L7818CV(2014) 查看數據表（PDF） - STMicroelectronics

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L7818CV
(Rev.:2014)

Positive voltage regulator ICs

STMicroelectronics 

Positive voltage regulator ICs

Electrical characteristics

VI = 14 V, IO = 1 A, TJ = 0 to 125 °C (L7808AC), TJ = -40 to 125 °C (L7808AB), unless

otherwise specified(c).

Table 5. Electrical characteristics of L7808A

Symbol

Parameter

Test conditions

Min. Typ. Max. Unit

VO Output voltage

VO Output voltage

VO Output voltage

ΔVO (1) Line regulation

ΔVO (1) Load regulation

Iq

Quiescent current

TJ = 25°C

IO = 5 mA to 1 A, VI = 10.6 to 21 V

IO = 1 A, VI = 21 to 23 V, TJ = 25°C

VI = 10.6 to 25 V, IO = 500 mA,

TJ = 25°C

VI = 11 to 17 V

VI = 11 to 17 V, TJ = 25°C

VI = 10.4 to 23 V, TJ = 25°C

IO = 5 mA to 1 A

IO = 5 mA to 1.5 A, TJ = 25°C

IO = 250 to 750 mA

TJ = 25°C

7.84 8 8.16 V

7.7

8

8.3

V

7.7

8

8.3

V

12

80

mV

15

80

mV

5

40 mV

12

80

mV

25 100

30 100 mV

10

50

4.3

6

mA

6

mA

VI = 11 to 23 V, IO = 500 mA

0.8 mA

ΔIq Quiescent current change VI = 10.6 to 23 V, TJ = 25°C

0.8 mA

IO = 5 mA to 1 A

0.5 mA

SVR Supply voltage rejection

VI = 11.5 to 21.5 V, f = 120 Hz,

IO = 500 mA

62

dB

Vd Dropout voltage

IO = 1 A, TJ = 25°C

2

V

eN Output noise voltage

TA = 25°C, B =10 Hz to 100 kHz

10

µV/VO

RO Output resistance

f = 1 kHz

18

mΩ

Isc Short circuit current

VI = 35 V, TA = 25°C

0.2

A

Iscp Short circuit peak current TJ = 25°C

2.2

A

ΔVO/ΔT Output voltage drift

-0.8

mV/°C

1. Load and line regulation are specified at constant junction temperature. Changes in VO due to heating effects must be

taken into account separately. Pulse testing with low duty cycle is used.

c. Minimum load current for regulation is 5 mA.

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