LM2931 datasheet(5/23 Pages) ONSEMI

No de pièce	LM2931

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

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Fabricant	ONSEMI [ON Semiconductor]

Site Internet	http://www.onsemi.com

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LM2931, NCV2931 Series

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ELECTRICAL CHARACTERISTICS (Vin = 14 V, IO = 10 mA, CO = 100 mF, CO(ESR) = 0.3 W, TA = 25°C [Note 7])

LM2931C/NCV2931C

LM2931AC/NCV2931AC

Characteristic

Symbol

Min

Typ

Max

Min

Typ

Max

Unit

ADJUSTABLE OUTPUT

Reference Voltage (Note 8, Figure 18)

Vref

V

IO = 10 mA, TA = 25°C

1.14

1.20

1.26

1.17

1.20

1.23

IO ≤ 100 mA, TA = −40 to +125°C

1.08

−

1.32

1.15

−

1.25

Output Voltage Range

VO range

3.0 to

24

2.7 to

29.5

−

3.0 to

24

2.7 to

29.5

−

V

Line Regulation (Vin = VO + 0.6 V to 26 V)

Regline

−

0.2

1.5

−

0.2

1.5

mV/V

Load Regulation (IO = 5.0 mA to 100 mA)

Regload

−

0.3

1.0

−

0.3

1.0

%/V

Output Impedance

ZO

mW/V

IO = 10 mA, DIO = 1.0 mA, f = 10 Hz to 10 kHz

−

40

−

40

−

Bias Current

IB

mA

IO = 100 mA

−

6.0

−

6.0

−

IO = 10 mA

−

0.4

1.0

−

0.4

1.0

Output Inhibited (Vth(OI) = 2.5 V)

−

0.2

1.0

−

0.2

1.0

Adjustment Pin Current

IAdj

−

0.2

−

0.2

−

mA

Output Noise Voltage (f = 10 Hz to 100 kHz)

Vn

−

140

−

140

−

mVrms/V

Long−Term Stability

S

−

0.4

−

0.4

−

%/kHR

Ripple Rejection (f = 120 Hz)

RR

0.10

0.003

−

0.10

0.003

−

%/V

Dropout Voltage

VI−VO

V

IO = 10 mA

−

0.015

0.2

−

0.015

0.2

IO = 100 mA

−

0.16

0.6

−

0.16

0.6

Over−Voltage Shutdown Threshold

Vth(OV)

26

29.5

40

26

29.5

40

V

Output Voltage with Reverse Polarity Input

(Vin = −15 V)

−VO

−0.3

0

−

−0.3

0

−

V

Output Inhibit Threshold Voltages

Vth(OI)

V

Output “On”:

TA = 25°C

−

2.15

1.90

−

2.15

1.90

TA = −40° to +125°C

−

1.20

−

1.20

Output “Off”:

TA = 25°C

2.50

2.26

−

2.50

2.26

−

TA = −40° to +125°C

3.25

−

3.25

−

Output Inhibit Threshold Current (Vth(OI) = 2.5 V)

Ith(OI)

−

30

50

−

30

50

mA

7. Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient as possible.

8. The reference voltage on the adjustable device is measured from the output to the adjust pin across R1.

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