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LM2931AD33

VERY LOW DROP VOLTAGE REGULATOR WITH INHIBIT FUNCTION

STMicroelectronics 

LM2931 SERIES

ELECTRICAL CHARACTERISTICS FOR LM2931A 3.3V (refer to the test circuits,

Tj = 25 oC, VIN = 14 V, CIN = 0.1 µF, CO = 100 µF, IO = 10mA, VINH = 0V unless otherwise specified)

Symbol

Parameter

Test Conditions

Min. Typ. Max. Unit

VI Maximum Operating Input

IO = 10 mA

Tj = -40 to 125 oC

26

37

V

Voltage

VO Output Voltage

3.175 3.3 3.425

V

VO Output Voltage

∆VO Line Regulation

IO = 100 mA VIN = 6 to 26 V

Tj = -40 to 125 oC

VIN = 9 to 16 V

3.135 3.3 3.465

V

2

10

mV

∆VO Line Regulation

VIN = 6 to 26 V

4

33

mV

∆VO Load Regulation

IO = 5 to 100 mA

10

33

mV

Vd Dropout Voltage (Note 1, 2) IO = 10 mA

90

2 50

V

Vd Dropout Voltage (Note 1, 2) IO = 100 mA

250 600

V

Id Quiescent Current

ON Mode: IOUT = 100mA

2.5

30

mA

Id Quiescent Current

OFF Mode: VINH = 2.5 V RLOAD = 330Ω

0.3

1

mA

ISC Short Circuit Current

100

300

mA

SVR Supply Voltage Rejection

VIL Control Input Voltage

VIH Control Input Voltage

IO = 100 mA VIN = 14 ± 2V

f = 120 Hz Tj = -40 to 125 oC

Tj = -40 to 125 oC

Tj = -40 to 125 oC

55

78

dB

2

1.2

V

3.25

2

V

IINH Inhibit Input Current

VINH = 2.5 V

22

50

µA

VIN Transient Input Voltage

RLOAD = 330Ω τ < 100ms

60

70

V

VIN Reverse Polarity Input

VO ± 0.3V

RLOAD = 330Ω

-15

-50

V

Voltage

VIN Reverse Polarity Input

RLOAD = 330Ω τ < 100ms

-50

V

Voltage Transient

eN Output Noise Voltage

B = 10Hz to 100KHz

330

Note 1: Reference Voltage is measured from VOUT to AJD pin.

Note 2: Vd measured when the output voltage has dropped 100mV from the nominal value obtained at 14V.

µVRMS

4/16

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