2 layers50 × 50 mm
Ro system
oxfordfish/STM32G0F6Px-ROC
A reverse osmosis controller system designed around STM32.
57 parts1CERN-OHL-P-2.0
Overview
The L7985ATR is a DC DC Converter made by STMicroelectronics in a SOIC-8 package with 9 pins. -40℃~+150℃@(TJ) 1 1MHz 2A 4.5V~38V 600mV~38V Adjustable Buck Buck Built-in No SOIC-8 DC-DC Converters ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:L7980TR, from EasyEDA) and its footprint (EasyEDA_Cloud:HSOP-8_L5.0-W4.0-P1.27-LS6.2-TL-EP, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C2071310). 1 open-source board in 1 repository on GitHub use it.
Symbol
Footprint
Parameters
13- Features
- External compensation；Frequency synchronization；Cycle-by-cycle current limiting；Overcurrent Protection
- Frequency - Switching
- 1MHz
- Function
- Step-down type
- Number of Outputs
- 1
- Operating Temperature
- -40℃~+150℃@(TJ)
- Output Current
- 2A
- Output Type
- Adjustable
- Output Voltage
- 600mV~38V
- Quiescent Current
- 2.4mA
- Switch tube (built-in/external)
- Built-in
- Synchronous Rectifier
- No
- Topology
- Buck
- Voltage - Supply
- 4.5V~38V
Order codes
1- L7985ATRLCSC C2071310
Pinout
9| Pin | Name | Type |
|---|---|---|
| 1 | OUT | Unspecified |
| 2 | SYNCH | Unspecified |
| 3 | EN | Unspecified |
| 4 | COMP | Unspecified |
| 5 | FB | Unspecified |
| 6 | FSW | Unspecified |
| 7 | GND | Unspecified |
| 8 | VCC | Unspecified |
| 9 | EP | Unspecified |
Open-source boards using it
All 1Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/st/L7985ATR" title="L7985ATR 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/L7985ATR.jpg" alt="L7985ATR" width="1200" height="900">[](https://pcbkit.io/parts/st/L7985ATR)Questions
Is there a KiCad symbol and footprint for the L7985ATR?
Yes. The symbol is EasyEDA_Cloud:L7980TR and the footprint EasyEDA_Cloud:HSOP-8_L5.0-W4.0-P1.27-LS6.2-TL-EP, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the L7985ATR?
SOIC-8, with 9 pins. Its footprint is drawn on this page.
Where is the L7985ATR datasheet?
STMicroelectronics publishes it: the Datasheet link on this page opens it.
Where can I order the L7985ATR?
JLCPCB lists it as part C2071310, with 0 in stock; the sellers' links on this page open their listings.
What can replace the L7985ATR?
Parts like it in the library: the L7986TATR by STMicroelectronics, the L7985A by STMicroelectronics, the B5973DTR by STMicroelectronics and the B5973D by STMicroelectronics. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the L7985ATR?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
4
L7986TATR
SOIC-8-40℃~+150℃@(TJ) 1 1MHz 3A 4.5V~38V 600mV~38V Adjustable Buck Buck Built-in No SOIC-8 DC-DC Converters ROHSSTMicroelectronicsDC-DC ConvertersL7985A
HSOP-8-EP-40℃~+150℃@(TJ) 1 1MHz 2.4mA 2A 4.5V~38V 600mV~38V Adjustable Buck Buck Built-in No HSOP-8-EP DC-DC Converters ROHSSTMicroelectronicsDC-DC ConvertersB5973DTR
SOIC-8-40℃~+150℃@(TJ) 1 1.235V~35V 250kHz 2A 4V~36V Adjustable Buck Buck Built-in No SOIC-8 DC-DC Converters ROHSSTMicroelectronicsDC-DC ConvertersB5973D
HSOP-8-EP-40℃~+150℃@(TJ) 1 1.235V~35V 250kHz 2A 4V~36V Adjustable Buck Buck Built-in No HSOP-8-EP DC-DC Converters ROHSSTMicroelectronicsDC-DC Converters