The ST1PS02BQTR is a highly efficient, nano-quiescent, synchronous step-down switching regulator from STMicroelectronics, designed to deliver outstanding performance in a compact package. This regulator is ideal for battery-powered applications due to its low power consumption and wide input voltage range.

Key Features

• Wide Input Voltage Range: The ST1PS02BQTR operates with an input voltage range from 1.8V to 5.5V, making it versatile for various applications, from single-cell Li-ion batteries to USB-powered devices.
• Adjustable Output Voltage: The output voltage can be adjusted from 0.5V to 5.5V, enabling a wide range of use cases and compatibility with different low-power devices and microcontrollers.
• High Efficiency: With a peak efficiency of 95%, this regulator ensures minimal energy loss during voltage conversion, extending battery life in portable applications.
• Nano-Quiescent Current: The device features an exceptionally low quiescent current of just 500nA, which significantly reduces power consumption when in standby mode, thereby preserving battery life.
• Power Save Mode: The regulator includes a power save mode that automatically switches between pulse-width modulation (PWM) and pulse frequency modulation (PFM) based on the load, optimizing efficiency across the entire load range.
• Compact Package: Housed in a tiny QFN-6L 1.1x1.3mm package, the ST1PS02BQTR is designed for space-constrained applications, without compromising on performance.

Applications

The ST1PS02BQTR is suitable for a broad range of applications, including but not limited to:

• Wearable devices
• IoT devices
• Portable medical equipment
• Wireless sensors and sensor nodes
• Energy harvesting systems

With its high efficiency, low quiescent current, and flexible voltage options, the ST1PS02BQTR from STMicroelectronics is an excellent choice for designers looking to maximize battery life while minimizing space in their power-sensitive applications.