
Overview
The SC4539ULTRT is a LED Driver made by SEMTECH in a DFN-8-EP(2x2) package with 9 pins. -40℃~+85℃ 1 2.8V~5.5V 3.5% 30mA 5V~22V 800kHz Analog、PWM Boost Built-in DC-DC DFN-8-EP(2x2) LED Drivers ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:SC4539ULTRT, from EasyEDA) and its footprint (EasyEDA_Cloud:MLPD-8_L2.0-W2.0-P0.50-TL-EP1.6, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C2679064).
Symbol
Footprint
Parameters
12- Constant Current Accuracy
- 3.5%
- Dimming
- PWM;Analog
- Features
- Over Voltage Protection;Built-in soft-start;Over-Temperature Protection (OTP)
- Frequency - Switching
- 800kHz
- Number of Channels
- 1
- Operating temperature
- -40℃~+85℃
- Output Current
- 30mA
- Output Voltage
- 5V~22V
- Switch Tube (Built-In/External)
- Built-in
- Topology
- Boost
- Type
- DC-DC
- Voltage - Input(DC)
- 2.8V~5.5V
Order codes
1- SC4539ULTRTLCSC C2679064
Pinout
9| Pin | Name | Type |
|---|---|---|
| 1 | LX | Unspecified |
| 2 | EN | Unspecified |
| 3 | ISET | Unspecified |
| 4 | COMP | Unspecified |
| 5 | OUT | Unspecified |
| 6 | BL | Unspecified |
| 7 | GND | Unspecified |
| 8 | IN | Unspecified |
| 9 | EP | Unspecified |
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<iframe src="https://pcbkit.io/embed/parts/semtech/SC4539ULTRT" title="SC4539ULTRT in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/semtech/SC4539ULTRT.jpg" alt="SC4539ULTRT" width="1200" height="900">[](https://pcbkit.io/parts/semtech/SC4539ULTRT)Questions
Is there a KiCad symbol and footprint for the SC4539ULTRT?
Yes. The symbol is EasyEDA_Cloud:SC4539ULTRT and the footprint EasyEDA_Cloud:MLPD-8_L2.0-W2.0-P0.50-TL-EP1.6, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the SC4539ULTRT?
DFN-8-EP(2x2), with 9 pins. Its footprint is drawn on this page.
Where can I order the SC4539ULTRT?
JLCPCB lists it as part C2679064, with 0 in stock; the sellers' links on this page open their listings.
What can replace the SC4539ULTRT?
Parts like it in the library: the SC4509WLTRT by SEMTECH. Check their datasheets: a part that fits the footprint may still differ in its ratings.