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LM2675M-12 from NSC,National Semiconductor

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LM2675M-12

Manufacturer: NSC, NS

SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage Regulator

Partnumber Manufacturer Quantity Availability
LM2675M-12,LM2675M12 NSC, NS 1665 In Stock

Description and Introduction

SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage Regulator The LM2675M-12 is a step-down voltage regulator manufactured by National Semiconductor (NSC). Here are its key specifications, descriptions, and features:

### **Specifications:**
- **Output Voltage:** Fixed 12V
- **Input Voltage Range:** 8V to 40V
- **Output Current:** Up to 1A
- **Switching Frequency:** 260 kHz (typical)
- **Efficiency:** Up to 92%
- **Operating Temperature Range:** -40°C to +125°C
- **Package:** SOIC-8 (Surface Mount)

### **Descriptions:**
- The LM2675M-12 is a monolithic integrated circuit that provides all active functions for a step-down (buck) switching regulator.
- It is designed for easy implementation in power supply applications requiring high efficiency and compact size.
- The device includes an internal NPN switch, fixed-frequency oscillator, thermal shutdown, and current limiting.

### **Features:**
- **Simple and Easy to Use:** Requires minimal external components.
- **High Efficiency:** Uses a low ON-resistance DMOS power switch.
- **Fixed Frequency Operation:** 260 kHz for reduced noise and predictable performance.
- **Thermal Shutdown:** Protects the device from overheating.
- **Current Limiting:** Prevents damage during overload conditions.
- **Low Power Standby Mode:** Consumes minimal current when disabled.

This information is based on the manufacturer's datasheet for the LM2675M-12.

Application Scenarios & Design Considerations

SIMPLE SWITCHER Power Converter High Efficiency 1A Step-Down Voltage Regulator

Alternative Part Number

  • TPS54231D --: Pin-compatible step-down converter with similar 12V fixed output capability and wide input range; TI is the direct successor to NSC parts.
  • MP1584EN --: Widely available buck converter with comparable current rating and adjustable output that can be set to 12V; lower cost alternative.
  • L5973D --: Step-down switching regulator with similar input voltage range and current capability, suitable as a functional replacement for 12V rail designs.

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