L7915ACV datasheet(6/13 Pages) STMICROELECTRONICS

部件名	L7915ACV

功能描述	2% NEGATIVE VOLTAGE REGULATORS

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制造商	STMICROELECTRONICS [STMicroelectronics]

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L7900AC SERIES

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Table 9: Electrical Characteristics Of L7918A (refer to the test circuits, TJ = 0 to 125°C, VI = -27V,

IO = 500 mA, CI = 2.2 µF, CO = 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 L7920A (refer to the test circuits, TJ = 0 to 125°C, VI = -29V,

IO = 500 mA, CI = 2.2 µF, CO = 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

-17.64

-18

-18.36

V

VO

Output Voltage

IO = -5 mA to -1 A

PO ≤ 15W

VI = -22 to -33 V

-17.3

-18

-18.7

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

3

mA

∆I

d

Quiescent Current Change

IO = 5 mA to 1 A

0.5

mA

VI = -22 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

300

µV

SVR

Supply Voltage Rejection

∆V

I = 10 V f = 120Hz

54

60

dB

Vd

Dropout Voltage

IO = 1 A

TJ = 25°C

∆V

O = 100

mV

1.1

V

Isc

Short Circuit Current

1.1

A

Iscp

Short Circuit Peak Current

TJ = 25°C

2.2

A

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

VO

Output Voltage

TJ = 25°C

-19.6

-20

-20.4

V

VO

Output Voltage

IO = -5 mA to -1 A

PO ≤ 15W

VI = -24 to -35 V

-19.2

-20

-20.8

V

∆V

O(*)

Line Regulation

VI = -23 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

3

mA

∆I

d

Quiescent Current Change

IO = 5 mA to 1 A

0.5

mA

VI = -24 to -35 V

1

∆V

O/∆T

Output Voltage Drift

IO = 5 mA

-1.1

mV/°C

eN

Output Noise Voltage

B = 10Hz to 100KHz

TJ = 25°C

350

µV

SVR

Supply Voltage Rejection

∆V

I = 10 V f = 120Hz

54

60

dB

Vd

Dropout Voltage

IO = 1 A

TJ = 25°C

∆V

O = 100

mV

1.1

V

Isc

Short Circuit Current

0.9

A

Iscp

Short Circuit Peak Current

TJ = 25°C

2.2

A

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