ST1PS03AQTR
- Mfr.Part #
- ST1PS03AQTR
- Manufacturer
- STMicroelectronics
- Package / Case
- TQFN-12
- Datasheet
- Download
- Description
- 400 MA NANO-QUIESCENT SYNCHRONOU
- Stock
- 2,536
- In Stock :
- 2,536
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- Manufacturer :
- STMicroelectronics
- Product Category :
- Voltage Regulators - DC DC Switching Regulators
- Output Type :
- Selectable
- Voltage - Output (Max) :
- 3.3V
- Topology :
- Buck
- Package / Case :
- TQFN-12
- Series :
- ST1PS03
- Quiescent Current :
- 500 nA
- Input Voltage :
- 1.8 V to 5.5 V
- Voltage - Input (Min) :
- 1.8V
- Frequency - Switching :
- -
- Voltage - Output (Min/Fixed) :
- 1.6V
- Output Voltage :
- 1.6 V to 3.3 V
- Maximum Input Voltage :
- 5.5 V
- Packaging :
- MouseReel
- Switching Frequency :
- 2 MHz
- Voltage - Input (Max) :
- 5.5V
- Shutdown :
- Shutdown
- Package :
- Tape and Reel (TR);Cut Tape (CT);Digi-Reel®;
- Package Type :
- 12-UFQFN
- Mounting Style :
- SMD/SMT
- Operating Supply Current :
- 10 nA
- Maximum Operating Temperature :
- + 125 C
- Synchronous Rectifier :
- yes
- Output Configuration :
- Positive
- Operating Temperature :
- -40°C ~ 125°C (TJ)
- Supplier Device Package :
- 12-TQFN (1.7x2)
- RoHS :
- Details
- Mounting Type :
- Surface Mount
- Minimum Operating Temperature :
- - 40 C
- Number of Outputs :
- 1 Output
- Output Current :
- 400 mA
- Maximum Output Voltage :
- 3.3 V
- Product Status :
- Active
- MSL :
- MSL 1 - Unlimited
- Efficiency :
- 92 %
- Current - Output :
- 400mA
- Function :
- Step-Down
- Type :
- Step-Down Converter
- Pin Count :
- 12
- Datasheets
- ST1PS03AQTR

Voltage Regulators - DC DC Switching Regulators STMicroelectronics ST1PS03AQTR Overview
The ST1PS03AQTR by STMicroelectronics is a standout model within the realm of Voltage Regulators - DC DC Switching Regulators, designed for high efficiency and ultra-low power consumption. This synchronous step-down converter operates with a supply voltage range suitable for battery-powered applications. It's uniquely engineered to provide a stable output while maintaining a quiescent current of only 400 µA, making it ideal for extending battery life in portable devices. Its small package design and enhanced power efficiency cater to a broad range of applications, ensuring reliability and superior performance where power efficiency is crucial.
ST1PS03AQTR Features
The ST1PS03AQTR boasts several key features that make it highly effective for a variety of power management tasks. These include a wide input voltage range that allows it to operate with common battery voltages, high efficiency at low load conditions, and a compact package that minimizes the footprint on PCBs. Additionally, the device includes built-in protection features such as over-temperature protection and short-circuit protection, enhancing its reliability in complex electronic systems.
ST1PS03AQTR Applications
- Wearable Devices: Ideal for powering smart watches, fitness trackers, and other wearable tech, the ST1PS03AQTR helps extend battery life through its low quiescent current and high efficiency.
- Portable Medical Equipment: Used in devices like portable glucose monitors and blood pressure meters, this regulator ensures reliable operation even with fluctuating battery levels.
- Wireless Sensors: Suitable for IoT devices, where long battery life is essential. The ST1PS03AQTR can efficiently manage power in small, battery-operated sensors that communicate wirelessly.
- Smart Home Devices: Powers various smart home devices, including remote controls and small home automation modules, providing consistent performance with minimal power waste.
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