ISL8200AMMREP datasheet(19/24 Pages) RENESAS

19 / 24 page

ISL8200AMM

FN8287 Rev 2.00

Page 19 of 24

June 3, 2015

The recommended layout considerations for operating multiple

modules in parallel follows the single-phase guidelines as well as

these additional points:

•Orient VOUT towards the load on the same layer and connect

with thick direct copper etch directly to minimize the loss.

• Place modules such that pins 1-11 point away from power

pads (PD1-4) so that signal busses (EN, ISHARE,

CLKOUT-to-FSYNCIN) can be routed without going under the

module. Run them along the perimeter as in Figure 36.

• Keep remote sensing traces separate, and connect only at the

regulation point. Four separate traces for VSEN_REM- and

RFBT (which stands for remote feedback) as in the example in

Figure 36.

VOUT

CEN

CPVCC

CIN

COUT

RFBT

Load GND

FIGURE 35. RECOMMENDED LAYOUT FOR SINGLE PHASE SETUP

VOUT

PGND

PVIN

TO VOUT

CEN

CPVCC

CIN

COUT

RFBT

TO LOAD GND

CLKOUT to FSYNC_IN

ISHARE

TO VOUT

CEN

CPVCC

CIN

COUT

RFBT

TO LOAD GND

FIGURE 36. RECOMMENDED LAYOUT FOR DUAL PHASE SETUP

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