5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
RTP5903
above 80 mils
above 50 mils
above 30 mils
1.0-3.3V
1.8-3.3V
0.7-2.275V
0.7-2.275V
0.7-2.275V
1.7-3.5V
2.3~5.5V
2.3~5.5V
Output/Sequence
output
output
PWR Button
RTP5903 4-CH switching regulator
12V or 5V POWER IN
MicroUSB 5V POWER IN
12V to 5V
System Power Select
Default 1.5V
DDR Power Select
Default:DC_1V5
Reserved DDR Power Supply
BUCK_5V=0.8*(1+680/130)=4.98V
LX2
PMU_SDA
PMU_SCL
RESET#
LX4
PMU_IRQ_N
LX1
PMU_HOLD
PMU_PWREN
PMU_SLEEP
PMU_PONKEY
LX3
PMU_IRQ_N
RESET#
PMU_IRQ_N
RESET#
PMU_HOLD PMU_PWREN PMU_SLEEP
PMU_PONKEY
DC_1V0
DC_3V3
LDO1
LDO2
LDO1_IN
DC_1V0
DC_3V3
DC_1V5
DC_1V5
DC_3V3 DC_3V3
SWR_OUT_RSV
DC_1V0
SWR_OUT_RSV
DC_1V5
DC_3V3
LDO1
LDO2
DC_3V3 DC_3V3
SWR_OUT_RSV
LDO2_IN
SVIO
SVDDC
SSOR_VDDA
DC_12V BUCK_5V
DC_12V
USB_5V DC_5V
USB_5V
BUCK_5V
DC_3V3
DC_5VDC_5V
DC_5V
DC_5V
DC_5V
DC_5V
DC_5V
DC_5V
LDO_1V5
DC_1V5
LDO_1V5
DDR_1V5
BUCK_5V
BUCK_5V
I2C_SCL3,5
I2C_SDA3,5
RSTn3
WDOG_OUT 3
Modify Date
R e v
Size
Product Name
Page Name
Designer:
Semiconductor Corp.
Page
o f
Ext. Num:
Approver:
Ext.Num :
PCB Name
2 6
C
RTS3901L&RTS3902L_LQFP128_Demoboard_V0.1
1.0
Modify Date
R e v
Size
Product Name
Page Name
Designer:
Semiconductor Corp.
Page
o f
Ext. Num:
Approver:
Ext.Num :
PCB Name
2 6
C
RTS3901L&RTS3902L_LQFP128_Demoboard_V0.1
1.0
Modify Date
R e v
Size
Product Name
Page Name
Designer:
Semiconductor Corp.
Page
o f
Ext. Num:
Approver:
Ext.Num :
PCB Name
2 6
C
RTS3901L&RTS3902L_LQFP128_Demoboard_V0.1
1.0
L3 0/BEAD
1 2
R176
*1K_ADJ
F1 FUSE C2
10uF/25V
R12 *0
JP2
1
1
2
2
C25
10uF
C0805
C10
3.3nF
F2 FUSE
L8 2.2uH,DCR<0.1ohm,1.5A
IDN-4X4
J1
MicroUSB
VBUS
1
D-
2
D+
3
ID
4
GND
5
Mount
6
Mount
7
NC
8
NC
9
C152
*0.1uF
R25
NC_10K
C23
22uF
C0805
R15
10K
C20
10uF
C0805
R21 0
R13
10K
L4 0/BEAD
1 2
C21
10uF
C0805
R19
*10K
R11 0
C150
1uF
C30
10uF
C0805R10 0
R23
10K
U1
TLV62130
PVIN
11
EN
13
SW
1
DEF
8
SS/TR
9
PG
4
FB
5
FSW
7
PVIN
12
AVIN
10
PGND
16
PGND
15
SW
2
SW
3
Vos
14
AGND
6
E-PAD
17
C4
10uF/25V
L9 2.2uH,DCR<0.1ohm,3A
IDN-4X4
C15
10uF/25V
L1 2.2uH/2A
JP1
1
1
2
2
R175
1.96K_1%
R8 0
C11
10uF/25V
C33
10uF
C0805
R9 0
C6
10uF/25V
U9
AP7365(ADJ)
IN
1
GND
2
EN
3
ADJ
4
OUT
5
C22
10uF
C0805
C5
10uF/25V
J20
CON3
1
2
3
C9
0.1uF
R17 0
R1 100K
350mA
300mA
DC1
2.0A
DC3
1.2A
DC4
1.0A
DC2
2.0A
U2
RTP5903
QFN32-4X4
DC3VIN
20
DC3LX
21
DC3VOUT
23
DC3GND
22
DC4GND
31
DC4VIN
29
DC4LX
30
DC4VOUT
28
DC1VIN
13
DC1GND
10
DC1VOUT
9
DC2VOUT
5
DC2VIN
8
DC2GND
6
DC2LX
7
AVCC
26
LDO2IN
15
PONKEY
4
SCL
32
SDA
1
IRQ_N
17
PWRGD
2
DVDD
3
EPAD`
33
VREF
24
AGND
25
LDO1
27
LDO2
14
GPIO0/SLEEP
16
GPIO1/PWREN
18
PWRHOLD
19
DC1LX
11
NC
12
C26
10uF
C0805
L2 0/BEAD
1 2
+
C7
100uF
CAP7343
L6 2.2uH,DCR<0.1ohm,1.5A
IDN-4X4
C28
4.7uF
C0603
CN1
POWER1
2
3
1
C14
10uF/25V
R7 0
C32
2.2uF
C0603
R4 100K
R3 100K 1%
+
C17
100uF
CAP7343
L7 2.2uH,DCR<0.1ohm,3A
IDN-4X4
Q1
(PMOS)GSM2311A
SOT-23-3L5 0/BEAD
1 2
J2
*Output
SIP10
1
2
3
4
5
6
7
8
9
10
C3
10uF/25V
R16 0
C16
10uF/25V
C19
10uF
C0805
R24
10K
D1
*BZX585-C6V2
R6 100K
R2 680K 1%
R177 10K
C27
10uF
C0805
R14
10K
R20
*10K
C18
0.1uF/25V
S1 PWR_ON
R22 0
C35
0.1uF
C151
1uF
R18
*10K
C24
10uF
C0805
C8
10uF/25V
R5 *0
C34
0.1uF
C0402
R174
2.2K_1%
C31
2.2uF
C0603
C29
2.2uF
C0603
