NCP705 datasheet(4/20 Pages) ONSEMI

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NCP705

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Table 4. ELECTRICAL CHARACTERISTICS

−40

°C ≤ TJ ≤ 125°C; VIN = VOUT(NOM) + 0.5 V or 2.5 V, whichever is greater; VEN = 0.9 V, IOUT = 10 mA, CIN = COUT = 1 mF unless

otherwise noted. Typical values are at TJ = +25°C. (Note 4)

Parameter

Test Conditions

Symbol

Min

Typ

Max

Unit

Operating Input Voltage

VIN

2.5

5.5

Output Voltage Range (Adjustable)

VOUT

0.8

5.5−

VDO

Undervoltage Lock−out

VIN rising

UVLO

1.2

1.6

1.9

Output Voltage Accuracy (Fixed)

VOUT + 0.5 V ≤ VIN ≤ 5.5 V, IOUT = 0 − 500 mA

VOUT

−2

Reference Voltage

VREF

0.8

Reference Voltage Accuracy

IOUT = 10 mA

VREF

−2

Line Regulation

VOUT + 0.5 V ≤ VIN ≤ 4.5 V, IOUT = 10 mA

VOUT + 0.5 V ≤ VIN ≤ 5.5 V, IOUT = 10 mA

RegLINE

550

750

mV/V

Load Regulation

IOUT = 0 mA to 500 mA

RegLOAD

mV/mA

Load Transient

IOUT = 1 mA to 500 mA or 500 mA to 1 mA in

ms, COUT = 1 mF

TranLOAD

±120

Dropout Voltage (Note 5)

IOUT = 500 mA, VOUT(nom) = 2.8 V

VDO

230

350

Output Current Limit

VOUT = 90% VOUT(nom)

NCP705

ICL

510

750

950

NCP705E

°C ≤ TJ ≤ 70°C)

600

750

950

Quiescent Current

IOUT = 0 mA

Ground Current

IOUT = 500 mA

IGND

260

Shutdown Current

VEN ≤ 0.4 V, TJ = +25°C

IDIS

0.12

VEN ≤ 0 V, VIN = 2.0 to 4.5 V, TJ = −40 to +85°C

IDIS

0.55

EN Pin Threshold Voltage

High Threshold

Low Threshold

VEN Voltage increasing

VEN Voltage decreasing

VEN_HI

VEN_LO

0.9

0.4

EN Pin Input Current

VEN = 5.5 V

IEN

100

500

ADJ Pin Current

VADJ = 0.8 V

Turn−On Time

COUT = 1.0 mF, from assertion EN pin to 98%

VOUT(nom)

tON

150

Power Supply Rejection Ratio

VIN = 3.8 V, VOUT = 2.8 V

(Fixed), IOUT = 500 mA

f = 100 Hz

f = 1 kHz

f = 10 kHz

PSRR

Output Noise Voltage

VOUT = 2.5 V (Fixed), VIN = 3.5 V, IOUT = 500 mA

f = 100 Hz to 100 kHz

mVrms

Thermal Shutdown Temperature

Temperature increasing from TJ = +25°C

TSD

160

°C

Thermal Shutdown Hysteresis

Temperature falling from TSD

TSDH

−

°C

Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product

performance may not be indicated by the Electrical Characteristics if operated under different conditions.

4. Performance guaranteed over the indicated operating temperature range by design and/or characterization. Production tested at TJ = TA

= 25

_C. Low duty cycle pulse techniques are used during testing to maintain the junction temperature as close to ambient as possible.

5. Characterized when VOUT falls 100 mV below the regulated voltage at VIN = VOUT(NOM) + 0.5 V.

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