L78M datasheet(18/47 Pages) STMICROELECTRONICS

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Electrical characteristics

L78M

18/47

DocID2146 Rev 21

Refer to the test circuits, TJ = 25 °C, VI = 23 V, IO = 350 mA, CI = 0.33 µF, CO = 0.1 µF

unless otherwise specified.

Table 14: Electrical characteristics of L78M15C

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

Output voltage

14.4

15.6

Output voltage

IO = 5 to 350 mA, VI = 17.5 to 30 V

14.25

15.75

∆VO

Line regulation

VI = 17.5 to 30 V, IO = 200 mA

100

VI = 20 to 30 V, IO = 200 mA

∆VO

Load regulation

IO = 5 to 500 mA, TJ = 25 °C

300

IO = 5 to 200 mA, TJ = 25 °C

150

Quiescent current

∆Id

Quiescent current

change

IO = 5 to 350 mA

0.5

IO = 200 mA, VI = 17.5 to 30 V

0.8

∆VO/∆T

Output voltage drift

IO = 5 mA, TJ = 0 to 125 °C

-1

mV/°C

SVR

Supply voltage rejection

VI = 18.5 to 28.5 V, f = 120 Hz, IO = 300

Output noise voltage

B = 10 Hz to 100 kHz

µV

Dropout voltage

Isc

Short circuit current

VI = 35 V

240

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