LD1085D2M-R datasheet(7/27 Pages) STMICROELECTRONICS

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LD1085xx

Electrical characteristics

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Electrical characteristics

Table 4.

Electrical characteristics of LD1085#15

(VI = 4.5 V, CI = CO =10 µF, TA = -40 to 125 °C, unless otherwise specified).

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

Output voltage (1)

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

IO = 0 mA, TJ = 25°C

1.485

1.5

1.515

IO = 0 to 3A, VI = 3.1 to 30V

1.47

1.5

1.53

ΔVO

Line regulation

IO = 0 mA, VI = 3.1 to 18V, TJ = 25°C

0.2

IO = 0 mA, VI = 3.1 to 15V

0.4

ΔVO

Load regulation

IO = 0 to 3A, TJ = 25°C

IO = 0 to 3A

Dropout voltage

IO =3 A

1.3

1.5

Quiescent current

VI ≤30V

Isc

Short circuit current

VI - VO = 5V

3.2

4.5

VI - VO = 25V

0.2

0.5

Thermal regulation

TA = 25°C, 30ms pulse

0.008

0.04

%/W

SVR

Supply voltage rejection

f = 120 Hz, CO = 25µF, IO = 3A

VI = 7.5 ± 3V

RMS output noise voltage (% of

VO)

TA = 25°C, f =10Hz to 10kHz

0.003

Temperature stability

0.5

Long term stability

TA = 125°C, 1000Hrs

0.5

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