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2008 Microchip Technology Inc.
DS21949C-page 5
TC1303A/TC1303B/TC1303C/TC1304
Typical Application Circuits
10-Lead DFN
1
2
6
8
7
9
10
5
4
3
SHDN2
VIN2
VOUT2
AGND
PGND
LX
VIN1
SHDN1
VOUT1
PG
4.7 μF
Processor
RESET
Input
Voltage
4.7 μH
4.7 ΜF
2.1V @
1 ΜF
3.3V @
4.5V to 5.5V
Adjustable-Output Application
121 k
200 k
4.99 k
33 pF
1
2
6
8
7
9
10
5
4
3
SHDN2
VIN2
VOUT2
AGND
PGND
LX
VIN1
SHDN1
VOUT1
PG
4.7 μF
Processor
RESET
4.7 μH
4.7 μF
1.5V @ 500 mA
1 μF
2.5V @ 300 mA
2.7V to 4.2V
TC1303B
VOUT1
VOUT2
VIN
VOUT1
VOUT2
1.0 μF
*Optional
Capacitor
VIN2
300 mA
500 mA
Note: Connect DFN package exposed pad to AGND.
10-Lead MSOP
Fixed-Output Application
TC1303A
(Note)
RPULLUP
1
2
6
8
7
9
10
5
4
3
SHDN
VIN2
VOUT2
AGND
PGND
LX
VIN1
VOUT1
PG
4.7 μF
Processor
RESET
4.7 μH
4.7 ΜF
1.2V @ 500 mA
1 μF
2.5V @ 300 mA
2.7V to 4.2V
VOUT1
VOUT2
VIN
10-Lead MSOP
Fixed-Output Application
TC1304
RPULLUP
AGND
EP
11