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STMICROELECTRONICS ST1PS01EJR Low Power Buck Converter
The ST1PS01 is a compact, ultra-low quiescent current buck converter designed for efficient power management in wearable, portable, and sensor applications. It features digital voltage selection from 1.8V to 3.3V, seamless transition between PFM and PWM modes for high efficiency, and a small Flip-Chip package measuring 1.14x1.44 mm. Ideal for energy harvesting, wireless sensors, and low-power electronics, it includes an embedded soft-start circuit, Power Good indicator, and supports up to 400 mA output current at an input voltage range of 1.8V to 5.5V.
STMICROELECTRONICS ST1PS01EJR Low Power Buck Converter Specifications:
- Input Voltage Range: 1.8 V to 5.5 V
- Output Voltage: 1.8 V to 3.3 V, adjustable via digital pins
- Output Current Capability: Up to 400 mA
- Quiescent Current: 500 nA typical at Vin=3.6V
- Efficiency: 94% at 1 mA load
- Package: Flip-Chip 8 (1.14x1.44 mm)
- Inductor: 2.2 μH typical
- Output Voltage Accuracy: ±1.5% at 25°C
- Start-up Delay: 0.5–4 ms
- Undervoltage Lockout Threshold: 1.57 V
- Power Good Output: Open drain, active high at proper regulation
- Operating Temperature: -40°C to 85°C
- Switching Frequency: Up to 2 MHz in PWM mode
- Special Features: Seamless mode transition, soft-start circuit, low ESR output capacitor
- Application Areas: Wearable electronics, energy harvesting, wireless sensors, portable low power devices
Buy the STMicroelectronics Series ST1PS01 Buck Converter: 400mA Digital Low Power Step-Down
Discover the STMicroelectronics series ST1PS01 low quiescent current buck converter, engineered for high efficiency in energy harvesting, wearables, and portable electronics. With adjustable output voltage from 1.8V to 3.3V, it ensures reliable power regulation even at microampere loads. Its compact Flip-Chip package measures only 1.14 by 1.44 mm, making it perfect for space-constrained designs. Featuring seamless PWM/PFM modes, soft-start, Power Good indicator, and a broad input range, this converter guarantees low power consumption and optimal performance for your most demanding projects.
Get STMicroelectronics ST1PS01EJR today—built for precision and long-lasting durability, ideal for portable and wearable power solutions.
Frequently Asked Questions
Where can I buy STMICROELECTRONICS ST1PS01EJR?
You can click on the BUY or RFQ button to purchase ST1PS01EJR from an authorized STMICROELECTRONICS distributor.
How do I troubleshoot issues or seek technical support for part ST1PS01EJR?
You can download the ST1PS01EJR datasheet or visit the STMICROELECTRONICS website for support.
Who is the manufacturer of ST1PS01EJR?
STMICROELECTRONICS