ST1PS03A1QTR
ActiveDC-DC SYNCHRONOUS BUCK REGULATOR, ADJUSTABLE, 1.8 TO 5.5V IN, 1.6 TO 3.3V/0.4A OUT, TQFN-12, 125 °C
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ST1PS03A1QTR
ActiveDC-DC SYNCHRONOUS BUCK REGULATOR, ADJUSTABLE, 1.8 TO 5.5V IN, 1.6 TO 3.3V/0.4A OUT, TQFN-12, 125 °C
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Technical Specifications
Parameters and characteristics for this part
| Specification | ST1PS03A1QTR |
|---|---|
| Current - Output | 400 mA |
| Function | Step-Down |
| Mounting Type | Surface Mount |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 125 ¯C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Type | Selectable |
| Package / Case | 12-UFQFN |
| Supplier Device Package | 12-TQFN (1.7x2) |
| Synchronous Rectifier | True |
| Topology | Buck |
| Voltage - Input (Max) [Max] | 5.5 V |
| Voltage - Input (Min) [Min] | 1.8 V |
| Voltage - Output (Max) [Max] | 3.3 V |
| Voltage - Output (Min/Fixed) | 1.6 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 1.87 | |
| 10 | $ 1.68 | |||
| 25 | $ 1.59 | |||
| 100 | $ 1.35 | |||
| 250 | $ 1.27 | |||
| 500 | $ 1.11 | |||
| 1000 | $ 0.92 | |||
| Digi-Reel® | 1 | $ 1.87 | ||
| 10 | $ 1.68 | |||
| 25 | $ 1.59 | |||
| 100 | $ 1.35 | |||
| 250 | $ 1.27 | |||
| 500 | $ 1.11 | |||
| 1000 | $ 0.92 | |||
| Tape & Reel (TR) | 3000 | $ 0.87 | ||
Description
General part information
ST1PS03 Series
ST1PS03A1QTR is a nano-quiescent miniaturized synchronous step-down converter, which is able to provide upto 400mA output current with an input voltage ranging from 1.8V to 5.5V. This converter is specifically designed for applications where high efficiency, PCB size, and thickness are the key factors. The output voltage can be set using three digital control inputs, a VOUT from 1.6V to 3.3V can be dynamically selected. Thanks to the enhanced PCC (peak current control) this device reaches very high-efficiency conversion using just a 2.2µH inductor and two small capacitors. An advanced design circuitry is developed to minimize the quiescent current. It is used in applications such as wearable applications, personal tracking monitors, smart watches, sports bands, energy harvesting, wireless sensors, wearable and fitness accessories, industrial sensors, portable low-power devices, single-cell Li-Ion battery applications, Bluetooth® low energy, zigbee.
Documents
Technical documentation and resources