LP8543SQX

Texas Instruments

-40℃~+85℃ 3% 5.5V~22V 60mA 625kHz~1.25MHz 7 Analog、PWM Boost Built-in DC-DC Over Voltage Protection、Over-Temperature Protection (OTP)、Short-Circuit Protection WQFN-24-EP(4x4) LED Drivers ROHS

Extended

Datasheetti/LP8543SQX

Category: LED Drivers
Package: WQFN-24-EP(4x4)
Pins: 25

Overview

The LP8543SQX is a LED Driver made by Texas Instruments in a WQFN-24-EP(4x4) package with 25 pins. -40℃~+85℃ 3% 5.5V~22V 60mA 625kHz~1.25MHz 7 Analog、PWM Boost Built-in DC-DC Over Voltage Protection、Over-Temperature Protection (OTP)、Short-Circuit Protection WQFN-24-EP(4x4) LED Drivers ROHS.

PCBKit's library has its footprint (EasyEDA_Cloud:WQFN-24_L4.0-W4.0-P0.50-BL-EP2.5, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C2679290).

Symbol

The library has no symbol for this part yet.

Footprint

EasyEDA_Cloud:WQFN-24_L4.0-W4.0-P0.50-BL-EP2.5From EasyEDA

Parameters

Constant Current Accuracy: 3%
Dimming: PWM；Analog
Features: Over Voltage Protection；LED open-circuit protection；Over-Temperature Protection (OTP)；Short Circuit Protection
Frequency - Switching: 625kHz~1.25MHz
Number of Channels: 7
Operating temperature: -40℃~+85℃
Output Current: 60mA
Switch Tube (Built-In/External): Built-in
Topology: Boost
Type: DC-DC
Voltage - Input(DC): 5.5V~22V

Order codes

LP8543SQX/NOPBLCSC C2679290

Show this part on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/parts/ti/LP8543SQX" title="LP8543SQX in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/parts/ti/LP8543SQX.jpg" alt="LP8543SQX" width="1200" height="900">

A picture that opens the part, for a README

[![LP8543SQX](https://pcbkit.io/embed/parts/ti/LP8543SQX.jpg?size=s)](https://pcbkit.io/parts/ti/LP8543SQX)

Questions

Is there a KiCad symbol and footprint for the LP8543SQX?

Yes. the footprint EasyEDA_Cloud:WQFN-24_L4.0-W4.0-P0.50-BL-EP2.5, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the LP8543SQX?

WQFN-24-EP(4x4), with 25 pins. Its footprint is drawn on this page.

Where is the LP8543SQX datasheet?

Texas Instruments publishes it: the Datasheet link on this page opens it.

Where can I order the LP8543SQX?

JLCPCB lists it as part C2679290, with 0 in stock; the sellers' links on this page open their listings.

What can replace the LP8543SQX?

Parts like it in the library: the LM3549SQE by Texas Instruments, the LM3549SQX by Texas Instruments, the LM27965SQ/NOPB by Texas Instruments and the LP8545SQ by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.