IC Phoenix logo

Home ›  S  › S21 > SG1843J

SG1843J from LINFINITY

Fast Delivery, Competitive Price @IC-phoenix

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

SG1843J

Manufacturer: LINFINITY

CURRENT MODE PWM CONTROLLER

Partnumber Manufacturer Quantity Availability
SG1843J LINFINITY 47 In Stock

Description and Introduction

CURRENT MODE PWM CONTROLLER The part **SG1843J** is manufactured by **LINFINITY**. Below are the specifications, descriptions, and features based on the available knowledge:

### **Specifications:**  
- **Manufacturer:** LINFINITY  
- **Part Number:** SG1843J  
- **Type:** Switching Regulator IC  
- **Input Voltage Range:** 8V to 40V  
- **Output Voltage:** Adjustable  
- **Output Current:** Up to 3A  
- **Switching Frequency:** 52kHz (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** TO-220  

### **Descriptions:**  
The **SG1843J** is a **PWM (Pulse Width Modulation) controller** designed for **switching power supply applications**. It provides high efficiency and precise voltage regulation, making it suitable for DC-DC converters and power management systems.  

### **Features:**  
- **Adjustable Output Voltage**  
- **Current Limiting Protection**  
- **Under-Voltage Lockout (UVLO)**  
- **Soft-Start Function**  
- **High Efficiency**  
- **Thermal Shutdown Protection**  

For detailed application notes or additional technical parameters, refer to the official **LINFINITY datasheet**.

Application Scenarios & Design Considerations

CURRENT MODE PWM CONTROLLER
Partnumber Manufacturer Quantity Availability
SG1843J SG 20 In Stock

Description and Introduction

CURRENT MODE PWM CONTROLLER Part Number: SG1843J  
Manufacturer: SG  

**Specifications:**  
- **Type:** Voltage Regulator IC  
- **Output Voltage:** Adjustable or Fixed (specific value depends on variant)  
- **Output Current:** Up to 3A (varies by model)  
- **Input Voltage Range:** 4.5V to 40V  
- **Dropout Voltage:** Typically 1.5V at full load  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package Type:** TO-220 or similar  

**Descriptions:**  
- The SG1843J is a high-performance voltage regulator IC designed for power supply applications.  
- It provides stable output voltage with built-in protection features like thermal shutdown and current limiting.  

**Features:**  
- Adjustable or fixed output voltage options  
- High efficiency and low dropout voltage  
- Overcurrent and thermal protection  
- Wide input voltage range  
- Suitable for industrial and consumer electronics  

For exact details, refer to the manufacturer's datasheet.

Application Scenarios & Design Considerations

CURRENT MODE PWM CONTROLLER
Partnumber Manufacturer Quantity Availability
SG1843J 47 In Stock

Description and Introduction

CURRENT MODE PWM CONTROLLER Here are the factual details about part **SG1843J** from Ic-phoenix technical data files:  

### **Manufacturer:**  
- **Sanken Electric Co., Ltd.**  

### **Specifications:**  
- **Type:** Switching Regulator IC (PWM Controller)  
- **Package:** SIP-4 (Single In-line Package, 4 pins)  
- **Input Voltage Range:** 8.5V to 30V  
- **Output Voltage:** Adjustable (via external components)  
- **Switching Frequency:** 50kHz (typical)  
- **Maximum Duty Cycle:** 90%  
- **Output Current:** Up to 3A (with proper heat sinking)  
- **Operating Temperature Range:** -20°C to +85°C  

### **Descriptions:**  
- Designed for **switch-mode power supply (SMPS)** applications.  
- Includes built-in **PWM control, oscillator, and high-voltage startup circuit**.  
- Features **soft-start function** to reduce inrush current.  
- Suitable for **offline flyback converters** and **buck/boost regulators**.  

### **Features:**  
- **High-voltage startup circuit** (eliminates need for auxiliary winding).  
- **Low standby power consumption**.  
- **Overcurrent protection (OCP)** with latch function.  
- **Thermal shutdown protection**.  
- **Under-voltage lockout (UVLO)** for safe operation.  

For exact application circuits and external component recommendations, refer to the **official datasheet**.

Application Scenarios & Design Considerations

CURRENT MODE PWM 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