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Part Name
Description
LTC3577 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
LTC3577
Highly Integrated 6-Channel Portable PMIC
Linear Technology
'LTC3577' PDF : 54 Pages
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OPERATION
LTC3577/LTC3577-1
HV
IN
7.5V TO 30V
(TRANSIENTS
TO 60V)
1
V
IN
4.7μF
60V
7
BOOST
8
SW
LT3653
324k
4 I
LIM
9
GND
I
SENSE
6
5
V
OUT
V
C
HVOK
32
HIGH VOLTAGE
BUCK CIRCUITRY
0.1μF
10V
4.7μH
DFLS240L
UP TO
1.2A
42 4 41
V
C
WALL
ACPR
V
OUT
39
LTC3577 IDGATE
37
BAT
38
V
OUT
C
OUT
Si2333DS
(OPT)
+
BAT
Li-Ion
3577 F05
Figure 5. LT3653 Buck Control Using V
C
5.0
4.5
4.0
3.5
3.0
2.5
2.5
I
O
= 0.0A
I
O
= 0.75A
I
O
= 1.5A
BAT
3
3.5
4
4.5
BAT (V)
3577 F06
Figure 6. V
OUT
Voltage vs Battery Voltage (LT3480)
5.0
4.5
4.0
3.5
3.0
2.5
2.5
I
O
= 0.0A
I
O
= 0.6A
BAT
3
3.5
4
4.5
BAT (V)
3577 F07
Figure 7. V
OUT
Voltage vs Battery Voltage (LT3505)
3577f
23
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