L78L24ABD datasheet(6/33 Pages) STMICROELECTRONICS

部件名	L78L24ABD

功能描述	Positive voltage regulators

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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6 / 33 page

Electrical characteristics

L78LxxAB, L78LxxAC, L78LxxC

6/33

Doc ID 2145 Rev 21

4

Electrical characteristics

Refer to the test circuits, TJ = 0 to 125 °C, IO = 40 mA, CI = 0.33 µF, CO = 0.1 µF unless

otherwise specified.

Table 4.

Electrical characteristics of L78L33C (VI = 8.3 V)

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

VO

Output voltage

TJ = 25 °C

3.036

3.3

3.564

V

VO

Output voltage

IO = 1 to 40 mA, VI = 5.3 to 20 V

2.97

3.63

V

IO = 1 to 70 mA, VI = 8.3 V

2.97

3.63

ΔVO

Line regulation

VI = 5.3 to 20 V, TJ = 25 °C

150

mV

VI = 6.3 to 20 V, TJ = 25 °C

100

ΔVO

Load regulation

IO = 1 to 100 mA, TJ = 25 °C

60

mV

IO = 1 to 40 mA, TJ = 25 °C

30

Id

Quiescent current

TJ = 25 °C

6

mA

TJ = 125 °C

5.5

mA

ΔId

Quiescent current change

IO = 1 to 40 mA

0.2

mA

VI = 6.3 to 20 V

1.5

eN

Output noise voltage

B =10 Hz to 100 kHz, TJ = 25 °C

40

µV

SVR

Supply voltage rejection

VI = 6.3 to 16.3 V, f = 120 Hz

IO = 40 mA, TJ = 25 °C

41

49

dB

Vd

Dropout voltage

1.7

V

Table 5.

Electrical characteristics of L78L05C (VI = 10 V)

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

VO

Output voltage

TJ = 25 °C

4.6

5

5.4

V

VO

Output voltage

IO = 1 to 40 mA, VI = 7 to 20 V

4.5

5.5

V

IO = 1 to 70 mA, VI = 10 V

4.5

5.5

ΔVO

Line regulation

VI = 8.5 to 20 V, TJ = 25 °C

200

mV

VI = 9 to 20 V, TJ = 25 °C

150

ΔVO

Load regulation

IO = 1 to 100 mA, TJ = 25 °C

60

mV

IO = 1 to 40 mA, TJ = 25 °C

30

Id

Quiescent current

TJ = 25 °C

6

mA

TJ = 125 °C

5.5

mA

ΔId

Quiescent current change

IO = 1 to 40 mA

0.2

mA

VI = 8 to 20 V

1.5

eN

Output noise voltage

B =10 Hz to 100 kHz, TJ = 25 °C

40

µV

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