LD1085C 查看數據表（PDF） - STMicroelectronics

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LD1085C

3A LOW DROP POSITIVE VOLTAGE REGULATOR ADJUSTABLE AND FIXED

STMicroelectronics 

LD1085C SERIES

ELECTRICAL CHARACTERISTICS OF LD1085CDT (VI=4.25V, CI = CO =10µF, TA = -40 to 125°C,

unless otherwise specified.)

Symbol

Parameter

Test Conditions

Min.

VO

∆VO

∆VO

Vd

IO(min)

Isc

SVR

IADJ

∆IADJ

eN

S

S

Output Voltage

Line Regulation

Load Regulation

Dropout Voltage

Minimum Load Current

Short Circuit Current

Termal Regulation

Supply Voltage Rejection

Adjust Pin Current

Adjust Pin Current Change

RMS Output Noise Voltage

(% of VO)

Temperature Stability

Long Term Stability

IO = 10mA TJ = 25°C

IO = 10mA to 5AVI = 2.85 to 30V (note 1)

IO = 10mA VI = 2.85 to 16.5V TJ = 25°C

IO = 10mA VI = 2.85 to 16.5V

IO = 10mA to 5ATJ = 25°C

IO = 0 to 5A

IO = 5A

VI = 30V

VI - VO = 5V

VI - VO = 25V

TA = 25°C, 30ms pulse

f = 120 Hz, CO = 25 µF, CADJ = 25 µF,

IO = 5A

VI = 6.25 ± 3V

VI = 4.25V IO = 10 mA

IO = 10mA to 5A VI = 2.75 to 16.5V

(note 1)

TA = 25°C f =10Hz to 10KHz

TA = 125°C 1000Hrs

1.225

1.213

3.2

0.2

60

NOTE 1: See short-circuit current curve for available output current at fixed dropout.

Typ.

1.25

1.25

0.015

0.035

0.1

0.2

1.3

3

4.5

0.5

0.003

75

55

0.2

0.003

0.5

0.5

Max.

1.275

1.288

0.2

0.2

0.3

0.4

1.5

10

0.015

120

5

Unit

V

V

%

%

%

%

V

mA

A

A

%/W

dB

µA

µA

%

%

%

9/15

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