16
LT1185
1185ff
© LINEAR TECHNOLOGY CORPORATION 1994
LT/LWI 0906 REV F • PRINTED IN USA
Logic Controlled 3A Low-Side Switch with Fault Protection
LT1185 • TA08
REF GND
V
OUT
LT1185FB
V
IN
5V
LOAD
1N4001
ADD FOR
INDUCTIVE LOADS
R
LIM
4k
Improved High Frequency Ripple Rejection
+
–
V
OUT
+
–
V
IN
LT1185 • TA09
R
LIM
C2
2.2µF
TANT
R1
2.37k
R2
C3
0.05µF
C1
4.7µF
TANT
NOTE: C3 IMPOVES HIGH FREQUENCY RIPPLE REJECTION BY 6dB AT V
OUT
= 5V,
AND BY 14dB AT V
OUT
= 12V. C1 IS INCREASED TO 4.7µF TO ENSURE GOOD STABILTITY
WHEN C3 IS USED
REF GND
FB
V
OUT
LT1185V
IN
+
PART NUMBER DESCRIPTION COMMENTS
LT1085 7.5A Low Dropout Regulator 1V Dropout Voltage
LT1117 800mA Low Dropout Regulator with Shutdown Reverse Voltage and Reverse Current Protection
LT1120A Micropower Regulator with Comparator and Shutdown 20µA Supply Current, 2.5V Reference Output
LT1129 200mA Micropower Low Dropout Regulator 400mV Dropout Voltage, 50µA Supply Current
LT1175 500mA Negative Low Dropout Micropower Regulator 45µA Supply Current, Adjustable Current Limit
LT1585 4.6A Low Dropout Fast Transient Response Regulator For High Performance Microprocessors
LT1964 200mA, Low Noise Micropower, Negative LDO V
IN
: –0.9V to –20V, V
OUT(MIN)
= –1.21V, V
DO
= 0.34V, I
Q
= 30µA,
I
SD
= 3µA, ThinSOT Package
RELATED PARTS
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
TYPICAL APPLICATIO S
U
