Overview
The L5983 is a DC DC Converter made by STMicroelectronics in a VFQFPN-8L(4x4) package with 9 pins. -40℃~+150℃ 1 1.5A 2.4mA 2.9V~18V 250kHz~1MHz Adjustable Buck Buck Built-in No VFQFPN-8L(4x4) DC-DC Converters ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:L5985TR, from EasyEDA) and its footprint (EasyEDA_Cloud:DFN-8_L4.0-W4.0-P0.80-BL-EP, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C472523).
Symbol
Footprint
Parameters
12- Features
- Overcurrent Protection, Frequency synchronization, Hiccup current limiting, External compensation
- Frequency - Switching
- 250kHz~1MHz
- Function
- Step-down type
- Number of Outputs
- 1
- Operating Temperature
- -40℃~+150℃
- Output Current
- 1.5A
- Output Type
- Adjustable
- Quiescent Current
- 2.4mA
- Switch tube (built-in/external)
- Built-in
- Synchronous Rectifier
- No
- Topology
- Buck
- Voltage - Supply
- 2.9V~18V
Order codes
1- L5983TRLCSC C472523
Pinout
9| Pin | Name | Type |
|---|---|---|
| 1 | OUT | Unspecified |
| 2 | SYNCH | Unspecified |
| 3 | INH | Unspecified |
| 4 | COMP | Unspecified |
| 5 | FB | Unspecified |
| 6 | FSW | Unspecified |
| 7 | GND | Unspecified |
| 8 | VCC | Unspecified |
| 9 | EP | Unspecified |
Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/st/L5983" title="L5983 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/st/L5983.jpg" alt="L5983" width="1200" height="900">[](https://pcbkit.io/parts/st/L5983)Questions
Is there a KiCad symbol and footprint for the L5983?
Yes. The symbol is EasyEDA_Cloud:L5985TR and the footprint EasyEDA_Cloud:DFN-8_L4.0-W4.0-P0.80-BL-EP, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the L5983?
VFQFPN-8L(4x4), with 9 pins. Its footprint is drawn on this page.
Where is the L5983 datasheet?
STMicroelectronics publishes it: the Datasheet link on this page opens it.
Where can I order the L5983?
JLCPCB lists it as part C472523, with 0 in stock; the sellers' links on this page open their listings.
What can replace the L5983?
Parts like it in the library: the ST1S30IPUR by STMicroelectronics and the NCP3064MNTX by onsemi. Check their datasheets: a part that fits the footprint may still differ in its ratings.
