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MPQ4570 Datasheet(PDF) 13 Page - Monolithic Power Systems

Part # MPQ4570
Description  3A, 4.5V-55V Input, Frequency Programmable, Fully Integrated Synchronous, Step-Down Converter AEC-Q100 Qualified
PDF  22 Pages
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Manufacturer  MPS [Monolithic Power Systems]
Direct Link  http://www.monolithicpower.com
Logo MPS - Monolithic Power Systems

MPQ4570 Datasheet(HTML) 13 Page - Monolithic Power Systems

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MPQ4570
– 3A, 55V, SYNCHRONOUS STEP DOWN CONVERTER
MPQ4570 Rev. 1.05
www.MonolithicPower.com
13
4/22/2019
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2019 MPS. All Rights Reserved.
FUNCTIONAL BLOCK DIAGRAM
ISW
1V
SS_Internal
SS_Internal
SS
400mV
PLL
CLK
FB Fsw Foldback
FREQ Setting
PLL Fsw Setting
PLL ON
COMP Fsw Foldback
115%REF
90%REF
FB
OC
ZC
CLK
ZC
SW LOW
RB
CPB
LS
DMOS
Q
HS
DMOS
HS Current
Limit COMP
SW
VIN
BST
CLK
LS DRVL LOW
NO OC
PGND
PG
FB
COMP
FREQ
Internal
Regulator
(2.5V)
VDD
Regulator
(3.6V or 4.8V)
Voltage
Reference
Current
Reference
Thermal
Shutdown
VIN UVLO
BIAS
2V
CLK
VDD
ISW
EN
Figure 1
— Functional Block Diagram



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