IC Phoenix logo

Home ›  L  › L2 > L4990

L4990 from STM,ST Microelectronics

Fast Delivery, Competitive Price @IC-phoenix

If you need more electronic components or better pricing, we welcome any inquiry.

L4990

Manufacturer: STM

PRIMARY CONTROLLER

Partnumber Manufacturer Quantity Availability
L4990 STM 187 In Stock

Description and Introduction

PRIMARY CONTROLLER Certainly! Here is the factual information about the **L4990** manufactured by **STMicroelectronics (STM)**:  

### **Description**:  
The **L4990** is a **high-voltage monolithic switching regulator** designed for **off-line power supplies**. It operates in **current-mode PWM (Pulse Width Modulation)** and is suitable for **flyback, forward, and boost converter topologies**.  

### **Key Features**:  
- **Input Voltage Range**: Up to **500V** (suitable for offline applications).  
- **Output Voltage**: Adjustable via external components.  
- **Switching Frequency**: Up to **500 kHz** (adjustable).  
- **Current-Mode Control**: Ensures stable operation and fast transient response.  
- **Built-in Protections**:  
  - **Overvoltage Protection (OVP)**  
  - **Undervoltage Lockout (UVLO)**  
  - **Overcurrent Protection (OCP)**  
  - **Thermal Shutdown**  
- **Low Startup Current**: Typically **150 µA**, reducing power dissipation.  
- **High Output Drive Capability**: Directly drives a power MOSFET.  
- **Package Options**: Available in **DIP-8** and **SO-8** packages.  

### **Applications**:  
- **AC/DC Converters**  
- **Flyback and Forward Converters**  
- **Auxiliary Power Supplies**  
- **Industrial and Consumer Power Systems**  

For detailed specifications, refer to the **official STMicroelectronics datasheet** for the **L4990**. Let me know if you need additional technical details.

Application Scenarios & Design Considerations

PRIMARY CONTROLLER

Request Quotation

For immediate assistance, call us at +86 533 2716050 or email [email protected]

Part Number Quantity Target Price($USD) Email Contact Person
We offer highly competitive channel pricing. Get in touch for details.

Specializes in hard-to-find components chips