LTC1153 View Datasheet(PDF) - Linear Technology
Part Name
Description
Manufacturer
LTC1153 Datasheet PDF : 16 Pages
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LTC1153
APPLICATI S I FOR ATIO
Five volt linear regulators with small output capacitors
are the most difficult to protect as they can “switch”
from a voltage mode to a current limited mode very
quickly. The large output capacitors on many switching
regulators, on the other hand, may be able to hold the
supply pin of the LTC1153 above 3.5V sufficiently long
that this extra filtering is not required.
Because the LTC1153 is micropower in both the standby
and ON state, the voltage drop across the supply filter
is less than 2mV, and does not significantly alter the
accuracy of the 100mV drain sense threshold voltage.
U
TYPICAL APPLICATIO S
Over-Temperature Circuit Breaker
Over-Voltage Circuit Breaker
12V
5V
IN
VS
51k
CT
DS
0.47µF
LTC1153
STATUS
G
GND
SD
*RL3006-50-100-25-PT0 KEYSTONE
+
100µF
5V
30k
MTD3055E
*PTC
THERMISTOR
(100°C)
12V
LOAD
LTC1153 • TA03
4.75V TO 5.25V
IN
VS
5V
51k
CT
DS
0.22µF
LTC1153
STATUS
G
GND
SD
SWITCH IS SHUTDOWN WHEN VS > 5.7V
+
10µF
100Ω
5.6V
IRLD024
5V
LOAD
LTC1153 • TA05
24V to 28V Over-Temperature Circuit Breaker
24V to 28V Over-Temperature Circuit Breaker
with Bootstrapped Supply
24V TO 28V
+
100µF
5V
51k
IN
VS
CT
DS
0.47µF
LTC1153
STATUS
G
GND
SD
*KEYSTONE RL2006-100-100-30-PT.
MOUNT ON MOSFET OR LOAD HEAT SINK.
3k
+
18V
10µF
MTP12N06
30k
5V
*PTC
THERMISTOR
(100°C)
24V TO 28V
LOAD
LTC1153 • TA04
24V TO 28V
+
100µF
100k
+
IN
VS
18V
10µF 6.2k
5V
51k
CT
DS
0.47µF
LTC1153
1N4148
STATUS
G
MTP15N06E
30k
GND
SD
5V
*PTC
THERMISTOR
(100°C)
* KEYSTONE RL2006-100-100-30-PT.
MOUNT ON MOSFET OR LOAD HEAT SINK.
** BOOTSTRAPPING REDUCES IQ(OFF) TO 60µA, IQ(ON) = 1mA.
24V TO 28V
LOAD
LTC1153 • TA06
11
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