LT3754 datasheet(18/24 Pages) LINER

Part #	LT3754

Description	60V Triple Step-Down LED Driver Programmable Temperature Protection

PDF	24 Pages

Scroll/Zoom	100%

Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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18 / 24 page

LT3597

3597f

Board Layout

As with all switching regulators, careful attention must be

paid to the PCB board layout and component placement.

To prevent electromagnetic interference (EMI) problems,

proper layout of high frequency switching paths is essen-

tial. Minimize the length and area of all traces connected

to the switching node pin (SW). Always use a ground

plane under the switching regulator to minimize inter-

plane coupling. Good grounding is essential in LED fault

detection.

Propergroundingisalsoessentialfortheexternalresistors

andresistordividersthatsetcriticaloperationparameters.

Both the LT3597 exposed pad and pin 18 are ground.

Resistors connected between ground and the CTRL1-3,

CTRLM, FB1-3, TSET, ISET1-3, RT and EN/UVLO pins are

best tied to pin 18 and not the ground plane.

APPLICATIONS INFORMATION

LT3754 Datasheet(PDF) 18 Page - Linear Technology