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LT1941EFE from LINEAR

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LT1941EFE

Manufacturer: LINEAR, LT, LT

Triple monolithic switching regulator.

Partnumber Manufacturer Quantity Availability
LT1941EFE LINEAR, LT, LT 989 In Stock

Description and Introduction

Triple monolithic switching regulator. The LT1941EFE is a high efficiency, monolithic step-up DC/DC converter manufactured by Linear Technology (now part of Analog Devices). Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Input Voltage Range:** 1.8V to 16V  
- **Output Voltage Range:** Up to 40V (adjustable)  
- **Maximum Output Current:** 1.2A (switch current limit)  
- **Switching Frequency:** 1.2MHz (fixed)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 16-Lead TSSOP (FE)  

### **Descriptions:**  
- The LT1941EFE is designed for applications requiring high output voltages from low input sources.  
- It features an internal 1.2A, 40V power switch for compact designs.  
- The device operates in a current-mode architecture for stable performance.  
- Includes soft-start and frequency synchronization capabilities.  

### **Features:**  
- **Wide Input Voltage Range:** Supports operation from 1.8V to 16V.  
- **High Output Voltage:** Capable of generating up to 40V.  
- **1.2MHz Switching Frequency:** Enables small external components.  
- **Adjustable Output Voltage:** Set via external resistors.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Synchronization Capability:** Can sync to an external clock.  
- **Thermal Shutdown Protection:** Safeguards against overheating.  
- **Low Shutdown Current:** <1µA when disabled.  

This information is based on the manufacturer's datasheet for the LT1941EFE.

Application Scenarios & Design Considerations

Triple monolithic switching regulator.

Alternative Part Number

  • TPS55340PWPR --: Wide-input boost/converter in HTSSOP package with comparable switching capability, commonly used as a functional substitute for multi-channel switching regulators.
  • LT3580EMS8E --: Same Linear/ADI family boost/inverting converter with integrated switch, similar topology and control behavior, easier drop-in evaluation.
  • MC34063ADR2G --: Classic general-purpose DC-DC switching regulator controller, widely available and cost-effective for non-critical replacement designs.
  • LM2700MT-ADJ --: Adjustable boost converter with integrated switch in a small package, suitable as a functional alternative for similar step-up applications.
  • MAX668EUB+ --: Constant-frequency step-up controller in a small package, suitable where the LT1941 boost function is used; different series and pinout, so layout changes are required.

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