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RT5021 数据表(PDF) 18 Page - Richtek Technology Corporation

部件名 RT5021
功能描述  Channels DC/DC PMU with Li-ion Battery Charger
PDF  67 Pages
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制造商  RICHTEK [Richtek Technology Corporation]
网页  http://www.richtek.com
标志 RICHTEK - Richtek Technology Corporation

RT5021 数据表(HTML) 18 Page - Richtek Technology Corporation

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RT5021
18
DS5021-01 April 2013
www.richtek.com
Copyright
2013 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
©
Typical Application Circuit
Figure 1. Typical Application Circuit for DSC with 6-LED Backlight
Note : To make CH1 stable, C27 must be close to PVD1. To make CH4 and CH5 stable, C28 must be close to PVD45.
RT5021
25
LX2B
PVD3
32
TS
29
PVD1
LX2A
26
PVD2
27
VO2
24
FB2
23
FB3
28
GND
41 (Exposed Pad)
4
17
SYS
35, 36
38
DN 39
DP
SCL
21
14
EN
WAKE 1
22
PVD8 19
VO8
VRTC
40
6
PVD7
PVD6
VO6
10
9
2.2µH
5
FB7
VP
30
VIN
37
2
2.2µF
VBUS
BAT
33, 34
1µF
+
NTC
10µF x 2
Motor 5V
LX1
3
2.2µH
4.7µF
VSYS
10µF
VSYS
10µF x 2
22pF
300k
96k
4.7µF
VSYS
I/O 3.3V
2.2µH
10µF
Core 1V
LX3
31
232k
PVD45
15
10µF
VSYS
931k
FB4
11
2.2µH
10µF
DDRIII 1.5V
LX4
13
327k
374k
LX5
16
VO5/FB5
18
1.8V
2.2µH
VSYS
D+
D-
To USB
CHG2
VSYS
Charge 2 Indicator
8
VSYS
Charge Indicator
CHG
0.1µF
Super
Cap
VRTC
Wake Up
Signal to µP
1µF
3.3V
1µF
2.8V
Enable
12
SEQ
VSYS
SDA
20
I
2C Bus
INT
3.3V
Interrupt to µP
1µF
10
1µF
1.5V
1µF
1.3V
C14
C2
R1
R2
RNTC
C3
L1
C4
C5
L2
C6
C7
R3
R4
C8
L3
R5
R6
C9
C10
L4
R7
R8
C11
L5
10µF
C12
R11
C1
R12
C17
C18
C19
R13
1k
R14
1k
R15
C21
D2
R16
C23
C24
7
LX7
Backlight
1µF
C22
VSYS
10µH
L7
D3
D4
D5
D6
D7
10µF
10k
10k
VSYS
10k
68pF
C25
47pF
C26
0.1µF
C27
0.1µF
C28



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