NCP59744 datasheet(6/10 Pages) ONSEMI

Part #	NCP59744

Description	3.0 A, Dual-Rail Very Low-Dropout Linear Regulator with Programmable Soft-Start

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NCP59744

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TYPICAL CHARACTERISTICS

At TJ = +25°C, VOUT = 1.5 V, VIN = VOUT(TYP) + 0.3 V, VBIAS = 3.3 V, IOUT = 50 mA, VEN = VIN,

CIN = 1 mF, CBIAS = 1 mF, CSS = 0.01 mF, and COUT = 10 mF, unless otherwise noted.

Figure 9. VIN Dropout Voltage vs. (VBIAS −

VOUT) and Temperature TJ

Figure 10. VBIAS Dropout Voltage vs. IOUT and

Temperature TJ

IOUT, OUTPUT CURRENT (A)

3.0

1.0

0.5

0

600

700

800

900

1000

1100

1400

Figure 11. BIAS Pin Current vs. IOUT and

Temperature TJ

Figure 12. BIAS Pin Current vs. VBIAS and

Temperature TJ

IOUT, OUTPUT CURRENT (A)

VBIAS (V)

3.0

1.0

0.5

0

200

600

800

1200

1400

1600

2000

5.0

4.5

4.0

5.5

3.5

3.0

2.5

2.0

0

200

600

800

1000

1400

1800

2000

Figure 13. Soft Start Charging Current ISS vs.

Temperature TJ

Figure 14. L−level PG Voltage vs. Current

TJ, JUNCTION TEMPERATURE (°C)

IPG, PG PIN CURRENT (mA)

100

75

125

50

25

0

−25

−50

0.300

0.325

0.350

0.375

0.400

0.450

0.475

0.500

12

10

8

6

4

2

0

0.1

0.3

0.4

0.5

0.7

0.9

1.0

+125

°C

+25

°C

−40

°C

400

1000

1800

+125

°C

+25

°C

−40

°C

400

1200

1600

+125

°C

+25

°C

−40

°C

0.425

0.2

0.6

0.8

1.5

2.0

2.5

1200

1300

1.5

2.0

2.5

VBIAS − VOUT (V)

4.0

3.5

3.0

2.5

2.0

1.5

1.0

0.5

0

20

40

80

100

140

180

200

4.5

60

120

160

+125

°C

+25

°C

−40

°C

IOUT = 1.5 A

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