L4931ABXX datasheet(21/36 Pages) STMICROELECTRONICS

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L4931ABxx - L4931Cxx

Electrical characteristics

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Table 16.

Electrical characteristics of L4931Cxx80 (refer to the test circuits, TA = 25 °C,

CI = 0.1 µF, CO = 2.2 µF unless otherwise specified).

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

Output voltage

IO = 5 mA, VI = 10 V

7.84

8.16

IO = 5 mA, VI = 10 V, TA=-25 to 85°C

7.68

8.32

Operating input voltage

IO = 250 mA

Iout

Output current limit

300

ΔVO

Line regulation

VI = 8.9 to 20 V, IO = 0.5 mA

ΔVO

Load regulation (1)

VI = 9.1 V, IO = 0.5 to 250 mA

Quiescent current

ON MODE

VI = 9.1 to 20 V, IO = 0 mA

0.8

1.6

VI = 9.1 to 20 V, IO = 250 mA

4.5

OFF MODE

VI = 6 V

140

µA

SVR

Supply voltage rejection

IO = 5 mA

VI = 10.1 ± 1 V

f = 120 Hz

f = 1 kHz

f = 10 kHz

Output noise voltage

B = 10 Hz to 100 kHz

µV

Dropout voltage (1)

IO = 250 mA

0.4

0.6

IO = 250 mA, TA= -40 to 125°C

0.8

VIL

Control input logic low

TA = -40 to 125°C

0.8

VIH

Control Input Logic High

TA = -40 to 125°C

Control input current

VI = 6 V, VC = 6 V

µA

Output bypass

capacitance

ESR = 0.1 to 10

Ω, IO = 0 to 250 mA

µF

For SO-8 package the maximum limit of load regulation and dropout is increased by 20 mV.

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