L7805CV datasheet(14/34 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 21: Electrical Characteristics Of L7818C (refer to the test circuits, TJ = 0 to 125°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 22: Electrical Characteristics Of L7820C (refer to the test circuits, TJ = 0 to 125°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 = 21 to 33 V

17.1

18

18.9

V

∆V

O(*)

Line Regulation

VI = 21 to 33 V

TJ = 25°C

360

mV

VI = 24 to 30 V

TJ = 25°C

180

∆V

O(*)

Load Regulation

IO = 5 mA to 1.5 A

TJ = 25°C

360

mV

IO = 250 to 750 mA

TJ = 25°C

180

Id

Quiescent Current

TJ = 25°C

8

mA

∆I

d

Quiescent Current Change

IO = 5 mA to 1 A

0.5

mA

VI = 21 to 33 V

1

∆V

O/∆T

Output Voltage Drift

IO = 5 mA

-1

mV/°C

eN

Output Noise Voltage

B =10Hz to 100KHz

TJ = 25°C

110

µV/V

O

SVR

Supply Voltage Rejection

VI = 22 to 32 V

f = 120Hz

53

dB

Vd

Dropout Voltage

IO = 1 A

TJ = 25°C

2

V

RO

Output Resistance

f = 1 KHz

22

m

Ω

Isc

Short Circuit Current

VI = 35 V

TJ = 25°C

0.20

A

Iscp

Short Circuit Peak Current

TJ = 25°C

2.1

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 = 23 to 35 V

19

20

21

V

∆V

O(*)

Line Regulation

VI = 22.5 to 35 V

TJ = 25°C

400

mV

VI = 26 to 32 V

TJ = 25°C

200

∆V

O(*)

Load Regulation

IO = 5 mA to 1.5 A

TJ = 25°C

400

mV

IO = 250 to 750 mA

TJ = 25°C

200

Id

Quiescent Current

TJ = 25°C

8

mA

∆I

d

Quiescent Current Change

IO = 5 mA to 1 A

0.5

mA

VI = 23 to 35 V

1

∆V

O/∆T

Output Voltage Drift

IO = 5 mA

-1

mV/°C

eN

Output Noise Voltage

B =10Hz to 100KHz

TJ = 25°C

150

µV/V

O

SVR

Supply Voltage Rejection

VI = 24 to 35 V

f = 120Hz

52

dB

Vd

Dropout Voltage

IO = 1 A

TJ = 25°C

2

V

RO

Output Resistance

f = 1 KHz

24

m

Ω

Isc

Short Circuit Current

VI = 35 V

TJ = 25°C

0.18

A

Iscp

Short Circuit Peak Current

TJ = 25°C

2.1

A

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