NCV47700_17 datasheet(8/12 Pages) ONSEMI

No de pièce	NCV47700

Description	5 V to 20 V Adjustable Low Dropout Regulator

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Fabricant	ONSEMI [ON Semiconductor]

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NCV47700

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8

DEFINITIONS

General

All measurements are performed using short pulse low duty

cycle techniques to maintain junction temperature as close

as possible to ambient temperature.

Output Voltage

The output voltage parameter is defined for specific

temperature, input voltage and output current values or

specified over Line, Load and Temperature ranges.

Line Regulation

The change in output voltage for a change in input voltage

measured for specific output current over operating ambient

temperature range.

Load Regulation

The change in output voltage for a change in output current

measured for specific input voltage over operating ambient

temperature range.

Dropout Voltage

The input to output differential at which the regulator output

no longer maintains regulation against further reductions in

input voltage. It is measured when the output voltage Vout

has dropped −2% from the nominal value obtained at Vin =

Vout_nom + 8.5 V. The junction temperature, load current,

and minimum input supply requirements affect the dropout

level.

Quiescent and Disable Currents

Quiescent Current (Iq) is the difference between the input

current (measured through the LDO input pin) and the

output load current. If Enable pin is set to LOW the regulator

reduces its internal bias and shuts off the output, this term is

called the disable current (IDIS).

Current Limit

Current Limit is value of output current by which output

voltage drops below 90% of its nominal value.

PSRR

Power Supply Rejection Ratio is defined as ratio of output

voltage and input voltage ripple. It is measured in decibels

(dB).

Line Transient Response

Typical output voltage overshoot and undershoot response

when the input voltage is excited with a given slope.

Load Transient Response

Typical output voltage overshoot and undershoot response

when the output current is excited with a given slope

between low−load and high−load conditions.

Thermal Protection

Internal thermal shutdown circuitry is provided to protect

the integrated circuit in the event that the maximum junction

temperature is exceeded. When activated at typically 175

°C,

the regulator turns off. This feature is provided to prevent

failures from accidental overheating.

Maximum Package Power Dissipation

The power dissipation level is maximum allowed power

dissipation for particular package or power dissipation at

which the junction temperature reaches its maximum

operating value, whichever is lower.

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ON Semiconductor	NCV47700DAJR2G	174Kb / 12P	5 V to 20 V Adjustable Low Dropout Regulator with Adjustable Current Limit November, 2012 ??Rev. 2
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Fabricant	No de pièce	Fiches technique	Description
ON Semiconductor	NCV47701	129Kb / 12P	5 V to 20 V Adjustable Low Dropout Regulator July, 2017 ??Rev. 3
	NCV47700	174Kb / 12P	5 V to 20 V Adjustable Low Dropout Regulator with Adjustable Current Limit November, 2012 ??Rev. 2
	NCV47701	174Kb / 12P	5 V to 20 V Adjustable Low Dropout Regulator with Adjustable Current Limit November, 2012 ??Rev. 2
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NCV47700 Fiches technique(PDF) 8 Page - ON Semiconductor

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