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Número de pieza
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RT8023 Ver la hoja de datos (PDF) - Richtek Technology
Número de pieza
componentes Descripción
Fabricante
RT8023
1.2MHz 1.5A Synchronous Step-Down Converter with Two LDOs
Richtek Technology
RT8023 Datasheet PDF : 19 Pages
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RT8023
Pin Configurations
(TOP VIEW)
24 23 22 21 20 19
PGOOD1
1
18
FB3
VDD1
2
17
PGOOD3
VIN1
3
VIN1
4
PGND
16
EN3
15
EN2
VIN1
5
PGND
6
14
PGOOD2
25
13
FB2
7 8 9 10 11 12
WQFN-24L 4x4
Typical Application Circuit
V
IN1
C1
10µF
R1
100
C2
0.1µF
C3
1µF
3, 4, 5 2
R2
100k
11 21
PGOOD1
EN1
EN2
EN3
V
OUT1
1.2V/1.5A
L1 2.2µH
R3 100k
1
PGOOD1
24
EN1
15
EN2
16
EN3
8, 9
PHASE1
23
FB1
RT8023
PGOOD2
14
PGOOD3
17
VOUT2
12
FB2
13
VOUT3
20
FB3
18
C5
22uF
R4
200k
19 6,
Exposed Pad (25)
V
IN2
V
IN3
C4
1µF
R5 R6
100k 100k
R9 425k
PGOOD2
PGOOD3
R7 425k
V
OUT2
2.5V/0.7A
V
OUT3
2.5V/0.35A
R10
200k
C7 R8
C6
1µF
200k
1µF
Figure 1. 1.2V Output Step-Down Converter and Dual 2.5V Output Regulators
Note : Must to use ceramic X5R/X7R capacitors.
www.richtek.com
2
DS8023-03 March 2011
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