IC Phoenix logo

Home ›  L  › L36 > LM3403M

LM3403M from NS,National Semiconductor

Fast Delivery, Competitive Price @IC-phoenix

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

LM3403M

Manufacturer: NS

Quad Operational Amplifiers

Partnumber Manufacturer Quantity Availability
LM3403M NS 2470 In Stock

Description and Introduction

Quad Operational Amplifiers The LM3403M is a switching regulator manufactured by National Semiconductor (NS).  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 36V  
- **Output Voltage Range:** Adjustable down to 1.225V  
- **Output Current:** Up to 3A  
- **Switching Frequency:** Adjustable from 50kHz to 1MHz  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOIC-8  

### **Descriptions:**  
The LM3403M is a monolithic buck (step-down) switching regulator designed for high-efficiency power conversion. It integrates a high-side N-channel MOSFET and provides a simple, compact solution for step-down DC-DC applications.  

### **Features:**  
- **Wide Input Voltage Range (4.5V to 36V)**  
- **Adjustable Output Voltage**  
- **Internal N-Channel MOSFET (0.25Ω typical RDS(ON))**  
- **Adjustable Switching Frequency (50kHz to 1MHz)**  
- **Cycle-by-Cycle Current Limiting**  
- **Thermal Shutdown Protection**  
- **Undervoltage Lockout (UVLO)**  
- **Soft-Start Capability**  

This regulator is commonly used in industrial, automotive, and general-purpose power supply applications.

Application Scenarios & Design Considerations

Quad Operational Amplifiers

Alternative Part Number

  • MC3403DR2 --: Quad operational amplifier in the same 3403 family with equivalent pinout and electrical specifications, available in SOIC package.
  • TL084CDR --: Quad JFET-input op-amp with similar supply range and pinout, widely available and often used as a functional replacement.
  • LM324DR --: Industry-standard quad op-amp with compatible pinout and supply voltage range, low cost and broad availability.

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