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RT8070 Datasheet(PDF) 2 Page - Richtek Technology Corporation

Part # RT8070
Description  4A, 2MHz, Synchronous Step-Down Converter
PDF  12 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT8070 Datasheet(HTML) 2 Page - Richtek Technology Corporation

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RT8070
2
DS8070-07
November 2012
www.richtek.com
©
Copyright
2012 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
Typical Application Circuit
Table 1. Recommended Components Selection for fSW = 1MHz
VOUT (V)
R1 (k
Ω)
R2 (k
Ω)
RCOMP (kΩ)
CCOMP (pF)
L (
μH)
COUT (μF)
3.3
75
24
33
560
2
22
2.5
51
24
22
560
2
22
1.8
30
24
15
560
1.5
22
1.5
21
24
13
560
1.5
22
1.2
12
24
11
560
1.5
22
1
6
24
8.2
560
1.5
22
VIN
RT8070
VIN
2.7V to 5.5V
RT
LX
COMP
FB
GND
ROSC
L
COUT
RCOMP
VOUT
CIN
10µF
CCOMP
R1
R2
SS
CSS
10nF
Chip Enable
R3
100k
PGOOD
PGOOD
EN
5
7
1
9 (Exposed Pad)
2
3
6
8
4
Pin Configurations
(TOP VIEW)
SOP-8 (Exposed Pad)
COMP
SS
EN
VIN
PGOOD
FB
LX
RT
GND
2
3
4
5
6
7
8
9
COMP
SS
VIN
PGOOD
FB
RT
LX
EN
7
6
5
1
2
3
4
8
9
WDFN-8L 3x3



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