Datasheet

LTM8055/LTM8055-1
20
Rev C
For more information www.analog.com
3.3V
OUT
from 9V
IN
to 24V
IN
with 5A Accurate Current Limit and
Output Current Monitor
TYPICAL APPLICATIONS
Tw o LTM8055/LTM8055-1s Paralleled to Get More Output Current. The Tw o
µModules Are Synchronized and Switching 180° Out Of Phase
OUTPUT CURRENT (A)
OUTPUT VOLTAGE (V)
4.0
3.0
2.5
2.0
1.0
0.5
1.5
3.5
0
8055 TA04b
4 50 1 32 6
Output Voltage vs Output Current
I
OUTMON
Voltage vs Output Current
for Each Channel, 12V
IN
COMBINED CURRENTS OF BOTH CHANNELS (A)
V
IOUTMON
(V)
1.2
0.8
0.6
0.4
0.2
1.0
0
8055 TA05b
100 5 15
MASTER
SLAVE
V
IN
SV
IN
I
IN
GNDMODELL
LTM8055/
LTM8055-1
I
OUT
0.011Ω
V
OUT
CLKOUT
I
INMON
I
OUTMON
FB
RUN
CTL
SS
SYNC
COMP
RT
56.2k
8055 TA04a
22µF
6.3V
100µF
6.3V
V
OUT
3.3V
OUTPUT
CURRENT
MONITOR
10µF
50V
V
IN
9V TO 24V
36.5k
f
SW
= 600kHz
100k
+
V
IN
SV
IN
I
IN
GNDMODELL
LTM8055/
LTM8055-1
(MASTER)
I
OUT
0.008Ω
V
OUT
I
INMON
I
OUTMON
FB
RUN
CTL
SS
SYNC
COMP
RT
CLKOUT
22µF
25V
68µF
25V
V
OUT
12V
10µF
50V
47pF
47pF
V
IN
7V TO 36V
36.5k
V
IN
SV
IN
I
IN
GND
LTM8055/
LTM8055-1
(SLAVE)
I
OUT
0.008Ω
V
OUT
CTL
CLKOUT
I
INMON
I
OUTMON
FB
RUN
COMP
SS
SYNC
RT
11k
100k
9.31k
8055 TA05a
10µF
50V
36.5k
f
SW
= 600kHz
MODELL
100k
+
22µF
25V
68µF
25V
+
–
+
LT1636
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