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LT1956EFE#PBF from LINEAR

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LT1956EFE#PBF

Manufacturer: LINEAR, LT

High Voltage, 1.5A, 500kHz Step-Down Switching Regulators

Partnumber Manufacturer Quantity Availability
LT1956EFE#PBF,LT1956EFEPBF LINEAR, LT 1797 In Stock

Description and Introduction

High Voltage, 1.5A, 500kHz Step-Down Switching Regulators The LT1956EFE#PBF is a switching regulator IC manufactured by Linear Technology (now part of Analog Devices). Below are the factual details about this part:

### **Specifications:**
- **Manufacturer:** LINEAR (Linear Technology)  
- **Part Number:** LT1956EFE#PBF  
- **Package:** 16-Lead TSSOP (FE)  
- **Type:** Step-Down (Buck) Switching Regulator  
- **Input Voltage Range:** 3.6V to 25V  
- **Output Voltage Range:** Adjustable from 1.22V to 20V  
- **Output Current:** Up to 1.5A  
- **Switching Frequency:** 200kHz to 500kHz (adjustable)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Features:**  
  - Adjustable frequency  
  - Soft-start capability  
  - Current mode control  
  - Low dropout operation  
  - Thermal shutdown protection  

### **Descriptions:**  
The LT1956EFE#PBF is a high-efficiency monolithic buck switching regulator designed for step-down voltage conversion. It is suitable for a wide range of applications, including industrial, automotive, and battery-powered systems. The device includes internal power switches and control circuitry, minimizing external component count.  

### **Features:**  
- **Wide Input Voltage Range:** 3.6V to 25V  
- **High Output Current:** Up to 1.5A  
- **Adjustable Output Voltage:** 1.22V to 20V  
- **Adjustable Switching Frequency:** 200kHz to 500kHz  
- **Low Dropout Operation:** Maintains regulation with small input-output differential  
- **Soft-Start Function:** Reduces inrush current  
- **Thermal Shutdown Protection:** Prevents overheating  
- **Current Mode Control:** Improves transient response and loop stability  

This information is based on the manufacturer's datasheet. For detailed application notes and circuit examples, refer to the official documentation.

Application Scenarios & Design Considerations

High Voltage, 1.5A, 500kHz Step-Down Switching Regulators

Alternative Part Number

  • LM2676S-ADJ --: Simple switcher step-down regulator with comparable input voltage range and adjustable output, widely available and pin-compatible in function.
  • TPS54331D --: 3A step-down converter with similar input range and adjustable output, good drop-in functional replacement for buck applications.
  • MC34063A --: Versatile adjustable buck/boost/inverting switching regulator, lower current capability but broadly available and cost-effective for less demanding loads.
  • TPS5430DDA --: 3A step-down converter with wide input range and similar switching frequency, suitable drop-in functional replacement in many designs.

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