C1608JB0J475M 데이터 시트보기 (PDF) - Richtek Technology
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C1608JB0J475M Datasheet PDF : 13 Pages
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RT8024
Typical Application Circuit
VIN
2.2V to 5.5V
CIN
4.7µF
4 VIN
L
2.2µH
LX 3
RT8024
1 EN VOUT 5
GND
2
VOUT
COUT
10µF
Figure 1. Fixed Voltage Regulator
VOUT = VREF x ⎜⎛1 + R1 ⎟⎞
⎝ R2 ⎠
VIN
2.2V to 5.5V
L
4 VIN
2.2µH
LX 3
CIN
4.7µF
RT8024
C1
R1
1 EN
FB 5
GND
2
IR2
R2
VOUT
COUT
10µF
with R2 = 300kΩ to 60kΩ so the IR2 = 2μA to 10μA,
and (R1 x C1) should be in the range between 3x10-6 and 6x10-6 for component selection.
Figure 2. Adjustable Voltage Regulator
Layout Guide
VIN
GND
CIN
COUT
VIN 4 3 LX
VOUT
L
VIN
GND
CIN
COUT
VIN 4 3 LX
VOUT
L
VOUT 5
2 GND
1 EN
GND
C1
FB 5
R1 R2
VOUT
2 GND
1 EN
GND
Figure 3
Layout note:
1. The distance that CIN connects to VIN is as close as possible (Under 2mm).
2. COUT should be placed near RT8024.
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2
DS8024-02 March 2011
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