NCV8537 datasheet(9/16 Pages) ONSEMI

Part #	NCV8537

Description	500 mA High Accuracy Low Dropout Linear Regulator with Power Good Function

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Manufacturer	ONSEMI [ON Semiconductor]

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NCV8537

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9

ELECTRICAL CHARACTERISTICS − ADJUSTABLE

(Vout = 1.25 V typical, Vin = 2.9 V, TA = −40C to +125C, unless otherwise noted, Note 12)

Characteristic

Symbol

Min

Typ

Max

Unit

Reference Voltage (Accuracy)

Vin = 2.9 V to Vout +4.0 V, Iload = 0.1 mA to 500 mA, TA = 25C

Vref

−0.90%

1.239

1.25

0.90%

1.261

V

Reference Voltage (Accuracy)

Vin = 2.9 V to Vout + 4.0 V, Iload = 0.1 mA to 500 mA, TA = 0C to +85C

Vref

−1.40%

1.233

1.25

1.40%

1.268

V

Reference Voltage (Accuracy)

Vin = 2.9 V to Vout + 4.0 V, Iload = 0.1 mA to 500 mA, TA = −40C to

+125C

Vref

−1.50%

1.231

1.25

1.50%

1.269

V

Line Regulation

Vin = 2.9 V to 12 V, Iload = 0.1 mA

LineReg

0.04

mV/V

Load Regulation

Vin = 2.9 V to 12 V, Iload = 0.1 mA to 500 mA

LoadReg

0.04

mV/mA

Dropout Voltage (Vout = 2.5 V − 10 V)

Iload = 500 mA

Iload = 300 mA

Iload = 50 mA

Iload = 0.1 mA

VDO

340

230

110

10

mV

Peak Output Current (See Figure 14)

Ipk

500

700

830

mA

Short Output Current (See Figure 14) Vin < 7 V, TA = 25C

Vout v 3.3 V

Vout > 3.3 V

Isc

900

930

mA

Thermal Shutdown / Hysteresis

TJ

160/

10

C

Ground Current

In Regulation

Iload = 500 mA (Note 12)

Iload = 300 mA

Iload = 50 mA

Iload = 0.1 mA

In Dropout

Vin = Vout + 0.1 V or 2.9 V (whichever is higher), Iload = 0.1 mA

In Shutdown

VSD = 0 V

IGND

IGNDsh

9

4.6

0.8

14

7.5

2.5

220

500

1

mA

Output Noise

Cnr = 0 nF, Iload = 500 mA, f = 10 Hz to 100 kHz, Cout = 10 mF

Cnr = 10 nF, Iload = 500 mA, f = 10 Hz to 100 kHz, Cout = 10 mF

Vnoise

69

46

mVrms

Power Good Voltage

Low Threshold

Hysteresis

High Threshold

Velft

93

95

2

97

99

% of

Vout

Power Good Pin Voltage Saturation (Ief = 1.0 mA)

Vefdo

200

mV

Power Good Pin Leakage

Iefleak

1

mA

Power Good Pin Blanking Time (Note 13)

tef

50

ms

Shutdown

Threshold Voltage ON

Threshold Voltage OFF

VSD

2

0.4

V

SD Input Current, VSD = 0 V to 0.4 V or VSD = 2.0 V to Vin

Vin v 5.4 V

Vin > 5.4 V

ISD

0.07

1

5

mA

Output Current In Shutdown Mode, Vout = 0 V

IOSD

0.07

1

mA

Reverse Bias Protection, Current Flowing from the Output Pin to GND

(Vin = 0 V, Vout_forced = Vout (nom) v 7 V)

IOUTR

1

mA

12.Performance guaranteed over the 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.

13.Can be disabled per customer request.

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