LD1086 데이터 시트보기 (PDF) - STMicroelectronics

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LD1086

1.5 A adjustable and fixed low drop positive voltage regulator

STMicroelectronics 

LD1086

Electrical characteristics

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

Table 9. Electrical characteristics of LD1086#

Symbol

Parameter

Test conditions

Min. Typ. Max. Unit

Vref Reference voltage (1)

IO = 10 mA TJ = 25 °C

IO = 10 mA to 1.5 A, VI = 2.85 to

30 V

1.237

1.225

ΔVO Line regulation

ΔVO Load regulation

Vd Dropout voltage

IO(min) Minimum load current

Isc Short-circuit current

Thermal regulation

SVR Supply voltage rejection

IADJ

ΔIADJ

Adjust pin current

Adjust pin current change (1)

IO = 10 mA, VI = 2.8 to 16.5 V,

TJ = 25 °C

IO = 10 mA, VI = 2.8 to 16.5 V

IO = 10 mA to 1.5 A, TJ = 25 °C

IO = 0 to 1.5 A

IO = 1.5 A

VI = 30 V

VI - VO = 5 V

VI - VO = 25 V

TA = 25 °C, 30 ms pulse

f = 120 Hz, CO = 25 µF,CADJ = 25 µF,

IO = 1.5 A, VI = 6.25 ± 3 V

VI = 4.25 V, IO = 10 mA

IO = 10 mA to 1.5 A, VI = 2.8 to

16.5 V

1.5

0.05

60

RMS output noise voltage

eN

(% of VO)

S Temperature stability

TA = 25 °C, f =10 Hz to 10 kHz

S Long term stability

TA = 125 °C, 1000 Hrs

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

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

2.3

0.2

0.01 0.04

88

40 120

0.2 5

0.003

0.5

0.5

V

V

%

%

%

%

V

mA

A

A

%/W

dB

µA

µA

%

%

%

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