LD1585CV datasheet(7/15 Pages) STMICROELECTRONICS

Part #	LD1585CV

Description	5 A low dropout fast response positive voltage regulator adjustable

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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LD1585CXX

Electrical characteristics

7/15

5

Electrical characteristics

Table 4.

Electrical characteristics of LD1585C# (VI = 4.25 V, CI = CO =10 µF, TJ = 0 to 125 °C,

unless otherwise specified.)

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

VO

Output voltage

IO = 10mA, VI - VO = 3V, TJ = 25°C

1.237

1.25

1.263

V

IO = 10mA to 5A, VI - VO =1.5 to 25V

(1)

1.

See short-circuit current curve for available output current at fixed dropout.

1.225

1.25

1.275

V

ΔVO

Line regulation

IO = 10mA, VI = 2.75 to 15V TJ = 25°C

0.015

0.2

%

IO = 10mA, VI = 2.75 to 15V

0.1

0.2

%

ΔVO

Load regulation

IO = 10mA to 5A, TJ = 25°C

0.1

0.3

%

IO = 0 to 5A

0.25

0.5

%

Vd

Dropout voltage

IO = 5A

1.2

1.4

V

IO(min)

Minimum load current

VI = 25V

3

10

mA

Isc

Short circuit current

VI - VO = 5.5V

5.5

7

A

Thermal regulation

TJ = 25°C, 30ms pulse

0.004

0.02

%/W

SVR

Supply voltage rejection

f = 120 Hz, CO = 25µF, CADJ = 25µF,

IO = 5A, VI - VO = 3 ± 1V

60

75

dB

IADJ

Adjust pin current

IO = 10 mA

50

100

µA

ΔIADJ Adjust pin current change IO = 10mA to 5A, VI = 3 to 25V (1)

0.2

5

µA

eN

RMS output noise voltage

(% of VO)

TJ = 25°C, f =10Hz to 10kHz

0.003

%

S

Temperature stability

0.5

%

S

Long term stability

TJ = 125°C, 1000Hrs

0.5

%

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