LD1117ADT18TR datasheet(9/24 Pages) STMICROELECTRONICS

Il numero della parte	LD1117ADT18TR

Spiegazioni elettronici	Low drop fixed and adjustable positive voltage regulators

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LD1117A

Electrical characteristics

24

ΔVO

Load regulation

VI = 2.75 V, IO = 0 to 1 A

1

10

mV

ΔVO

Temperature stability

0.5

%

ΔVO

Long term stability

1000 hrs, TJ = 125 °C

0.3

%

VI

Operating input voltage

IO = 100 mA

10

V

Iadj

Adjustment pin current

Vin ≤ 10 V

60

120

µA

ΔIadj

Adjustment pin current

change

Vin - VO = 1.4 to 10 V, IO = 10 mA to 1 A

1

5

µA

IO(min)

Minimum load current

Vin = 10 V

2

5

mA

IO

Output current

VI - VO = 5 V, TJ = 25 °C

1000

1200

mA

eN

Output noise voltage

B =10 Hz to 10 kHz, TJ = 25 °C

100

µV

SVR

Supply voltage rejection

IO = 40 mA, f = 120 Hz

VI - VO = 3 V, Vripple = 1 VPP

60

80

dB

VD

Dropout voltage

IO = 100 mA

1

1.10

V

IO = 500 mA

1.05

1.15

IO = 1 A

1.15

1.30

ΔVO(pwr) Thermal regulation

Ta = 25 °C, 30 ms pulse

0.08

0.2

%/W

Table 7. Electrical characteristics of LD1117A (adjustable) (continued)

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

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