LD1085CDT-R datasheet(7/16 Pages) STMICROELECTRONICS

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LD1085CXX

Electrical characteristics

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Electrical characteristics

Table 4.

Electrical characteristics of LD1085CDT

(VI = 4.25 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 = 10mA TJ = 25°C

1.225

1.25

1.275

IO = 10mA to 3A, VI = 2.85 to 30V

(1)

1.213

1.25

1.288

ΔVO

Line regulation

IO = 10mA, VI = 2.85 to 16.5V,

TJ = 25°C

0.015

0.2

IO = 10mA, VI = 2.85 to 16.5V

0.035

0.2

ΔVO

Load regulation

IO = 10mA to 5A, TJ = 25°C

0.1

0.3

IO = 0 to 5A

0.2

0.4

Dropout voltage

IO = 5A

1.3

1.5

IO(min)

Minimum load 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

0.003

0.015

%/W

SVR

Supply voltage rejection

f = 120 Hz, CO = 25µF,CADJ = 25 µF,

IO = 3A, VI = 6.25 ± 3V

IADJ

Adjust pin current

VI = 4.25V, IO = 10 mA

120

µA

ΔIADJ

Adjust pin current change

IO = 10mA to 3A, VI = 2.75 to 16.5V

(1)

0.2

µA

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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