LD1085 查看數據表（PDF） - STMicroelectronics

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LD1085

3A Low drop positive voltage regulator adjustable and fixed

STMicroelectronics 

Electrical characteristics

LD1085 series

Table 9.

Symbol

Electrical characteristics of LD1085#

(VI=4.25V, CI = CO =10μF, TA = -40 to 125°C, unless otherwise specified).

Parameter

Test

Min. Typ. Max. Unit

VO

ΔVO

ΔVO

Vd

IO(min)

Isc

SVR

IADJ

ΔIADJ

eN

S

Output voltage (1)

Line Regulation

Load Regulation

Dropout Voltage

Minimum Load Current

Short Circuit Current

Thermal Regulation

Supply Voltage Rejection

Adjust Pin Current

Adjust Pin Current Change (1)

RMS Output Noise Voltage (%

of VO)

Temperature Stability

IO = 10mA TJ = 25°C

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

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

TJ = 25°C

IO = 10mA, VI = 2.85 to 16.5V

IO = 10mA to 3A, TJ = 25°C

IO = 0 to 3A

IO = 3A

VI = 30V

VI - VO = 5V

VI - VO = 25V

TA = 25°C, 30ms pulse

f = 120 Hz, CO = 25µF,CADJ = 25 µF,

IO = 3A, VI = 6.25 ± 3V

VI = 4.25V, IO = 10 mA

IO = 10mA to 3A, VI = 2.85 to 16.5V

TA = 25°C, f =10Hz to 10KHz

S Long Term Stability

TA = 125°C, 1000Hrs

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

1.237

1.225

5.5

0.5

60

1.25 1.263

1.25 1.275

0.015 0.2

0.035 0.2

0.1 0.3

0.2 0.4

1.3 1.5

3

10

6.5

0.7

0.003 0.015

72

55 120

0.2 5

0.003

0.5

0.5

V

V

%

%

%

%

V

mA

A

A

%/W

dB

μA

μA

%

%

%

12/27

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