L78L datasheet(24/46 Pages) STMICROELECTRONICS

Il numero della parte	L78L

Spiegazioni elettronici	Positive voltage regulators

PDF	46 Pages

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Electrical characteristics

L78L

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DocID2145 Rev 25

Refer to the test circuits, TJ = 0 to 125 °C (AC) TJ = -40 to 125 °C (AB),VI = 33 V,

IO = 40 mA, CI = 0.33 μF, CO = 0.1 μF unless otherwise specified.

Table 21. Electrical characteristics of L78L24AB and L78L24AC

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

Output voltage

TJ = 25 °C

Output voltage

IO = 1 to 40 mA, VI = 27 to 38 V

22.8

25.2

IO = 1 to 70 mA, VI = 33 V

22.8

25.2

DVO

Line regulation

VI = 27 to 38 V, TJ = 25 °C

350

VI = 28 to 38 V, TJ = 25 °C

300

DVO

Load regulation

IO = 1 to 100 mA, TJ = 25 °C

200

IO = 1 to 40 mA, TJ = 25 °C

100

Quiescent current

TJ = 25 °C

6.5

TJ = 125 °C

DId

Quiescent current change

IO = 1 to 40 mA

0.1

VI = 28 to 38 V

1.5

Output noise voltage

B = 10 Hz to 100 kHz, TJ = 25 °C

200

µV5y

SVR

Supply voltage rejection

VI = 29 to 33 V, f = 120 Hz

IO = 40 mA, TJ = 25 °C

Dropout voltage

1.7

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