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RT9991 Datasheet(PDF) 2 Page - Richtek Technology Corporation

Part # RT9991
Description  Power Management IC for SSD
PDF  14 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9991 Datasheet(HTML) 2 Page - Richtek Technology Corporation

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RT9991
2
DS9991-01 April 2011
www.richtek.com
Function Block Diagram
Typical Application Circuit
Buck
Converter 1
LX1
VIN1
Buck
Converter 2
LX2
VIN2
Buck
Converter 3
LX3
VIN3
FB1
FB2
FB3
RESET
0.7V
GND
VDET
EN1
EN2
EN3
+
-
RT9991
LX1
VOUT1
1.2V/1A
16, 17
R1
R2
L1
2.2µH
10µF
30k
64.9k
C2
FB1
13
VIN1
VIN
15, 20
C1
GND
1, 18, 19, 22, 23, 32,
33 (Exposed Pad)
LX2
VOUT2
1.8V/1A
24, 25
R3
R4
L2
2.2µH
10µF
80k
64.9k
C3
FB2
28
LX3
VOUT3
3.3V/3A
2, 3, 4
R5
R6
L3
1µH
10µF x 2
200k
64.9k
C4
FB3
8
VIN2
21, 26
VIN3
5, 6
5V
VDET
11
RESET
10
VDD
3.3V
43k
R7
R8
R9
EN1
14
EN2
27
EN3
7
Chip Enable



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