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MIC7401 Datasheet(PDF) 40 Page - Micrel Semiconductor

Part # MIC7401
Description  Configurable PMIC, Five-Channel Buck Regulator plus One-Boost with HyperLight Load짰, I2C Control, and Enable
PDF  68 Pages
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Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC7401 Datasheet(HTML) 40 Page - Micrel Semiconductor

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Micrel, Inc.
MIC7401
March 16, 2015
40
Revision 1.0
Proper Termination of Unused Pins
Many designs will not require all six DC-to-DC output
voltages. In these cases, the unused pin must be
connected to either VIN or GND.
The schematic in Figure 21 shows where to tie the unused
pins
and
Table
4
summarizes
the
connections.
Figure 21. Connections for Unused Pins
Table 4. Summarization of Unused Pin Connections
Unused
VIN
PGND
Boost
PVIN6, PGIN6O, VOUT6
PGND6, SW6
Buck
PVIN[x], VOUT[x]
PGND[6], SW[x]
POR
POR
SW4
OUT4
MIC7401
C1
2.2µF
PVIN1
L4
1.0µH
PGND4
C14
22µF
PVIN4
C13
10µF
SW3
OUT3
L3
2.2µH
PGND3
C12
22µF
PVIN3
C11
10µF
SW2
OUT2
L2
2.2µH
PGND2
C10
22µF
PVIN2
26
C9
10µF
SW1
OUT1
PGND1
PVIN6
PVIN6O
SW6
PGND6
PVIN5
L5
2.2µH
SW5
OUT5
PGND5
C8
22µF
C7
10µF
R1
100k
Ω
OUT6
R6
499k
Ω
27
29
28
25
24
23
22
21
20
19
17
18
2
1
3
36
4
5
7
6
8
9
11
10
R5
2k
Ω
R3
2k
Ω
CLK
SDA
NC
4
3
2
VIN
VIN
VIN
VIN
VIN
VIN
VOUT5
1.25V/1.0A
VOUT4
1.05V/2.5A
VOUT3
1.8V/0.5A
VOUT2
1.1V/0.5A
R7
0
Ω
PGND
GND
1
VIN
PGND
PGND
PGND
R4
100k
Ω
VIN
EN
VIN
STAND-BY
STAND-BY
POR
PG
EN
TP14
VIN
PG
EN
VIN
VOUT3
VIN
PGND
C15
150µF
+



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