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LTC3554EPD Datasheet(PDF) 34 Page - Linear Technology

Part # LTC3554EPD
Description  Micropower USB Power Manager with Li-Ion Charger and Two Step-Down Regulators
PDF  36 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC3554EPD Datasheet(HTML) 34 Page - Linear Technology

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LTC3554
34
3554f
TYPICAL APPLICATION
VBUS
NTC
PROG
HPWR
SUSP
PWR_ON1
FSEL
STBY
PGOOD
PWR_ON2
PBSTAT
ON
VOUT
CHRG
BAT
BVIN
SW1
FB1
SW2
FB2
GND
3 CELL
ALKALINE
OR LITHIUM
C1
10μF
20
U1
U2
16
1
19
9
2
10
4
8
3
5
PB1
7
11
6
13
12
17
18
14
15
RPROG
1.87k
C3
10pF
C4
10μF
C2
2.2μF
RUP1
1M
RUP2
590k
RLO1
464k
2.5V
L1 10μH
C5
10pF
R4
100k
R2
100k
R3
100k
C6
10μF
RLO2
464k
1.8V
L2
10μH
SYSTEM LOAD
4.35V TO 5.5V
USB INPUT
LTC3554
I/O
CORE
PBSTAT
PGOOD
STBY
FSEL
EN
SUSP
HPWR
3554 F15
μC
+
Figure 15. 3-Cell Alkaline/Lithium with PowerPath (Charger Disabled)



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