LT1185(Rev_D) Ver la hoja de datos (PDF) - Linear Technology

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LT1185
(Rev.:Rev_D)

Low Dropout Regulator

Linear Technology 

LT1185

UU W U

APPLICATIO S I FOR ATIO

5V Logic, Positive Regulated Output

+

+ VOUT

5V

RLIM†

R1

4k

*

REF

GND

+

FB

Q1

2N3906

VIN

LT1185

R2

R5

300k

VOUT

VIN

R7

R6

2.4k† 30k

–

LT1185 • F3a

*CMOS LOGIC

†FOR HIGHER VALUES OF RLIM, MAKE R7 = (RLIM)(0.6)

5V Logic, Negative Regulated Output

5V

VIN –

“HI” = OUTPUT “OFF”

3 EA 1N4148

Q1

2N3906

R4

33k

RLIM

REF

GND

FB

VIN

LT1185

VOUT

LT1185 • F03b

Figure 3. Shutdown Techniques

10

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