Overview
The ST1PS02DQ is a DC DC Converter made by STMicroelectronics in a TQFN-12(1.7x2) package with 12 pins. -40℃~+85℃ 1 1.8V~5.5V 1V~1.35V 400mA 500nA Adjustable Buck Buck Built-in Yes TQFN-12(1.7x2) DC-DC Converters ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:ST1PS02CQTR, from EasyEDA) and its footprint (EasyEDA_Cloud:QFN-12_L2.0-W1.7-P0.40-BL, from EasyEDA), ready for a KiCad board. 7 are in stock at JLCPCB (part C3187881).
Symbol
Footprint
Parameters
12- Features
- Adjustable current limiting
- Function
- Step-down type
- Number of Outputs
- 1
- Operating Temperature
- -40℃~+85℃
- Output Current
- 400mA
- Output Type
- Adjustable
- Output Voltage
- 1V~1.35V
- Quiescent Current
- 500nA
- Switch tube (built-in/external)
- Built-in
- Synchronous Rectifier
- Yes
- Topology
- Buck
- Voltage - Supply
- 1.8V~5.5V
Order codes
1- ST1PS02DQTRLCSC C3187881
Pinout
12| Pin | Name | Type |
|---|---|---|
| 1 | AUX | Unspecified |
| 2 | VIN | Unspecified |
| 3 | SW | Unspecified |
| 4 | GND | Unspecified |
| 5 | VOUT | Unspecified |
| 6 | Vout2 | Unspecified |
| 7 | PGOOD | Unspecified |
| 8 | CL | Unspecified |
| 9 | D0 | Unspecified |
| 10 | D1 | Unspecified |
| 11 | D2 | Unspecified |
| 12 | EN | Unspecified |
Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/st/ST1PS02DQ" title="ST1PS02DQ 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/ST1PS02DQ.jpg" alt="ST1PS02DQ" width="1200" height="900">[](https://pcbkit.io/parts/st/ST1PS02DQ)Questions
Is there a KiCad symbol and footprint for the ST1PS02DQ?
Yes. The symbol is EasyEDA_Cloud:ST1PS02CQTR and the footprint EasyEDA_Cloud:QFN-12_L2.0-W1.7-P0.40-BL, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the ST1PS02DQ?
TQFN-12(1.7x2), with 12 pins. Its footprint is drawn on this page.
Where is the ST1PS02DQ datasheet?
STMicroelectronics publishes it: the Datasheet link on this page opens it.
Where can I order the ST1PS02DQ?
JLCPCB lists it as part C3187881, with 7 in stock; the sellers' links on this page open their listings.
What can replace the ST1PS02DQ?
Parts like it in the library: the ST1PS02A1Q by STMicroelectronics, the ST1PS02AQ by STMicroelectronics, the ST1PS02B1Q by STMicroelectronics and the ST1PS03A1Q by STMicroelectronics. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Parts like it
8
ST1PS02A1Q
TQFN-12(1.7x2)-40℃~+85℃@(TA) 1 1.8V~5.5V 1V~3.3V 2MHz 400mA 500nA Adjustable Buck Buck Built-in Yes TQFN-12(1.7x2) DC-DC Converters ROHSSTMicroelectronicsDC-DC ConvertersST1PS02AQ
TQFN-12(1.7x2)-40℃~+85℃@(TA) 1 1.4V~1.75V 1.8V~5.5V 2MHz 400mA 500nA Adjustable Buck Buck Built-in Yes TQFN-12(1.7x2) DC-DC Converters ROHSSTMicroelectronicsDC-DC ConvertersST1PS02B1Q
TQFN-12(1.7x2)-40℃~+85℃ 1 1.8V~5.5V 1V~1.35V 400mA 500nA Adjustable Buck Buck Built-in Yes TQFN-12(1.7x2) DC-DC Converters ROHSSTMicroelectronicsDC-DC ConvertersST1PS03A1Q
TQFN-12(1.7x2)-40℃~+125℃ 1 1.6V~3.3V 1.8V~5.5V 2MHz 400mA 500nA Adjustable Buck Buck Built-in Yes TQFN-12(1.7x2) DC-DC Converters ROHSSTMicroelectronicsDC-DC ConvertersST1PS03AQ
TQFN-12(1.7x2)-40℃~+125℃ 1 1.6V~3.3V 1.8V~5.5V 2MHz 400mA 500nA Adjustable Buck Buck Built-in Yes TQFN-12(1.7x2) DC-DC Converters ROHSSTMicroelectronicsDC-DC ConvertersST1PS02BQ
TQFN-12(1.7x2)-40℃~+85℃@(TA) 1 1.8V~5.5V 1V~3.3V 400mA Adjustable Buck Buck Built-in Yes TQFN-12(1.7x2) DC-DC Converters ROHSSTMicroelectronicsDC-DC ConvertersST1PS02CQ
TQFN-12(1.7x2)-40℃~+85℃ 1 1.8V~5.5V 1V~3.3V 400mA 500nA Adjustable Buck Buck Built-in Yes TQFN-12(1.7x2) DC-DC Converters ROHSSTMicroelectronicsDC-DC ConvertersST1PS02D1Q
TQFN-12(1.7x2)-40℃~+85℃@(TA) 1 1.8V~5.5V 1V~1.35V 2MHz 400mA Adjustable Buck Buck Built-in Yes TQFN-12(1.7x2) DC-DC Converters ROHSSTMicroelectronicsDC-DC Converters