LTC3554 LINER [Linear Technology], LTC3554 Datasheet - Page 13
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LTC3554
Manufacturer Part Number
LTC3554
Description
Micropower USB Power Manager with Li-Ion Charger and Two Step-Down Regulators
Manufacturer
LINER [Linear Technology]
Datasheet
1.LTC3554.pdf
(36 pages)
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BLOCK DIAGRAM
PWR_ON1
PWR_ON2
PBSTAT
HPWR
CHRG
SUSP
STBY
V
FSEL
NTC
BUS
ON
20
19
15
14
10
1
2
9
8
3
5
OSCILLATOR
1.125MHz
MONITOR
2.25MHz/
BATTERY
TEMP
CHARGE
STATUS
EXTPWR
PUSH BUTTON
INTERFACE
CURRENT
INPUT
UVLO
LIMIT
CHARGER
CC/CV
GND
21
OSC
EN
STBY
OSC
EN
STBY
0.8V
0.8V
200mA STEP-DOWN DC/DC
200mA STEP-DOWN DC/DC
COMPARATORS
POWER GOOD
3554 BD1
18
17
16
13
12
11
6
7
4
LTC3554
V
BAT
PROG
SW1
FB1
BVIN
SW2
FB2
PGOOD
OUT
13
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