LINER DC1138A-A Ltc3557euf usb pwr mgr with li-ion charger Datasheet

4
3
JP1
OFF
JP2
SOFT-START
ON
C2
0.068uF
50V
0805
FB
9
J1
TP1
D+
3
TP2
ID 4
GND 5
USB Mini-B
TP3
DD+
ID
C7
10uF
0603
6.3V
R25
1.0
5%
*
U1
24
VBUS
27
CLPROG
R6
2.1k
3
E5
PROG
R7
2.0k
E6
1
JP5
OFF
E9
JP6
OFF
E10
VOUT
EN1
MODE
PULSE-SKIP
JP8
E12
VNTC
BAT
22
LDO3V3
4
VIN1
6
VIN2
16
5
SW2
ON
C9
2.2uF
6.3V
0402
L2
TP5
FB2
EN3
EN3
SW3
ON
VNTC
E21
E22
GND
R20
100k
L3
4.7uH
1098AS-4R7M
R23
20
TP6
13
17
LDO3V3
3.3V
25mA
VOUT1
3.3V
600mA
C13
10uF
0603
6.3V
R14
1.02M R15
324k
BAT
GND
ENTC
3
E23 ____
RST2
R16
232k
E24
C15
10uF
0603
6.3V
R17
464k
E25
GND
L4
4.7uH
1098AS-4R7M
R22
20
TP7
R18
806k
12
VOUT2
1.2V
400mA
2
E26
C16
10pF
FB3
1
2
3
14
MODE
R8
100k
OPT
J2
DF3-3P-2DSA
C18
100uF
6.3V
OSCON B6
0
R21
20
7
EN2
ON
18
R24
C11
1.0uF
6.3V
0402
C10
2.2uF
6.3V
0402
3.3uH
1098AS-3R3M
15
*
BAT
E20
C14
10pF
8
E18 _____
CHRG
E19
EN2
MODE
GND
EN1
19
OFF
E11
21
RST2
BURST
JP7
GATE
R13
510
C12
10pF
1
11
EN3
28
FB1
10
EN2
CHRG
E17
Q2
Si2333DS
ILIM1
ILIM1
9
EN1
VOUT
23
SW1
ILIM0
GND
0
VOUT
2.9V - 5.5V
1.2A
R19
649k
C17
10uF
0603
6.3V
VOUT3
1.8V
400mA
E27
GND
29
JP4
E16
1
1
2
E8
2
ILIM0 VBUS
NTC
0
E7
VOUT
+
20
PROG
ILIM1
Q1
Si2333DS
D2
CHRG
C8
10uF
0603
6.3V
LTC3557EUF-X
E4
JP3
4
E15
GND
1
C6
10uF
0603
6.3V
E3
ILIM0
R26
1.0
5%
R5
10.2k
7
GND
CLPROG
TP4
C19
22pF
25V
5V ADAPTER
4.5V - 5.5V
C5
10uF
0603
6.3V
C4
10uF
6.3V
0603
2
2
E14
R4
20
2
1
D-
5V ADAPTER
3
VBUS
HV BUCK
R3
49.9k
25
VBUS
4.35V - 5.5V
RT
R2
20k
1%
5
26
E2
1%
SHDN
GND
L1
6.8uH
VLCF5020T-6R8
D1
MBRM140
ACPR
VBUS
6
2
3
4
R12
806k
SW
C3
0.1uF
10V
WALL
SHDN
1
VC
RUN
4
BOOST
JP10
3
D4
BZT52C16T
VIN
VC
R1
150k
3
1
D3
CMDSH-4E
8
_____
SHDN
C1
1uF
50V
GND
HVIN
8V - 36V
2
U2
LT3505EDD
E1
E13
NTC
1
R9
R10
JP9
NTC
R11
100k
0
INT
EXT
0
CONTROLLED INPUT CURRENT LIMIT
*
ASSY
U1
BAT
ILIM1
ILIM0
IBUS(LIM)
0
0
100mA (1X)
-A
LTC3557EUF
4.2V
0
1
1A (10X)
-B
LTC3557EUF-1
4.1V
1
0
SUSPEND
1
1
500mA (5X)
4
3
CUSTOMER NOTICE
CONTRACT NO.
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
APPROVALS
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
2
DRAWN:
TECHNOLOGY
B. Shaffer
CHECKED:
TITLE:
B. Shaffer
DESIGNER:
SCHEMATIC
LTC3557EUF USB PWR MGR with Li-Ion CHARGER and
3 STEP-DOWN REGULATORS + LT3505EDD
APPROVED:
ENGINEER:
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
SIZE
A
DATE:
DWG NO.
REV
DC1138A-A/B
Wednesday, March 12, 2008
B
SHEET
1
1
OF 1
1
Similar pages