RT8020 查看數據表（PDF） - Richtek Technology
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RT8020 Datasheet PDF : 14 Pages
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RT8020
Typical Application Circuit
L2
2.2uH
VIN2
RT8020
1 VIN2
EN2 12
CIN2
4.7uF
2 LX2
3, Exposed Pad (13) GND
R12
4 FB1
NC2 11
FB2 10
GND 9
5 NC1
8
LX1
C11
22pF
R11
850k
6 EN1
VIN1 7
VOUT1
L1
2.2uH
COUT1
4.7uF
( ) VOUTx
=
VREF
×
1+
Rx1
Rx2
COUT2
4.7uF
R21
850k
VOUT2
C21
22pF
CIN1
4.7uF
VIN1
R22
Figure 1. Adjustable Voltage Regulator
L2
2.2uH
VIN2
RT8020
1 VIN2
EN2 12
CIN2
4.7uF
2 LX2
3, Exposed Pad (13) GND
4 FB1
NC2 11
FB2 10
GND 9
5 NC1
LX1 8
6 EN1
VIN1 7
VOUT1
COUT1
4.7uF
L1
2.2uH
VOUT2
COUT2
4.7uF
CIN1
4.7uF
VIN1
VOUTx = 1.2V, 1.3V, 1.8V, 2.5V or 3.3V
Figure 2. Fixed Voltage Regulator
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2
DS8020-03 August 2007
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