XZ2201
Compact 1A synchronous buck converter with 1.5MHz switching frequency for portable applications
Product Overview
Description
The XZ2201 is a compact synchronous buck converter designed for portable and battery-powered applications. With 1A output current capability and 1.5MHz switching frequency, it provides an optimal balance of efficiency and solution size.
Operating from a 2.5V to 5.5V input voltage range, the XZ2201 is ideal for single Li-ion battery applications. It features automatic power-save mode for high efficiency at light loads and comprehensive protection features.
The device is available in a small SOT-23-5 package, making it perfect for space-constrained designs such as wearables, IoT devices, and portable electronics.
Product Series
XZ
Primary Application
Wearable devices
Key Features
- High efficiency up to 94%
- 1.5MHz switching frequency
- 1A continuous output current
- Automatic power-save mode
- Internal compensation
- Fast transient response
- Cycle-by-cycle current limit
- Thermal shutdown protection
Specifications
| Input Voltage | 2.5V - 5.5V |
|---|---|
| Output Voltage | 0.6V - Vin |
| Output Current | 1A |
| Switching Frequency | 1.5MHz |
| Efficiency | Up to 94% |
| Operating Temperature | -40°C to +85°C |
| Package | SOT-23-5 |
Applications
Wearable devices
Electronic system design
IoT sensors
Sensor signal conditioning
Portable electronics
Electronic system design
Battery-powered devices
Battery and charging management
Smart home devices
Electronic system design
FAE Expert Insights
"The XZ2201 is an excellent choice for low-current applications where simplicity and cost are important. The SOT-23-5 package is easy to work with and widely available. I've used this part in several IoT sensor designs where the 1A capability is more than sufficient. The 1.5MHz frequency allows use of a 2.2μH inductor, which is a good balance between size and efficiency. The automatic power-save mode works well - efficiency stays above 85% even at very light loads. One advantage of the lower frequency compared to the XZ3102 is slightly better peak efficiency. Overall, a solid, reliable buck converter for cost-sensitive applications."
Cost-effective 1A buck converter in easy-to-use SOT-23-5 package
— Michael Chen, BeiLuo
Frequently Asked Questions
What inductor value should I use with XZ2201?
For XZ2201's 1.5MHz switching frequency, a 2.2μH inductor is recommended. This provides a good balance between ripple current and solution size. Use inductors with saturation current rating at least 1.3 times the maximum load current.
Use 2.2μH for typical applications; 1.5μH for smaller size or 3.3μH for lower ripple.