EUP2561 查看數據表（PDF） - Eutech Microelectronics Inc

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EUP2561

26V Step-Up Converters for Two to Six White LEDs

Eutech Microelectronics Inc 

PC Board Layout

Due to fast switching waveforms and high-current

paths, careful PC board layout is required. An evalua-

tion kit is available to speed design.

When laying out a board, minimize trace lengths

between the IC and RSENSE, the inductor, the diode, the

input capacitor, and the output capacitor. Keep traces

short, direct, and wide. Keep noisy traces, such as the

LX node trace, away from CS. The IN bypass

capacitor (CIN) should be placed as close to the IC as

possible. PGND and GND should be connected

directly to the exposed paddle underneath the IC. The

ground connections of CIN and COUT should be as close

together as possible. The traces from IN to the inductor

and from the Schottky diode to the LEDs may be

longer.

EUP2561

DS2561 Ver1.0 Dec. 2006

8

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