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MCP1640 Datasheet(PDF) 17 Page - Microchip Technology

Part # MCP1640
Description  0.65V START-UP SYNCHRONOUS BOOST REGULATOR WITH TRUE OUTPUT DISCONNECT OR INPUT/OUTPUT BYPASS OPTION
PDF  32 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP1640 Datasheet(HTML) 17 Page - Microchip Technology

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 2011 Microchip Technology Inc.
DS22234B-page 17
MCP1640/B/C/D
The feedback resistors and feedback signal should be
routed away from the switching node and the switching
current loop. When possible, ground planes and traces
should be used to help shield the feedback signal and
minimize noise and magnetic interference.
FIGURE 5-1:
MCP1640/B/C/D SOT23-6 Recommended Layout.
FIGURE 5-2:
MCP1640/B/C/D DFN-8 Recommended Layout.
COUT
L
CIN
+VIN
GND
GND
+VOUT
Via to GND Plane
MCP1640
Via for Enable
RTOP
RBOT
1
COUT
L
CIN
+VIN
GND
+VOUT
MCP1640
Enable
RTOP
RBOT
GND
Wired on Bottom
Plane
1



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