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L4960H from ST,ST Microelectronics

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L4960H

Manufacturer: ST

2.5A POWER SWITCHING REGULATOR

Partnumber Manufacturer Quantity Availability
L4960H ST 108 In Stock

Description and Introduction

2.5A POWER SWITCHING REGULATOR The L4960H is a monolithic power switching regulator manufactured by STMicroelectronics. Below are the factual details about its specifications, descriptions, and features:

### **Specifications:**
- **Output Voltage:** Adjustable from **5.1V to 40V**  
- **Output Current:** Up to **2.5A** (with proper heat sinking)  
- **Input Voltage Range:** **9V to 46V**  
- **Switching Frequency:** **100 kHz** (fixed)  
- **Efficiency:** Up to **90%**  
- **Operating Junction Temperature:** **-40°C to +150°C**  
- **Package:** **TO-220-7 (Multiwatt-7)**  

### **Descriptions:**
- The L4960H is a **step-down (buck) switching regulator** designed for high-efficiency power conversion.  
- It integrates a **PWM controller, power switch, and protection circuits** into a single chip.  
- Suitable for applications requiring **high current and adjustable output voltage**.  

### **Features:**
- **Built-in current limiting** for overload protection.  
- **Thermal shutdown** to prevent overheating.  
- **Soft-start function** to reduce inrush current.  
- **Adjustable output voltage** via external resistors.  
- **Low standby current** in shutdown mode.  
- **Internal oscillator** with fixed frequency for stable operation.  

For exact performance characteristics and application details, refer to the **official STMicroelectronics datasheet**.

Application Scenarios & Design Considerations

2.5A POWER SWITCHING REGULATOR

Alternative Part Number

  • LM2576HVT-ADJ --: Widely used adjustable step-down switching regulator in a TO-220 package, similar input voltage range and current capability, easy drop-in replacement with minor external component changes.
  • MC34063A --: Versatile DC-DC switching regulator controller that can be configured as a step-down converter, very common and low-cost alternative for similar power supply designs.
  • L5973D --: Modern step-down switching regulator from a different ST series with comparable voltage and current ratings, offering improved efficiency and thermal performance.
  • LM2596T-ADJ --: 3A adjustable buck regulator in TO-220, pin-compatible in function with the L4960H and very common, offering an easy drop-in style replacement for many designs.

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