[AP1150ADSXX]

014011331-E-00

- 16 -

2014/10

12. Definition of term

・

Output Voltage (Vout)

・Maximum Output Current (Iout

The rated output current is specified under the condition where the output voltage drops 0.3V the value specified

with Iout=5mA. The input voltage is set to Vout(typ)+1V and the current is pulsed to minimize temperature effect.

・Dropout Voltage (Vdrop)

The dropout voltage is the difference between the input voltage and the output voltage at which point the regulator

starts to fall out of regulation. Below this value, the output voltage will fall as the input voltage is reduced. It is

dependent upon the load current and the junction temperature.

・Line Regulation (LinReg)

Line regulation is the ability of the regulator to maintain a constant output voltage as the input voltage changes. The

pulse measurement to minimize temperature effect.

・Load Regulation (LoaReg)

Load regulation is the ability of the regulator to maintain a constant output voltage as the load current changes. It is

regulation is specified output current step conditions of

5mA to 100mA.

・Ripple Rejection (R.R)

Ripple rejection is the ability of the regulator to attenuate the ripple content of the input voltage at the output.

rejection is the ratio of the ripple content of the output vs. input and is expressed in dB.

・Standby Current (Istandby)

Standby current is the current, which flows into the regulator when the output is turned off by the control function

(Vcont=0V).

・

Over Current Sensor

The over current sensor protects the device when there is excessive output current. It also protects the device if the

output is accidentally connected to ground.

・Thermal Sensor

temperature rise can be caused by external heat, excessive power dissipation caused by large input to output voltage

drops, or excessive output current. The regulator will shut off when the temperature exceeds the safe value. As the

junction temperatures decrease, the regulator will begin to operate again. Under sustained fault conditions, the

regulator output will oscillate as the device turns off then resets. Damage may occur to the device under extreme

fault.

Please reduce the loss of the regulator when this protection operate, by reducing the input voltage or make better heat

rating of its power dissipation in a moment, there is a possibility that the IC is destroyed before internal thermal

protection works.

・Reverse Voltage Protection

Reverse voltage protection prevents damage due to the output voltage being higher than the input voltage. This fault

condition can occur when the output capacitor remains charged and the input is reduced to zero, or when an external

voltage higher than the input voltage is applied to the output side

Vout

GND