LT1185(Rev_D) Просмотр технического описания (PDF) - Linear Technology

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LT1185
(Rev.:Rev_D)

Low Dropout Regulator

Linear Technology 

LT1185

U

TYPICAL APPLICATIO S

Logic Controlled 3A Low-Side Switch with Fault Protection

5V

RLIM

4k

REF

GND

FB

LT1185 VOUT

LOAD

1N4001

ADD FOR

INDUCTIVE LOADS

VIN

LT1185 • TA08

Improved High Frequency Ripple Rejection

+

+ C2

2.2µF

RLIM

TANT

VIN

REF

GND

FB

–

VIN

LT1185

R1

2.37k

R2

C3

0.05µF

+

C1

4.7µF VOUT

TANT

VOUT

–

LT1185 • TA09

NOTE: C3 IMPOVES HIGH FREQUENCY RIPPLE REJECTION BY 6dB AT VOUT = 5V,

AND BY 14dB AT VOUT = 12V. C1 IS INCREASED TO 4.7µF TO ENSURE GOOD STABILTITY

WHEN C3 IS USED

RELATED PARTS

PART NUMBER

LT1085

LT1117

LT1120A

LT1129

LT1175

LT1585

DESCRIPTION

7.5A Low Dropout Regulator

800mA Low Dropout Regulator with Shutdown

Micropower Regulator with Comparator and Shutdown

200mA Micropower Low Dropout Regulator

500mA Negative Low Dropout Micropower Regulator

4.6A Low Dropout Fast Transient Response Regulator

16 Linear Technology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

(408)432-1900 q FAX:(408)434-0507 q www.linear-tech.com

COMMENTS

1V Dropout Voltage

Reverse Voltage and Reverse Current Protection

20µA Supply Current, 2.5V Reference Output

400mV Dropout Voltage, 50µA Supply Current

45µA Supply Current, Adjustable Current Limit

For High Performance Microprocessors

1185fd LT/GP 0499 2K REV D • PRINTED IN USA

© LINEAR TECHNOLOGY CORPORATION 1994

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