4 layers75 × 69.2 mm
L6981C33DR
STMicroelectronicsExtended
-40℃~+150℃@(TJ) 1 1.5A 20uA 3.3V 3.5V~38V 400kHz Buck Built-in Fixed Overcurrent Protection、Light load efficient mode、Cycle-by-cycle current limiting、Frequency synchronization、Built-in LDO regulator Step-down type Yes SO-8 DC-DC Converters ROHS
- Part id
- st/L6981C33DR
- Category
- DC DC Converters
- Package
- SO-8
- Pins
- 8
- In stock
- 1 at JLCPCB (C5268096)
- Used on
- 1 open-source board
Overview
The L6981C33DR is a DC DC Converter made by STMicroelectronics in a SO-8 package with 8 pins. -40℃~+150℃@(TJ) 1 1.5A 20uA 3.3V 3.5V~38V 400kHz Buck Built-in Fixed Overcurrent Protection、Light load efficient mode、Cycle-by-cycle current limiting、Frequency synchronization、Built-in LDO regulator Step-down type Yes SO-8 DC-DC Converters ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:L6982N33DR, from EasyEDA) and its footprint (Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. 1 are in stock at JLCPCB (part C5268096). 1 open-source board in 1 repository on GitHub use it.
Symbol
Footprint
Pinout
8| Pin | Name | Type |
|---|---|---|
| 1 | SW | Unspecified |
| 2 | BOOT | Unspecified |
| 3 | VCC | Unspecified |
| 4 | VOUT/FB | Unspecified |
| 5 | EN/CLKIN | Unspecified |
| 6 | AGND | Unspecified |
| 7 | VIN | Unspecified |
| 8 | PGND | Unspecified |
Open-source boards using it
1Parts like it
8
XL1509-3.3
SOP-8-40℃~+125℃@(TJ) 1 150kHz 2A 2mA 3.3V 4.5V~40V Buck Buck Built-in Fixed No SOP-8 DC-DC Converters ROHSUMWDC-DC ConvertersXL1509-3.3E1
SOP-8-40℃~+85℃ 1 150kHz 2A 2mA 3.3V 4.5V~40V Buck Buck Built-in Fixed No SOP-8 DC-DC Converters ROHSXLSEMIDC-DC ConvertersLM2594HVM-3.3(UMW)
SOP-8-25℃~+85℃ 1 1.5A 150kHz 2mA 3.3V 4.5V~40V Buck Buck Built-in Fixed No SOP-8 DC-DC Converters ROHSUMWDC-DC ConvertersTPS5403D
SOIC-8-40℃~+85℃@(TA) 1 1.1MHz 1.7A 100uA 3.3V 4.5V~28V Buck Buck Built-in Fixed No SOIC-8 DC-DC Converters ROHSTexas InstrumentsDC-DC ConvertersLM2576D-3.3RG
SOP-8L-40℃~+125℃@(TJ) 1 3.3V 3A 52kHz 5mA 6V~40V Buck Buck Built-in Fixed No SOP-8L DC-DC Converters ROHSHANSCHIP semiconductorDC-DC ConvertersLM2594M-3.3(UMW)
SOP-8-20℃~+85℃ 1 1.5A 150kHz 2mA 3.3V 4.5V~40V Buck Buck Built-in Fixed No SOP-8 DC-DC Converters ROHSUMWDC-DC ConvertersAP1509-33SG
SOP-8L-40℃~+125℃ 1 150kHz 2A 3.3V 4.5V~22V 5mA Buck Buck Built-in Fixed No SOP-8L DC-DC Converters ROHSDiodes IncorporatedDC-DC ConvertersAP1509-SG
SOIC-8-150mil-40℃~+125℃ 1 150kHz 150uA 2A 3.3V 4.5V~22V Buck Buck Built-in Fixed No SOIC-8-150mil DC-DC Converters ROHSDiodes IncorporatedDC-DC Converters
Questions
Is there a KiCad symbol and footprint for the L6981C33DR?
Yes. The symbol is EasyEDA_Cloud:L6982N33DR and the footprint Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the L6981C33DR?
SO-8, with 8 pins. Its footprint is drawn on this page.
Where is the L6981C33DR datasheet?
STMicroelectronics publishes it: the Datasheet link on this page opens it.
Where can I order the L6981C33DR?
JLCPCB lists it as part C5268096, with 1 in stock; the sellers' links on this page open their listings.
What can replace the L6981C33DR?
Parts like it in the library: the XL1509-3.3 by UMW, the XL1509-3.3E1 by XLSEMI, the LM2594HVM-3.3(UMW) by UMW and the TPS5403D by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the L6981C33DR?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.