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| MPQ8632-4 Datasheet, PDF (32/46 Pages) Monolithic Power Systems – High Efficiency 18V Synchronous Step-down Converter Family for 4A to 20A | |||
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MPQ8632 HIGH EFFICIENCY 18V SYNCHRONOUS STEP-DOWN CONVERTER FAMILY FOR 4A TO 20A
Figure 22 â Efficiency Curve
MPQ8632-10, VOUT=0.8V, IOUT=0.01A-10A, FSW=300kHz
VIN
C1A C1B C1C C1D
IN
R7
10uF 10uF 0.1uF 0.1uF R5
287K
100K
FREQ
R3
BST
0
C3
0.1uF L1
1uH, TOKO FDU1250C-1R0M
SW
VOUT
R4
C4
R1
C2A C2B C2C C2D C2E
EN MPQ8632
FB
VCC
C5
R6
SS
330K
220pF
R9
100
12.7K 47uF 47uF 47uF 0.1uF 0.1uF
R2
1uF 100K
PG
C6
33nF
40.2K
PGND AGND
Figure 23 â Typical Application Circuit with Low ESR Ceramic Capacitor
MPQ8632-10, VIN=12V, VOUT=0.8V, IOUT=10A, FSW=500kHz
Figure 24 â Efficiency Curve
MPQ8632-10, VOUT=0.8V, IOUT=0.01A-10A, FSW=500kHz
MPQ8632 Rev.1.24
www.MonolithicPower.com
32
8/28/2013
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2013 MPS. All Rights Reserved.
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