Datasheet
LTC4085-3/LTC4085-4
24
408534fb
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear.com
© LINEAR TECHNOLOGY CORPORATION 2011
LT 0512 REV B • PRINTED IN USA
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TYPICAL APPLICATION
PART NUMBER DESCRIPTION COMMENTS
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Package
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USB Power Control Application with Wall Adapter Input
IN
SUSP
HPWR
SUSPEND USB POWER
500mA/100mA SELECT
OUT
PROG
LTC4085-3/
LTC4085-4
CLPROG
GND
BAT
GATE
V
NTC
NTC
Li-Ion
CELL
TO LDOs
REGs, ETC
CHRG
ACPR
WALL
TIMER
0.15µF
408534 TA02
R
NTCBIAS
10k
R
NTC
10k
510
R
PROG
71.5k
*SERIES 1 RESISTOR ONLY
NEEDED FOR INDUCTIVE
INPUT SUPPLIES
R
CLPROG
2.1k
+
4.7µF
4.7µF
5101k
5V WALL
ADAPTER
INPUT
5V (NOM)
FROM USB
CABLE V
BUS
1*
4.7µF
1*