RT8020EPQW データシートの表示（PDF） - Richtek Technology
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RT8020EPQW Datasheet PDF : 14 Pages
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RT8020E
Typical Application Circuit
L2
4.7µH
VIN2
RT8020E
1 VIN2
EN2 12
CIN2
4.7µF
2 LX2
3, 13 (Exposed Pad) GND
4 FB1
NC2 11
FB2 10
GND 9
5 NC1
8
LX1
6 EN1
VIN1 7
VOUT1
1.2V
COUT1
10µF
L1
4.7µH
VOUT2
1.8V
COUT2
10µF
CIN1
4.7µF
VIN1
Functional Pin Description
Pin No.
1
Pin Name
VIN2
Power Input of Channel 2.
Pin Function
2
LX2
3, 9,
GND
13 (Exposed Pad)
Pin for Switching of Channel 2.
Ground. The exposed pad must be soldered to a large PCB and connected to
GND for maximum power dissipation.
4
5, 11
6
7
FB1
NC1, NC2
EN1
VIN1
Feedback of Channel 1.
No Internal Connection or Connect to VIN.
Chip Enable of Channel 1 (Active High). VEN1 ≦ VIN1.
Power Input of Channel 1.
8
LX1
10
FB2
12
EN2
Pin for Switching of Channel 1.
Feedback of Channel 2.
Chip Enable of Channel 2 (Active High). VEN2 ≦ VIN2.
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2
DS8020E-02 March 2011
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