FAQ：LDO Linear Regulators
FAQ：LDO Linear Regulators
- In the application circuit example on the NJM2387A datasheet, the input/output capacitor types are electrolytic capacitors, but can ceramic capacitors be used?
- There is a picture of a diode in the block diagram of R1191, but is the diode actually inserted?
- What is the function of the OVP protection circuit (Over Voltage Protection: OVP) of NJM2386?
- What is the difference between DC/DC converters and LDO regulators?
- How can I calculate the power dissipation of an LDO regulator?
- What is the supply current of an LDO regulator? What are the merits and demerits of using an LDO regulator with low supply current?
- What is the difference between LDO's shutdown current(1) and quiescent current(2)? How much voltage does an LDO regulator output at its shutdown mode?
- What are the characteristics of a negative voltage LDO regulator? Where is it used?
- What is a voltage tracker? How is it used?
- What is the alternative product for RE5RA series?
- How should I calculate an efficiency of a regulator?
- Could I get IBIS model for an analog IC( op amp or regulator )?
- Can I apply to an input voltage what exceeds a dropout voltage in absolute maximum ratings to NJM317 at a typical application?
- I want to measure NJM7805 phase margin on a PCB. What should I do it?
- Do NJM7800 and NJM7900 series guarantee a dropout voltage in a data sheet?
- What is the function of the ASO protection circuit (Area of Safety Operation: ASO) of the three-terminal regulator?
- How should external components be located on a PCB?
- Are LDO regulators damaged by inrush current over their absolute maximum ratings?
- What is a fold-back protection circuit for LDO regulators?
- What must be taken into account to lay out PCB?
- What is an ECO function?
- At what point is a source voltage applied to a CE pin?
- What must be taken into account to construct a phase compensation circuit?
- What does externally adjustable output voltage mean?
- What will happen if the CE is at high impedance?
- What is an auto-discharge function?
- What is an inrush current preventing circuit?
- What is a reverse current protection circuit?
- What is a thermal shutdown circuit?
- How can I calculate the dropout voltage of an LDO regulator?
- What will happen if the output voltage becomes higher than the input voltage? How can I take measures against the state?
- What must be taken into account if CE pin is tied to VDD pin? Is it necessary to pull up CE pin to VDD pin by a resistor?
- How can I figure out the efficiency of an LDO regulator?
- Do Ψjt, θja, and power dissipation vary by the size of the board? How can I predict the power dissipation, the Ψjt, and the θja of the board we have designed?