MCP1603-ADJISLASHOS datasheet(16/26 Pages) MICROCHIP

부품명	MCP1603-ADJI/OS

상세설명	2.0 MHz, 500 mA Synchronous Buck Regulator

PDF	26 Pages

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제조업체	MICROCHIP [Microchip Technology]

홈페이지	http://www.microchip.com

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16 / 26 page

MCP1603

DS22042A-page 16

5.8

PCB Layout Information

Good printed circuit board layout techniques are

important to any switching circuitry and switching

power supplies are no different. When wiring the high

current paths, short and wide traces should be used.

This high current path is shown with red connections in

Figure 5-1. The current in this path is switching.

Therefore, it is important that the components along the

high current path should be placed as close as possible

to the MCP1603 to minimize the loop area.

The feedback resistors and feedback signal should be

routed away from the switching node and this 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:

PCB High Current Path.

VIN

SHDN

GND

VFB

VIN

2.7V To 4.5V

VOUT

1.8V @ 500 mA

COUT

4.7 µF

CIN

4.7 µF

4.7 µH

MCP1603-ADJI/OS 데이터시트(PDF) 16 Page - Microchip Technology