6 layers150.1 × 110.1 mm
ST1S31PUR
STMicroelectronicsExtended
-40℃~+150℃@(TJ) 1 1.9MHz 2.8V~5.5V 3A 630uA 800mV~5.5V Adjustable Buck Built-in Overcurrent Protection、Light load efficient mode、Operating status indication、Cycle-by-cycle current limiting Step-down type Yes QFN-8(3x3) DC-DC Converters ROHS
- Part id
- st/ST1S31PUR
- Category
- DC DC Converters
- Package
- QFN-8(3x3)
- Pins
- 9
- In stock
- 62 at JLCPCB (C2971521)
- Used on
- 2 open-source boards
Overview
The ST1S31PUR is a DC DC Converter made by STMicroelectronics in a QFN-8(3x3) package with 9 pins. -40℃~+150℃@(TJ) 1 1.9MHz 2.8V~5.5V 3A 630uA 800mV~5.5V Adjustable Buck Built-in Overcurrent Protection、Light load efficient mode、Operating status indication、Cycle-by-cycle current limiting Step-down type Yes QFN-8(3x3) DC-DC Converters ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:ST1S31PUR, from EasyEDA) and its footprint (EasyEDA_Cloud:TDFN-8_L3.0-W3.0-P0.65-BL-EP, from EasyEDA), ready for a KiCad board. 62 are in stock at JLCPCB (part C2971521). 2 open-source boards in 2 repositories on GitHub use it.
Symbol
Footprint
Pinout
9| Pin | Name | Type |
|---|---|---|
| 1 | VINA | Unspecified |
| 2 | EN | Unspecified |
| 3 | FB | Unspecified |
| 4 | AGND | Unspecified |
| 5 | PG | Unspecified |
| 6 | VINSW | Unspecified |
| 7 | SW | Unspecified |
| 8 | PGND | Unspecified |
| 9 | EP | Unspecified |
Open-source boards using it
2- 4 layers62.3 × 94.3 mm
STM32N6 Thesis Board
tobiasbaas/Roboterarm1
Herzlich willkommen zum Repo des Robotersarmes der Arbeitsgruppe. Bitte beachtet, dass es sich hierbei handelt um eine Erweiterung bereits vorhandener Infrastruktur.
221 parts1
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Questions
Is there a KiCad symbol and footprint for the ST1S31PUR?
Yes. The symbol is EasyEDA_Cloud:ST1S31PUR and the footprint EasyEDA_Cloud:TDFN-8_L3.0-W3.0-P0.65-BL-EP, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the ST1S31PUR?
QFN-8(3x3), with 9 pins. Its footprint is drawn on this page.
Where is the ST1S31PUR datasheet?
STMicroelectronics publishes it: the Datasheet link on this page opens it.
Where can I order the ST1S31PUR?
JLCPCB lists it as part C2971521, with 62 in stock; the sellers' links on this page open their listings.
What can replace the ST1S31PUR?
Parts like it in the library: the SGM3200YTDB8G/TR by SG Micro, the MAX15032ATA+T by Maxim Integrated (Analog Devices) and the MAX1947ETA18+T by Maxim Integrated (Analog Devices). Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the ST1S31PUR?
2 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.