L79L datasheet(8/24 Pages) STMICROELECTRONICS

Il numero della parte	L79L

Spiegazioni elettronici	Negative voltage regulators

PDF	24 Pages

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Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

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Electrical characteristics

L79L

8/24

DocID2511 Rev 18

Refer to the test circuits, VI = - 19 V, IO = 40 mA, CI

= 0.33 μF, CO = 0.1 μF, TJ = 0 to

125 °C for L79L12AC, TJ = -40 to 125 °C for L79L12AB, unless otherwise specified.

Table 5: Electrical characteristics of L79L12AC and L79L12AB

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

Output voltage

TJ = 25°C

-11.5

-12

-12.5

Output voltage

IO = 1 to 40 mA, VI = -14.5 to -27 V

-11.4

-12.6

IO = 1 to 70 mA, VI = -19 V

-11.4

-12.6

∆V

Line regulation

VI = -14.5 to -27 V, TJ = 25 °C

250

VI = -16 to -27 V, TJ = 25 °C

200

∆V

Load regulation

IO = 1 to 100 mA, TJ = 25 °C

100

IO = 1 to 40 mA, TJ = 25 °C

Quiescent current

TJ = 25 °C

6.5

TJ = 125 °C

∆I

Quiescent current

change

IO = 1 to 40 mA

0.1

VI = -16 to -27 V

1.5

Output noise

voltage

B = 10 Hz to 100 kHz, TJ = 25 °C

µV

SVR

Supply voltage

rejection

VI = -15 to -25 V, f = 120 Hz

IO = 40 mA, TJ = 25 °C

Dropout voltage

1.7

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