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MPQ8632 Datasheet(PDF) 32 Page - Monolithic Power Systems

Part # MPQ8632
Description  High Efficiency 18V Synchronous Step-down Converter Family for 4A to 20A
PDF  47 Pages
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Manufacturer  MPS [Monolithic Power Systems]
Direct Link  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MPQ8632 Datasheet(HTML) 32 Page - Monolithic Power Systems

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MPQ8632 HIGH EFFICIENCY 18V SYNCHRONOUS STEP-DOWN CONVERTER FAMILY FOR 4A TO 20A
MPQ8632 Rev.1.26
www.MonolithicPower.com
32
6/7/2017
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2017 MPS. All Rights Reserved.
IN
FREQ
VCC
EN
PGND
BST
FB
SW
MPQ8632
VIN
C1A
R7
C5
C3
L1
R4
C4
R1
R2
R6
PG
AGND
SS
C6
33nF
10uF
C1B
10uF
C1C
0.1uF
C1D
0.1uF
220K
R5
100K
1uF
100K
R3
0
1uH, TOKO FDU1250C-1R0M
301K
220pF
28K
40.2K
R9
100
VOUT
C2A
47uF
C2B
47uF
C2C
47uF
C2D
0.1uF
0.1uF
C2E
0.1uF
Figure 19 — Typical Application Circuit with Low ESR Ceramic Capacitor
MPQ8632-10, VIN=12V, VOUT=1V, IOUT=10A, FSW=800kHz
OUTPUT CURRENT (A)
Efficiency vs. Output Current
@800kHz, VOUT=1V
30
40
50
60
70
80
90
100
0.01
0.1
1
10
VIN=8V
VIN=12V
Figure 20 — Efficiency Curve
MPQ8632-10, VOUT=1V, IOUT=0.01A-10A, FSW=800kHz
IN
FREQ
VCC
EN
PGND
BST
FB
SW
MPQ8632
VIN
C1A
R7
C5
C3
L1
R4
C4
R1
R2
R6
PG
AGND
SS
C6
33nF
10uF
C1B
10uF
C1C
0.1uF
C1D
0.1uF
475K
R5
100K
1uF
100K
R3
0
1uH, TOKO FDU1250C-1R0M
330K
330pF
12.7K
40.2K
R9
100
VOUT
C2A
47uF
C2B
47uF
C2C
47uF
C2D
0.1uF
0.1uF
C2E
0.1uF
Figure 21 — Typical Application Circuit with Low ESR Ceramic Capacitor
MPQ8632-10, VIN=12V, VOUT=0.8V, IOUT=10A, FSW=300kHz



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