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STMICROELECTRONICS ST1PS02AQTR Low Power Buck Converter
The ST1PS02 is an ultra-low quiescent current synchronous buck converter designed for compact, high-efficiency power regulation in portable, wearable, and low power systems. It features digital voltage selection from 1.0 V to 3.3 V, including dynamic voltage scaling, and supports up to 400 mA output current. The device operates with an input voltage range of 1.8 V to 5.5 V, embedding a soft-start circuit, load switch, and Power Good indicator. Thanks to its hysteretic control, it seamlessly switches between PFM and PWM modes, ensuring minimal ripple, high efficiency, and excellent transient response, ideal for energy harvesting, IoT, and wearable applications.
STMICROELECTRONICS ST1PS02AQTR Low Power Buck Converter Specifications:
- Input Voltage Range: 1.8 V to 5.5 V
- Output Voltage Range: 1.0 V to 3.3 V, dynamically selectable via digital pins
- Maximum Output Current: 400 mA
- Quiescent Current: 500 nA (not switching at Vout=3.6 V, Iload=0)
- Efficiency: Up to 92% at 10 mA load, typical 100% duty cycle at high input voltages
- Dropout Voltage: Dependent on load and input voltage
- Switching Frequency: Up to 2 MHz under heavy load
- Package Type: TQFN12 (2.0 x 1.7 mm, 0.55 mm height)
- Embedded Soft-start and Load Discharge Circuit
- Power Good Indicator: Open-drain output for status monitoring
- Operating Temperature: -40°C to +85°C
- UVLO Threshold: 1.63 V (typical)
- Settable Current Limit: 280 mA during soft-start, adjustable via resistor
- Low ESR Ceramic Capacitors recommended for input/output filtering
Buy the STMicroelectronics Series ST1PS02 Buck Converter: 1.0V-3.3V, 400mA
Purchase the STMicroelectronics ST1PS02 buck converter online today and experience high efficiency power management in compact size. Designed for low power portable devices, energy harvesting, and wearable technology, this converter supports input voltages from 1.8 V to 5.5 V with a maximum output current of 400 mA. Features include digital voltage setting, soft-start, Power Good indicator, and seamless transition between PFM and PWM modes. Ideal for designers seeking reliable, energy-efficient solutions in small, space-constrained applications.
Get STMicroelectronics ST1PS02 today—built for ultra-low power applications and high efficiency in miniature form factor.
Frequently Asked Questions
Where can I buy STMICROELECTRONICS ST1PS02AQTR?
You can click on the BUY or RFQ button to purchase ST1PS02AQTR from an authorized STMICROELECTRONICS distributor.
How do I troubleshoot issues or seek technical support for part ST1PS02AQTR?
You can download the ST1PS02AQTR datasheet or visit the STMICROELECTRONICS website for support.
Who is the manufacturer of ST1PS02AQTR?
STMICROELECTRONICS