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January 7, 2025Celebrate the Lunar New Year with the RS53201 and RS53202: Ultra-Efficient Step-Down Converters

As we welcome the Lunar New Year, we’re excited to share an innovative addition to our product lineup—the RS53201 and RS53202 step-down converters. Just as the new year symbolizes renewal and energy, these devices are designed to deliver exceptional efficiency and extended battery life for your applications.
Key Features
- Wide Input Voltage Range: Operates from 2.15V to 5.5V, perfect for diverse power sources.
- Ultra-Low Quiescent Current: With only 60nA operating current, these converters help maximize battery performance.
- High Output Current: Supports up to 550mA output for reliable operation.
- Flexible Voltage Options: Eight output voltage settings (1.2V to 3.3V) configurable via VSEL pins.
- Adaptive Power Management: Automatic transitions between PFM and PWM modes ensure efficiency under varying loads.
- Compact Design: Small 1.55mm x 0.86mm, 8-ball WCSP package, ideal for space-constrained designs.
- Eco-Friendly: RoHS compliant and green-certified.
Product Overview

The RS53201 and RS53202 are designed to align with the spirit of the Lunar New Year—a time for innovation, growth, and longevity. With their ultra-low quiescent current and versatile features, these converters are perfect for powering your next-generation applications while reducing power consumption.
Applications
- Smart Meters and Thermostats: Extends battery life with ultra-low power consumption for continuous energy monitoring and control.
- Wearable Electronics: Compact size and efficient power usage make it perfect for smartwatches and other portable devices.
- Medical Devices: Reliable power for sensor patches and monitors with minimal battery drain.
- Asset Tracking: Ensures long-lasting battery life for uninterrupted tracking and reporting.
- Energy Harvesting: Converts variable inputs into stable power for efficient energy storage and usage.
Explore the RS53201 & RS53202
Celebrate the start of a prosperous year with the RS53201 and RS53202! For more information or to request samples, visit our website or contact our sales team today for the latest datasheets and application notes.
Thank you for considering Reed Semiconductor for your advanced power management needs.