STMicroelectronics12-UFQFNRoHS
ST1PS03AQTR
400 MA NANO-QUIESCENT SYNCHRONOU
Category
Subcategory
Pmic Voltage Regulators Dc Dc Switching Regulators
Package
12-UFQFN
Status
Active
$1.81 / unit (market reference)
MOQ: 1 pcs
Submit your quantity via the inquiry form for a competitive quote within 24 hours.
Parameters
| Parameter | Value |
|---|---|
| Brand | STMicroelectronics |
| Model | ST1PS03AQTR |
| Package / Case | 12-UFQFN |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Topology | Buck |
| Voltage - Input (Min) | 1.8V |
| Voltage - Input (Max) | 5.5V |
| Voltage - Output | 1.6V |
| Current - Output | 400mA |
| Number of Outputs | 1 |
| Supplier Device Package | 12-TQFN (1.7x2) |
| RoHS | RoHS |
| Part Status | Active |
Application & Notes
ST1PS03AQTR by STMicroelectronics is a Buck IC commonly used in power supply designs, battery-powered devices, and DC-DC conversion modules. Input voltage up to 5.5V, output 1.6V. The 12-UFQFN package with surface mount mounting is standard for compact designs. Pay attention to input/output capacitor selection and PCB layout — switching regulators are sensitive to trace inductance.
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All Technical Specifications
| Function | Step-Down |
| Topology | Buck |
| Output Type | Selectable |
| Current - Output | 400mA |
| Number of Outputs | 1 |
| Output Configuration | Positive |
| Synchronous Rectifier | Yes |
| Voltage - Input (Max) | 5.5V |
| Voltage - Input (Min) | 1.8V |
| Voltage - Output (Max) | 3.3V |
| Voltage - Output (Min/Fixed) | 1.6V |
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