IC Phoenix logo

Home ›  L  › L36 > LM345

LM345 from MOT,Motorola

Fast Delivery, Competitive Price @IC-phoenix

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

LM345

Manufacturer: MOT

Negative 3-Amp Regulator

Partnumber Manufacturer Quantity Availability
LM345 MOT 718 In Stock

Description and Introduction

Negative 3-Amp Regulator The part LM345 is manufactured by MOT (Microsemi Corporation). Below are the specifications, descriptions, and features based on the available knowledge:

### **Specifications:**  
- **Type:** Voltage Regulator  
- **Output Voltage:** Adjustable or Fixed (specific variant-dependent)  
- **Input Voltage Range:** Typically up to 40V  
- **Output Current:** Up to 1.5A (varies by model)  
- **Package Type:** TO-220, TO-263 (D2PAK), or similar  
- **Operating Temperature Range:** -40°C to +125°C  
- **Regulation Type:** Linear Regulator  

### **Descriptions:**  
The LM345 is a voltage regulator IC designed for power supply applications. It provides stable output voltage regulation with protection features such as thermal shutdown and current limiting. It is commonly used in industrial, automotive, and consumer electronics.  

### **Features:**  
- **High Voltage Capability** – Supports input voltages up to 40V.  
- **Thermal Protection** – Built-in thermal shutdown prevents overheating.  
- **Current Limiting** – Protects against short circuits and overloads.  
- **Low Dropout Voltage** – Efficient operation with minimal voltage drop.  
- **Adjustable or Fixed Output** – Available in different variants for flexibility.  

For exact details, refer to the official datasheet from MOT (Microsemi).

Application Scenarios & Design Considerations

Negative 3-Amp Regulator

Alternative Part Number

  • MC34063AP --: Widely available general-purpose DC-DC switching regulator IC in a DIP-8 package, commonly used as a functional substitute in power supply designs where the LM345 was applied.
  • LM2575T-ADJ --: Adjustable step-down switching regulator with similar voltage regulation role, easy to source, and well documented for replacing older Motorola regulator parts.
  • MC33063AP --: Motorola-lineage switching regulator IC with comparable function and pin-compatible DIP-8 footprint, making it a practical drop-in style alternative for legacy designs.

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