ENB

VIN

GND

D2B

ISET

D1B

ENA

D1A

D2A

Control

signals

To LEDs

To LEDs

Top Layer

Inner Layer

MicroVia

Vias to VIN

plane

Optional decoupling

capacitor

Connect to GND plane

GND

GND

12

LP5524

SNVS500C – JULY 2007 – REVISED NOVEMBER 2016

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Product Folder Links: LP5524

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Copyright © 2007–2016, Texas Instruments Incorporated

10 Layout

10.1 Layout Guidelines

The LP5524 high-side current source outputs provide a fast load transient (350 nsec typical) to the external load.

Design the PCB to provide a low resistive/inductive path to the VIN and GND pins. If the optional input capacitor

(CIN) is used, place it close to the LP5524 VIN and GND pins.

10.2 Layout Example

Figure 8. LP5524 Layout Example