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STPMIC25APQR Datasheet(PDF) 6 Page - STMicroelectronics

Part # STPMIC25APQR
Description  Highly integrated power management IC for microprocessor units
PDF  145 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STPMIC25APQR Datasheet(HTML) 6 Page - STMicroelectronics

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Pin name
A/D (1)
I/O (1)
Locatio
n
Description (default configuration)
Not used pin
connection
VLX4
A
O
19
LX node buck converter 4
Floating
BUCK4IN
A
I
20
Power input buck converter 4
VIN
VOUT3
A
I
21
Input feedback signal buck converter 3
GND
PGND3
A
-
22
Power ground buck converter 3
GND
VLX3
A
O
23
LX node buck converter 3
Floating
BUCK3IN
A
I
24
Power input buck converter 3
VIN
BUCK2IN
A
I
25
Power input buck converter 2
VIN
VLX2
A
O
26
LX node buck converter 2
Floating
PGND2
A
-
27
Power ground buck converter 2
GND
VOUT2
A
I
28
Input feedback signal buck converter 2
GND
VIO
A
I
29
I/O voltage (for all digital signals except WAKEUP and PONKEYn)
VIO
WAKEUPn
D
I
30
Power-ON from host processor (active low with internal pull-up)
Floating
RSTn
D
I/O
31
Bidirectional reset (active low with internal pull-up)
Floating
INTn
D
O
32
Interrupt (active low with internal pull-up)
Floating
SCL
D
I
33
I²C serial clock
VIO
SDA
D
I/O
34
I²C serial data
VIO
VOUT5
A
I
35
Input feedback signal buck converter 5
GND
PGND5
A
-
36
Power ground buck converter 5
GND
VLX5
A
O
37
LX node buck converter 5
Floating
BUCK5IN
A
I
38
Power input buck converter 5
VIN
BUCK1IN
A
I
39
Power input buck converter 1
VIN
VLX1
A
O
40
LX node buck converter 1
Floating
PGND1
A
-
41
Power ground buck converter 1
GND
VOUT1
A
I
42
Input feedback signal buck converter 1
GND
LDO3IN
A
I
43
Power input LDO3
VIN
LDO3OUT
A
O
44
Output voltage LDO3
VIN
VREFDDR
A
O
45
DDR VREF output voltage
Floating
VOUT6
A
I
46
Input feedback signal buck converter 6
GND
PGND6
A
-
47
Power ground buck converter 6
GND
VLX6
A
O
48
LX node buck converter 6
Floating
BUCK6IN
A
I
49
Power input buck converter 6
VIN
BUCK7IN
A
I
50
Power input buck converter 7
VIN
VLX7
A
O
51
LX node buck converter 7
Floating
PGND7
A
-
52
Power ground buck converter 7
GND
VOUT7
A
I
53
Input feedback signal buck converter 7
GND
PWRCTRL3
D
I
54
Power control 3 mode (pull-up and pull-down, active by default pull-up)
VIO or GND
PWRCTRL2
D
I
55
Power control 2 mode (pull-up and pull-down, active by default pull-up)
VIO or GND
PWRCTRL1
D
I
56
Power control 1 mode (pull-up and pull-down, active by default pull-up)
VIO or GND
EPGND
A
-
ePad
Exposed pad to be connected to ground
GND
1. A: analog; D: digital; I/O: input/Output
STPMIC25
Typical application schematic
DS14278 - Rev 3
page 6/145



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