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RT9941 Datasheet(PDF) 2 Page - Richtek Technology Corporation

Part # RT9941
Description  Power Management ICs for Handheld Device
PDF  33 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT9941 Datasheet(HTML) 2 Page - Richtek Technology Corporation

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RT9941
2
DS9941-01 April 2011
www.richtek.com
Typical Application Circuit
Pin Configurations
(TOP VIEW)
WQFN-40L 5x5
30
29
28
27
26
25
24
23
22
21
31
32
33
34
35
36
37
38
39
40
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
DATA
BATT
BATT
FB1
PGND1
LX1
VIN1
LX2
PGND2
FB2
nCHG_S
TS
TIMER
VOUT2
VIN3
VOUT3
VOUT1
VIN2
VOUT4
GND
ISETA
41
TS
FB1
PGND1
LX1
VIN1
LX2
PGND2
FB2
HP_PWR
VOUT1
VOUT4
VIN3
VOUT5
VIN2
VOUT2
RT9941
nPBSTAS
PWR_ON
nCHG_S
TIMER
ISETA
VOUT3
BATT
GND
VBUCK1
1.8V/600mA
VBUCK2
1.2V/600mA
L2
3
27
26
25
24
23
22
21
34
17, Exposed Pad (41)
11
6
10
5
9
8
28, 29
38, 39
33
12
7
PWR_EN
S2
S1
VSYS
nRESET
20
35, 36
19
18
10µF
L1
LDO1 (S1 and S2 Control) 500mA
+
To VIN1, VIN2, VIN3
PWR_IN
+5V (Adapter / USB)
VSYS
VSYS
nINT 14
13
LBI
VSYS
4
2
16
1
4.7µF
100k
VBACK1
4.7µF
1µF
1µF
1µF
1µF
10µF
4.7µF
22µF
2k
(750mA)
0.1µF
510
VSYS
100k
VSYS
100k
nLBO 15
VSYS
100k
100k
39k
4.7µF
PWR_ID
37
PWR_HOLD
ISETU
40
32
2.2µH
200k
100k
120pF
2.2µH
100k
100k
220pF
1µF
LDO2 (S1 and S2 Control) 200mA
LDO3 80mA
LDO4 (I2C Control) 50mA
LDO5 (I2C Control) 50mA
100k
VBACK1
USB
Adapter
NTC
DATA 30
VSYS
4.7k
CLK 31
VSYS
4.7k
RSET
500mA
100mA
CTIMER
VSYS
VSYS
VSYS
RTC Alarm Wake Up
From CPU, uP



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