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L5970 from ST,ST Microelectronics

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L5970

Manufacturer: ST

UP TO 1A STEP DOWN SWITCHING REGULATOR

Partnumber Manufacturer Quantity Availability
L5970 ST 2600 In Stock

Description and Introduction

UP TO 1A STEP DOWN SWITCHING REGULATOR The L5970 is a step-down monolithic power switching regulator manufactured by STMicroelectronics. Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**  
- **Input Voltage Range:** 4.4V to 36V  
- **Output Voltage Range:** Adjustable from 1.235V to 35V  
- **Output Current:** Up to 1A  
- **Switching Frequency:** 250 kHz (fixed)  
- **Efficiency:** Up to 90%  
- **Operating Junction Temperature:** -40°C to 150°C  
- **Package:** HSOP-8 (Exposed Pad)  

### **Descriptions:**  
- The L5970 is a step-down DC-DC converter with an internal power switch.  
- It is designed for applications requiring high efficiency and compact size.  
- Includes built-in protections such as thermal shutdown and current limiting.  

### **Features:**  
- **Internal Power MOSFET** (1.5A peak current capability)  
- **Low Dropout Operation** (100% duty cycle possible)  
- **Soft-Start Function** to limit inrush current  
- **Pulse-by-Pulse Current Limiting**  
- **Thermal Shutdown Protection**  
- **Adjustable Output Voltage** via external resistors  
- **Synchronizable Switching Frequency** (with external clock)  

This information is based on the manufacturer's datasheet for the L5970.

Application Scenarios & Design Considerations

UP TO 1A STEP DOWN SWITCHING REGULATOR

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