NCP9001 datasheet(4/12 Pages) ONSEMI

Teilenummer	NCP9001

Bauteilbeschribung	1.5 MHz, 600 mA, High?묮fficiency, Low Quiescent Current, Adjustable Output Voltage Step?묭own Converter

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NCP9001

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ELECTRICAL CHARACTERISTICS (Typical values are referenced to TA = +25°C, Min and Max values are referenced −40°C to

+85°C ambient temperature, unless otherwise noted, operating conditions VIN = 3.6 V, VOUT = 1.8 V, unless otherwise noted.)

Characteristic

Symbol

Min

Typ

Max

Unit

Input Voltage Range

VIN

2.7

−

5.5

V

Undervoltage Lockout (VIN Falling)

VUVLO

2.3

2.5

2.6

V

Quiescent Current

PFM No Load

Iq

−

30

45

mA

Standby Current, EN Low

Istb

−

0.3

1.2

mA

Oscillator Frequency

Fosc

1.3

1.5

1.8

MHz

Peak Inductor Current

ILIM

−

1200

−

mA

Feedback Reference Voltage

Vref

−

0.6

−

V

FB Pin Tolerance Overtemp @ Iout = 100 mA

VFBtol

−3.0

−

3.0

%

Reference Voltage Line Regulation

DVFB

−

0.1

−

%

Output Voltage Accuracy @ Iout = 100 mA (Note 5)

VOUT

−3%

Vnom

+3%

V

Minimum Output Voltage

VOUT

−

0.9

−

V

Maximum Output Voltage

VOUT

−

3.3

−

V

Output Voltage Line Regulation (Vin = 2.7–5.5)

Io = 100 mA

DVOUT

−

0.1

−

%

Voltage Load Regulation

(IO = 100 mA to 300 mA)

(IO = 100 mA to 600 mA)

VLOADREG

−

0.0005

0.001

−

%/mA

Load Transient Response (300 mA to 600 mA Load Step, Trise 10 ms)

VOUT

−

50

−

mV

Duty Cycle

−

100

%

P−Ch On−Resistance

RLxH

−

300

−

mW

N−Ch On−Resistance

RLxL

−

300

−

mW

P−Ch Leakage Current

ILeakH

−

0.05

−

mA

N−Ch Leakage Current

ILeakL

−

0.01

−

mA

Enable Pin High

VENH

1.2

−

V

Enable Pin Low

VENL

−

0.4

V

EN << H >> Input Current, EN = 3.6 V

IENH

−

2.0

−

mA

Soft−Start Time

Tstart

−

350

500

ms

Thermal Shutdown Threshold

TSD

−

160

−

°C

Thermal Shutdown Hysteresis

TSDH

−

25

−

°C

5. The overall output voltage tolerance depends upon the accuracy of the external resistor (R1, R2).

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