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PM6681A Datasheet(PDF) 5 Page - STMicroelectronics

Part # PM6681A
Description  Dual synchronous step-down controller with adjustable LDO
PDF  47 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

PM6681A Datasheet(HTML) 5 Page - STMicroelectronics

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PM6681A
Pin settings
5/47
2
Pin settings
2.1
Connections
Figure 2.
Pin connection (top view)
2.2
Functions
COMP2
FB2
32
31
30
29
28
27
26
25
1
2
3
4
5
6
7
8
24
23
22
21
20
19
18
17
9
10
11
12
13
14
15
16
P
PM
M6
66
68
81
1A
A
SKIP
BOOT1
HGATE1
PHASE1
CSENSE1
VIN
V5SW
LDO5
SGND
SHDN
EN2
FSEL
OUT2
LDO
Table 2.
Pin functions
N°
Pin
Function
1SGND
Signal ground. Reference for internal logic circuitry. It must be connected to
the signal ground plan of the power supply. The signal ground plan and the
power ground plan must be connected together in one point near the PGND
pin.
2
COMP2
DC voltage error compensation pin for the switching section 2
3
FSEL
Frequency selection pin. It provides a selectable switching frequency,
allowing three different values of switching frequencies for the switching
sections.



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