has been exceeded, dropout voltage spec not obeyed,
ESR of caps rules not obeyed, etc.2.Q:How may I obtain the reference voltage out of an adjustable LDO?
A:Hook the ADJ pin directly to Vout.
3.Q:What is the accuracy of my LDO?
A:The accuracy of the LDO is the VREF (ADJ) voltage accuracy. It is typically 1% at certain conditions. If a resistor divider is used for an
ADJ device, the total accuracy will be affected by the external resistance tolerance.