DC2343A - Schematic

1
2
3
4
5
6
7
8
REVISION HISTORY
ECO
L1 100uH
E1
8
VBAT
1.8V - 5.5V
C1
22uF
1206
6.3V
20%
GND
EN
1
E2
ON
EXT
OFF
R9
EN
GND
2
3
16
PBAT
PVOUT
BAT
VOUT
E3
VOUT *
12
C2
150uF
1210
6.3V
20%
E4
PGOOD
E8
18
E9
1k
OUT2
E7
2
DVCC
OUT2
OUT1
OUT0
C3
1000pF
OUT1
1
1
0
0
0
JP3
JP4
J3
3
4
5
2
0
SDA
IPK2
IPK1
IPK0
IRQ
GNDD
19
SCL
6
PGND
1
SCL
GND
NC
VSUPPLY
1
B
20
DVcc
PGOOD
1
R1 DNP
0603
R3
0603
0
R5
0603
6
15
14
13
8
10
DNP
R2
0603
0
R4
0603
DNP
R6
0603
12
21
E10
VBAT
OUT0
4
GNDA
B
R7
10k
5%
17
R8
10k
5%
A
3.3V
15mA
GND
EN
E6
GND
06 - 30 - 15
11
JP2
DVCC
DATE
BJS
4
E5
JP1
7
APPROVED
PRODUCTION
VOUT
VOUT
SW2
9
VBAT
SW1
VBAT
DESCRIPTION
LPS5030-104MRB
LTC3335EUDC
A
2
10
U1
REV
-
PGOOD
VBAT
EHORBAT
I/O 1
V+
GND
KEY
RSVD
I/O 2
+5V
3
5
7
9
11
DUST HEADER 2X6
SDA
SMH-106-02-L-D-05
PGOOD
IRQ
C
C
IPEAK SELECTION
INSTALL
*OUTPUT VOLTAGE SELECTION
D
OUT2 OUT1 OUT0 VOUT
0
0
0
1.8V
0
0
1
2.5V
0
1
0
2.8V
0
1
1
3.0V
1
0
0
3.3V
1
0
1
3.6V
1
1
0
4.5V
1
1
1
5.0V
D
IPK2
R2
R2
R2
R2
R1
R1
R1
R1
IPK1 IPK0
R6
R4
R5
R4
R6
R3
R3
R5
R4
R6
R4
R5
R3
R6
R3
R5
IPEAK
5mA
10mA
15mA
25mA
50mA
100mA
150mA
250mA
L1
2200uH
1000uH
680uH
470uH
220uH
100uH
68uH
47uH
D = DEFAULT VALUE
CUSTOMER NOTICE
APPROVALS
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
PCB DES.
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
APP ENG.
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
D
NOTES: UNLESS OTHERWISE SPECIFIED
1. RESISTORS: OHMS, 0402, 1%, 1/16W
2. CAPACITORS: 0402, 10%, 50V
1
2
3
4
TECHNOLOGY
NC
BJS
TITLE: SCHEMATIC
SIZE
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
IC NO.
N/A
SCALE = NONE
6
DATE:
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
NANOPOWER BUCK-BOOST DC/DC WITH
INTEGRATED COULOMB COUNTER
REV.
