L7805CV datasheet(8/34 Pages) STMICROELECTRONICS

Part #	L7805CV

Description	POSITIVE VOLTAGE REGULATORS

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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L7800 SERIES

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Table 9: Electrical Characteristics Of L7818 (refer to the test circuits, TJ = -55 to 150°C, VI = 26V,

IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified).

(*) 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.

Table 10: Electrical Characteristics Of L7820 (refer to the test circuits, TJ = -55 to 150°C, VI = 28V,

IO = 500 mA, CI = 0.33 µF, CO = 0.1 µF unless otherwise specified).

(*) 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.

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

VO

Output Voltage

TJ = 25°C

17.3

18

18.7

V

VO

Output Voltage

IO = 5 mA to 1 A

PO ≤ 15W

VI = 22 to 33 V

17.1

18

18.9

V

∆V

O(*)

Line Regulation

VI = 21 to 33 V

TJ = 25°C

180

mV

VI = 24 to 30 V

TJ = 25°C

90

∆V

O(*)

Load Regulation

IO = 5 mA to 1.5 A

TJ = 25°C

180

mV

IO = 250 to 750 mA

TJ = 25°C

90

Id

Quiescent Current

TJ = 25°C

6

mA

∆I

d

Quiescent Current Change

IO = 5 mA to 1 A

0.5

mA

VI = 22 to 33 V

0.8

∆V

O/∆T

Output Voltage Drift

IO = 5 mA

2.3

mV/°C

eN

Output Noise Voltage

B =10Hz to 100KHz

TJ = 25°C

40

µV/V

O

SVR

Supply Voltage Rejection

VI = 22 to 32 V

f = 120Hz

59

dB

Vd

Dropout Voltage

IO = 1 A

TJ = 25°C

2

2.5

V

RO

Output Resistance

f = 1 KHz

22

m

Ω

Isc

Short Circuit Current

VI = 35 V

TJ = 25°C

0.75

1.2

A

Iscp

Short Circuit Peak Current

TJ = 25°C

1.3

2.2

3.3

A

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

VO

Output Voltage

TJ = 25°C

19.2

20

20.8

V

VO

Output Voltage

IO = 5 mA to 1 A

PO ≤ 15W

VI = 24 to 35 V

19

20

21

V

∆V

O(*)

Line Regulation

VI = 22.5 to 35 V

TJ = 25°C

200

mV

VI = 26 to 32 V

TJ = 25°C

100

∆V

O(*)

Load Regulation

IO = 5 mA to 1.5 A

TJ = 25°C

200

mV

IO = 250 to 750 mA

TJ = 25°C

100

Id

Quiescent Current

TJ = 25°C

6

mA

∆I

d

Quiescent Current Change

IO = 5 mA to 1 A

0.5

mA

VI = 24 to 35 V

0.8

∆V

O/∆T

Output Voltage Drift

IO = 5 mA

2.5

mV/°C

eN

Output Noise Voltage

B =10Hz to 100KHz

TJ = 25°C

40

µV/V

O

SVR

Supply Voltage Rejection

VI = 24 to 35 V

f = 120Hz

58

dB

Vd

Dropout Voltage

IO = 1 A

TJ = 25°C

2

2.5

V

RO

Output Resistance

f = 1 KHz

24

m

Ω

Isc

Short Circuit Current

VI = 35 V

TJ = 25°C

0.75

1.2

A

Iscp

Short Circuit Peak Current

TJ = 25°C

1.3

2.2

3.3

A

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