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L6728AHTR from ST,ST Microelectronics

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L6728AHTR

Manufacturer: ST

High frequency single phase PWM controller with Power Good

Partnumber Manufacturer Quantity Availability
L6728AHTR ST 3899 In Stock

Description and Introduction

High frequency single phase PWM controller with Power Good The **L6728AHTR** is a **synchronous buck controller** manufactured by **STMicroelectronics**.  

### **Key Specifications:**  
- **Input Voltage Range:** 4.5V to 5.5V  
- **Output Voltage Range:** Adjustable down to 0.6V  
- **Switching Frequency:** 300kHz to 1MHz (adjustable)  
- **Maximum Output Current:** Up to 25A (with external MOSFETs)  
- **Efficiency:** Up to 95%  
- **Control Method:** Voltage mode with adaptive non-overlapping gate drivers  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 32-pin HTSSOP  

### **Features:**  
- **Integrated MOSFET Drivers** for N-channel MOSFETs  
- **Programmable Soft-Start**  
- **Power Good Indicator**  
- **Overcurrent Protection (OCP)**  
- **Overvoltage Protection (OVP)**  
- **Undervoltage Lockout (UVLO)**  
- **Adjustable Switching Frequency**  
- **Synchronization Capability**  

### **Applications:**  
- High-performance computing  
- Telecom and networking equipment  
- Industrial power supplies  
- Point-of-load (POL) converters  

This information is based on STMicroelectronics' official datasheet for the **L6728AHTR**.

Application Scenarios & Design Considerations

High frequency single phase PWM controller with Power Good

Alternative Part Number

  • ISL6545IBZ --: Single-phase synchronous buck PWM controller with integrated gate drivers, functionally similar to the L6728A and widely available.
  • TPS51620RHAR --: Single-phase synchronous buck controller for CPU/GPU core supplies, comparable control scheme and driver integration.
  • NCP81109DMNTXG --: Single-phase synchronous buck controller with integrated drivers, suitable as a functional replacement in similar VR applications.

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