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L4989D013TR from ST,ST Microelectronics

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L4989D013TR

Manufacturer: ST, STM, ST,ST

Low power voltage regulator

Partnumber Manufacturer Quantity Availability
L4989D013TR ST, STM, ST,ST 20880 In Stock

Description and Introduction

Low power voltage regulator The L4989D013TR is a power factor correction (PFC) controller manufactured by STMicroelectronics. Below are the factual details about its specifications, descriptions, and features:

### **Manufacturer:**  
STMicroelectronics  

### **Specifications:**  
- **Input Voltage Range:** 85 V to 265 V (AC)  
- **Output Voltage Range:** Adjustable (typically up to 400 V DC)  
- **Switching Frequency:** Up to 300 kHz  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SO-8 (Surface Mount)  
- **Control Method:** Transition Mode (TM) PFC  
- **Maximum Duty Cycle:** 94%  
- **Start-Up Current:** < 50 µA  
- **Supply Voltage (VCC):** 10.5 V to 22 V  

### **Descriptions:**  
The L4989D013TR is a high-performance PFC controller designed for AC-DC converters. It operates in transition mode (boundary conduction mode) to improve power factor and efficiency. It is suitable for applications requiring compliance with energy efficiency standards such as ENERGY STAR and IEC 61000-3-2.  

### **Features:**  
- **Power Factor Correction (PFC):** Ensures near-unity power factor.  
- **Overvoltage Protection (OVP):** Safeguards against excessive output voltage.  
- **Undervoltage Lockout (UVLO):** Prevents operation at insufficient supply voltage.  
- **Zero Current Detection (ZCD):** Ensures operation in transition mode.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Low Standby Power Consumption:** Suitable for energy-efficient designs.  
- **Internal Startup Timer:** Reduces external component count.  
- **Peak Current Limiting:** Protects against overload conditions.  

This information is based on the manufacturer's datasheet and technical documentation. For further details, refer to the official STMicroelectronics datasheet.

Application Scenarios & Design Considerations

Low power voltage regulator

Alternative Part Number

  • UC3842BD1 --: Industry-standard current-mode PWM controller in SO-8, widely used as a functional substitute for offline converter control ICs like the L4989.
  • NCP1252ADR2G --: Current-mode PWM controller with similar control-loop functionality and SO-8 package, suitable for SMPS designs requiring a drop-in style replacement.
  • ICE3BR0665J --: Integrated offline PWM controller with built-in protection features, offering comparable converter control performance for power supply applications.
  • UCC28070D --: Interleaved PFC controller in SOIC package, functionally similar to the L4989 PFC controller and widely available.
  • NCP1654BD65R2G --: Continuous conduction mode PFC controller with comparable control scheme and SOIC-8 footprint.
  • ICE3PCS01G --: PFC controller IC with similar application role and package, suitable as a design alternative.
  • FAN6982MY --: PFC controller offering similar functionality and package compatibility, usable as a secondary alternative when the primary options are unavailable.

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