ACT4527 datasheet(8/13 Pages) ACTIVE-SEMI

Numer części	ACT4527

Szczegółowy opis	40V/3.0A CV/CC Buck Converter Featuring USB-PD

PDF	13 Pages

Scroll/Zoom	100%

Producent	ACTIVE-SEMI [Active-Semi, Inc]

Strona internetowa	http://www.active-semi.com

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8 / 13 page

ACT4527

Rev 1, December 28

th, 2015

Innovative Power

- 8 -

www.active-semi.com

-Semi, Inc.

APPLICATIONS INFORMATION

PC Board Layout Guidance

When laying out the printed circuit board, the

following checklist should be used to ensure proper

operation of the IC.

1) Arrange the power components to reduce the

AC loop size consisting of CIN, VIN pin, SW pin

and the Schottky diode.

2) Place input decoupling ceramic capacitor CIN as

close to VIN pin as possible. CIN is connected

power GND with vias or short and wide path.

3) Use

“

”

“

-wire

”

from the sense resistor pads directly to the CSP

and CSN pins.

4) Use copper plane and thermal vias for GND for

best heat dissipation and noise immunity.

5) Use short trace connecting HSB-CHSB-SW loop.

6) SW pad is noise node switching from VIN to

GND. It should be isolated away from the rest

of circuit for good EMI and low noise operation.

ACT4527 Arkusz danych(PDF) 8 Page - Active-Semi, Inc