Datasheet

LTC4417
28
4417f
Typical applicaTions
Selecting from USB, FireWire, and Li-Ion Battery Power Sources
VS1
V1 V
OUT
VALID1
VALID2
VALID3
4.35V TO 5.25V
USB
C
IN1
10µF
8V TO 30V
FireWire
IEEE1394
UV1
OV1
R3
309k
R10
1M
USB INVALID
FireWire INVALID
Li_Ion INVALID
R11
1M
R12
1M
R2
24.9k
R1
75k
R6
576k
R5
78.7k
R4
20.5k
R9
931k
R8
63.4k
R7
137k
V2
UV2
OV2
V3 EN
SHDN
HYS
CAS
UV3
OV3
4417 TA05
G1 VS2 VS3G2
GND
LTC4417
G3
V
OUT
FDS4685 FDS4685
M5 M6
FDS4685 FDS4685
M3 M4
FDS4685 FDS4685
M1 M2
7.4V Li-Ion
BATTERY
+
C
IN2
22µF
C
L
47µF
C
VS3
0.1µF
C
VS2
1µF
C
VS1
0.1µF
R
S
1k
D
S
BAT54
C
S
6.8nF
C
V3
0.1µF
C
V2
0.1µF
C
V1
0.1µF