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UCC3946PWG4 from TEXAS

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UCC3946PWG4

Manufacturer: TEXAS

Microprocessor Supervisor with Watchdog Timer 8-TSSOP 0 to 70

Partnumber Manufacturer Quantity Availability
UCC3946PWG4 TEXAS 100 In Stock

Description and Introduction

Microprocessor Supervisor with Watchdog Timer 8-TSSOP 0 to 70 The **UCC3946PWG4** is a **Dual Synchronous Buck PWM Controller** manufactured by **Texas Instruments (TI)**. Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Texas Instruments  
- **Category:** Integrated Circuits (ICs)  
- **Type:** DC-DC Switching Controllers  
- **Output Type:** Transistor Driver  
- **Topology:** Buck (Step Down)  
- **Number of Outputs:** 2  
- **Output Phases:** 2  
- **Voltage - Supply (Vcc/Vdd):** 2.7V to 5.5V  
- **Frequency - Switching:** 300kHz  
- **Duty Cycle (Max):** 100%  
- **Synchronous Rectifier:** Yes  
- **Clock Sync:** No  
- **Control Features:** Enable, Power Good, Soft Start  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package / Case:** TSSOP-20  
- **Mounting Type:** Surface Mount  

### **Descriptions:**
- The **UCC3946PWG4** is a **dual synchronous buck PWM controller** designed for **high-efficiency DC-DC conversion** in battery-powered applications.  
- It operates from a **low input voltage (2.7V to 5.5V)**, making it suitable for **portable and handheld devices**.  
- It features **independent soft-start, power-good monitoring, and enable control** for each output.  
- The device uses **fixed-frequency PWM control** for stable operation.  

### **Features:**
- **Dual Synchronous Buck Controllers** (two independent PWM controllers).  
- **Low Input Voltage Range (2.7V to 5.5V)** for battery-powered applications.  
- **300kHz Fixed Switching Frequency** for consistent performance.  
- **Integrated MOSFET Drivers** for synchronous rectification.  
- **Independent Soft-Start & Power-Good Signals** for each output.  
- **Enable Control** for power sequencing.  
- **Overcurrent & Undervoltage Protection** for reliability.  
- **TSSOP-20 Package** for compact PCB designs.  

This information is based solely on the manufacturer's datasheet and technical documentation.

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