Multi-band RF frequency synthesizer with integrated VCOs The part **STW81101AT** is manufactured by **STMicroelectronics (ST)**.  

### **Specifications:**  
- **Manufacturer:** STMicroelectronics  
- **Type:** Power Management IC (PMIC)  
- **Package:** PowerSSO-12  
- **Operating Temperature Range:** -40°C to +125°C  
- **Input Voltage Range:** 4.5V to 18V  
- **Output Voltage:** Adjustable  
- **Switching Frequency:** Up to 2.2MHz  
- **Current Rating:** High-efficiency synchronous buck converter  

### **Descriptions & Features:**  
- **High-Efficiency Buck Converter:** Optimized for low power loss and high performance.  
- **Wide Input Voltage Range:** Supports operation from 4.5V to 18V.  
- **Adjustable Output Voltage:** Allows flexibility in power supply design.  
- **Synchronous Rectification:** Improves efficiency and reduces heat dissipation.  
- **Integrated Protection Features:** Includes overcurrent, overvoltage, and thermal shutdown protection.  
- **Compact Package:** PowerSSO-12 for space-constrained applications.  
- **Low Dropout Operation:** Suitable for battery-powered and industrial applications.  

This part is commonly used in **industrial, automotive, and consumer electronics** for efficient power conversion.  

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Multi-band RF frequency synthesizer with integrated VCOs