NCP4683 datasheet(3/21 Pages) ONSEMI

Part #	NCP4683

Description	300 mA, Low Dropout Regulator

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NCP4683

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THERMAL CHARACTERISTICS

Rating

Symbol

Value

Unit

Thermal Characteristics, UDFN 1.0 x 1.0 mm

Thermal Resistance, Junction−to−Air

RqJA

250

°C/W

Thermal Characteristics, SOT23

Thermal Resistance, Junction−to−Air

RqJA

238

°C/W

Thermal Characteristics, SC−70

Thermal Resistance, Junction−to−Air

RqJA

263

°C/W

ELECTRICAL CHARACTERISTICS

−40°C ≤ TA ≤ 85°C; VIN = VOUT(NOM) + 1 V or 2.5 V, whichever is greater; IOUT = 1 mA, CIN = COUT = 1.0 mF, unless otherwise noted.

Typical values are at TA = +25°C.

Parameter

Test Conditions

Symbol

Min

Typ

Max

Unit

Operating Input Voltage

VIN

1.40

5.25

V

Output Voltage

TA = +25°C

VOUT ≥ 2.0 V

VOUT

x0.99

x1.01

V

VOUT < 2.0 V

−20

20

mV

−40°C ≤ TA ≤ 85°C

VOUT ≥ 2.0 V

x0.97

x1.03

V

VOUT < 2.0 V

−60

60

mV

Output Voltage Temp. Coefficient

−40°C ≤ TA ≤ 85°C

DVOUT/DTA

±80

ppm/°C

Line Regulation

VOUT(NOM) + 0.5 V ≤ VIN ≤ 5.0 V

LineReg

0.02

0.10

%/V

Load Regulation

IOUT = 1 mA to 300 mA

LoadReg

15

40

mV

Dropout Voltage

IOUT = 300 mA

VOUT = 0.8 V

VDO

0.56

0.72

V

VOUT = 0.9 V

0.51

0.65

1.0 V ≤ VOUT < 1.2 V

0.46

0.59

1.2 V ≤ VOUT < 1.4 V

0.39

0.50

1.4 V ≤ VOUT < 1.7 V

0.35

0.44

1.7 V ≤ VOUT < 2.1 V

0.30

0.39

2.1 V ≤ VOUT < 2.5 V

0.26

0.34

2.5 V ≤ VOUT < 3.0 V

0.25

0.30

3.0 V ≤ VOUT < 3.6 V

0.22

0.29

Output Current

IOUT

300

mA

Short Current Limit

VOUT = 0 V

ISC

60

mA

Quiescent Current

IQ

50

75

mA

Standby Current

VCE = 0 V, TA = 25°C

ISTB

0.1

1.0

mA

CE Pin Threshold Voltage

CE Input Voltage “H”

VCEH

1.0

V

CE Input Voltage “L”

VCEL

0.4

CE Pull Down Current

ICEPD

0.3

mA

Power Supply Rejection Ratio

VIN = VOUT + 1 V or VIN = 3 V,

DVIN = 0.2 Vpk−pk,

IOUT = 30 mA, f = 1 kHz

PSRR

65

dB

Output Noise Voltage

f = 10 Hz to 100 kHz, IOUT = 30 mA,

VOUT = 1.2 V, VIN = 3.2 V

VN

65

mVrms

Low Output Nch Tr. On Resistance

VIN = 4 V, VCE = 0 V, D version only

RLOW

50

W

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