LTC3335EUDC
2
DEMO CIRCUIT 2343A
06 - 30 - 15
SHEET
7
8
1
OF
2
D
B
C5
10uF
6.3V
20%
0603
C4
10uF
6.3V
20%
0603
R10
1.0
5% C4 only used in
non-isolated
case
D+
DGND
A11
A10
A9
A8
1
A7
4
3
2
A2
A1
5
A5
11
10
9
8
7
6
GND
GND
GND
GND
GND
GND
ID
R12
0
OPT
R15
301
0603
C7*
301 Ohms
0603
A4
A3
VCC
VCC
VCC
VCC
VCC2
VCC2
VCC2
VCC2
VBUS
VLO2
D1+
D1-
D2+
D2-
14
L11
L10
L9
L8
L2
L1
16
15
ON
1
SPND-PWR
GND2
GND2
GND2
GND2
GND2
GND2
GND2
GND2
GND2
GND2
GND2
GND2
GND2
GND2
GND2
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
L3
L4
L6
L7
K1
K2
K3
K4
K5
K6
K7
K8
K9
K10
K11
RA4
RA5
VUSB3V3
RB7
RB6
RB5
RB4
RC7
RC6
RC5
RC4
RC3
RC2
RA0/D+/ICSPDAT2
RA1/D-/ICSPCLK2
RA3/MCLR/Vpp
Vss
PIC16F1459-I/ML
470pF
1808
250VAC
R14
0
RC0/ICSPDAT
RC1/ICSPCLK
EPAD
17
1A
20
19
2A
7
8
9
10
3A
6
5
2
3
4
11
13
12
ORNG
LED
D1
GRN
LED
D2
2.00k
R20
2.00k
R21
R25
3
DP2 SP2
R26 0603
28.7k
GP2
DN1
0603
2
GN1
M1
Si1553CDL
470pF
1808
R27
OPT
R28
28.7k
3
DP2 SP2
10k
0603
IRQ
6C
3
R18
4
R24
5
6
49.9k
C11
1uF
25V
VBAT
100
0603
0603
GP2
DN1
GN1
M2
Si1553CDL
0603
5%
R19
4
R23
5
6
49.9k
C12
1uF
25V
VOUT
100
0603
0603
1
R17
10M
INSTALL DC2343A-1-ASSY1 ONTO
JP5 ROWs A AND B
NOTES: UNLESS OTHERWISE SPECIFIED
1. RESISTORS: OHMS, 0402, 1%, 1/16W
2. CAPACITORS: 0402, 10%, 50V
CUSTOMER NOTICE
6 5
INSTALL OPTIONS:
** DC2343A-1-ASSY1
- ON BOARD PROCESSOR OPERATION:
- JP5 ROW B CONNECTS TO JP5 ROW C
- DUST or OTHER PROCESSOR CONNECTION:
- JP5 ROW A CONNECTS TO JP5 ROW B
- DVCC CONNECTS TO I/O SUPPLY
- SIGNALS TO/FROM LTC3335 CONNECT TO JP5-CX
APPROVALS
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
PCB DES.
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
APP ENG.
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
BJS
TITLE: SCHEMATIC
SIZE
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
B
TECHNOLOGY
NC
12 11
TSW-106-07-L-T
A
5C
6B
2
250VAC
4 3
10 9
PGOOD
5%
10k
ICD INTERFACE
WURTH-62000621121
A
8 7
4C
5A
6A
2
4
6
DC2343A-1-ASSY1
1
SDA
5B
2
2 1
SCL
3C
4A
0603
B
2C
4B
J2
C10 OPT
DVcc
3B
21
1
3
5
1C
2B
5%
VCC
OPT C9
**
JP5
TSW-106-07-L-T
18
Vdd
R16
10k
5%
VLO
4
1B
C8
0.47uF
16V
L5
LTM2884CY
2
R22
DNP
0603
U2
3
A6
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
C6
0.1uF
OPT
U3
J1
USB Micro B RECEPTACLE
1981568-1
VBUS
OPT
R13
0
VCC
VCC
R11
0
E
SN1
4
Close
to
J1.1
D
1
Isolation Bypass
Components: 2512 for
5mm clearance
VCCin
C
SN1
A
C
IC NO.
N/A
SCALE = NONE
D
DATE:
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
NANOPOWER BUCK-BOOST DC/DC WITH
INTEGRATED COULOMB COUNTER
REV.
GUI INTERFACE
DEMO CIRCUIT 2343A
06 - 30 - 15
2
SHEET
E
2
OF
2
1
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