LM2931ACDG datasheet(10/23 Pages) ONSEMI

Il numero della parte	LM2931ACDG

Spiegazioni elettronici	100 mA, Adjustable Output, LDO Voltage Regulator with 60 V Load Dump Protection

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Produttore elettronici	ONSEMI [ON Semiconductor]

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LM2931, NCV2931 Series

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10

0.20

0.30

0.00

Figure 22. Output Noise Voltage vs.

Output Capacitor Impedance

Figure 23. Output Capacitor ESR Stability vs.

Output Load Current

OUTPUT CURRENT (mA)

10

50

90

100

0.50

0.60

Note - Optimum stability uses a 22

mF

output capacitor. Output capacitor values

below 10

mF are not recommended.

Unstable

Stable

0.1

1.0

0.01

|ZO|, MAGNITUDE OF CAPACITOR IMPEDANCE (mW)

10

100

1.0 k

10 k

10

100

Vin = 5.6 V

Vout = 5.0 V

IO = 100 mA

Vnrms 10 Hz to 10 MHz

|ZO| @ 40 kHz

TA = 25°C

Unstable

Marginally

Stable

0

0.10

0.40

20

60

30

70

40

80

22

mF

10

mF

47

mF

100

mF

40

50

60

70

80

90

100

0

0.4

0.8

1.2

1.6

2.0

2.4

010

20

30

25

15

5.0

L, LENGTH OF COPPER (mm)

PD(max) for TA = 50°C

Minimum

Size Pad

L

Free Air

Mounted

Vertically

30

50

70

90

110

130

150

0.4

0.8

1.2

1.6

2.0

2.4

2.8

020

30

50

40

10

L, LENGTH OF COPPER (mm)

170

3.2

RqJA

2.0 oz.

Copper

Graph represents symmetrical layout

3.0 mm

L

RqJA

2.0 oz. Copper

Figure 24. SOP−8 Thermal Resistance and Maximum

Power Dissipation versus P.C.B. Copper Length

Figure 25. DPAK Thermal Resistance and Maximum

Power Dissipation versus P.C.B. Copper Length

PD(max) for TA = 50°C

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