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RT8010PQW Datasheet(PDF) 2 Page - Richtek Technology Corporation

Part # RT8010PQW
Description  1.5MHz, 1A, High Efficiency PWM Step-Down DC/DC Converter
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT8010PQW Datasheet(HTML) 2 Page - Richtek Technology Corporation

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RT8010/A
2
DS8010/A-02 March 2007
www.richtek.com
Typical Application Circuit
Figure 1. Fixed Voltage Regulator
Figure 2. Adjustable Voltage Regulator
+
=
R2
R1
1
x
V
V
REF
OUT
with R2 = 300k
Ω 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 3
Layout note:
1. The distance that CIN connects to VIN is as close as possible (Under 2mm).
2. COUT should be placed near RT8010/A.
Layout Guide
4.7uF
10uF
VIN
LX
NC
RT8010/A
EN
VOUT
2.2uH
2.5V to 5.5V
VIN
VOUT
CIN
L
6
4
3
2
5
COUT
GND
1
4.7uF
10uF
VIN
LX
RT8010/A
EN
FB
2.2uH
2.5V to 5.5V
VIN
VOUT
CIN
L
6
4
3
2
COUT
R1
R2
C1
IR2
NC
5
GND
1
NC
EN
VIN
FB
GND
LX
RT8010/A_ADJ
CIN must be placed
between VDD and
GND as closer as
possible
LX should be
connected to
Inductor by wide
and short trace,
keep sensitive
compontents away
from this trace
Output
capacitor
must be near
RT8010/A
L1
COUT
CIN
1
2
3
4
5
6
R1
R2
L1
NC
EN
VIN
GND
LX
COUT
CIN
RT8010/A_FIX
CIN must be placed
between VDD and
GND as closer as
possible
LX should be connected
to Inductor by wide and
short trace, keep
sensitive compontents
away from this trace
Output capacitor
must be near
RT8010
1
2
3
4
5
6 VOUT


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