LT1185CQ#TR Linear Technology, LT1185CQ#TR Datasheet - Page 16

• Manufacturer Part Number: LT1185CQ#TR
• Description: IC REG LDO ADJUSTABLE 3A DDPAK-5
• Manufacturer: Linear Technology

Specifications of LT1185CQ#TR

• Regulator Topology: Negative Adjustable
• Voltage - Output: -2.5 ~ -25 V
• Voltage - Input: -4.2 ~ -35 V
• Voltage - Dropout (typical): 0.67V @ 3A
• Number Of Regulators: 1
• Current - Output: 3A
• Current - Limit (min): Adjustable
• Operating Temperature: 0°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: TO-263-5, D²Pak (5 leads + Tab), TO-263BA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

16
LT1185
TYPICAL APPLICATIO S
RELATED PARTS
PART NUMBER
LT1085
LT1117
LT1120A
LT1129
LT1175
LT1585
LT1964
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone]
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
200mA, Low Noise Micropower, Negative LDO
●
FAX: [phone]
+
V
–
IN
NOTE: C3 IMPOVES HIGH FREQUENCY RIPPLE REJECTION BY 6dB AT V
AND BY 14dB AT V
WHEN C3 IS USED
Logic Controlled 3A Low-Side Switch with Fault Protection
U
+
C2
2.2µF
TANT
●
www.linear.com
Improved High Frequency Ripple Rejection
V
FB
IN
OUT
REF
REF
= 12V. C1 IS INCREASED TO 4.7µF TO ENSURE GOOD STABILTITY
5V
R
R
4k
LIM
LIM
LT1185
LT1185
V
IN
GND
GND
LT1185 • TA08
V
V
OUT
OUT
FB
LT1185 • TA09
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
V
I
SD
IN
R1
2.37k
R2
: –0.9V to –20V, V
= 3µA, ThinSOT Package
LOAD
C3
0.05µF
OUT
= 5V,
1N4001
ADD FOR
INDUCTIVE LOADS
OUT(MIN)
C1
4.7µF
TANT
V
© LINEAR TECHNOLOGY CORPORATION 1994
= –1.21V, V
OUT
+
–
LT/LWI 0906 REV F • PRINTED IN USA
DO
= 0.34V, I
Q
= 30µA,
1185ff