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LT1961EMS8E#PBF from LINEAR

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LT1961EMS8E#PBF

Manufacturer: LINEAR

1.5A, 1.25MHz Step-Up Switching Regulator

Partnumber Manufacturer Quantity Availability
LT1961EMS8E#PBF,LT1961EMS8EPBF LINEAR 1941 In Stock

Description and Introduction

1.5A, 1.25MHz Step-Up Switching Regulator The LT1961EMS8E#PBF is a low dropout (LDO) linear regulator manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Output Voltage:** Adjustable from 1.22V to 20V  
- **Output Current:** 100mA  
- **Dropout Voltage:** 300mV (typical at full load)  
- **Input Voltage Range:** 2.5V to 20V  
- **Quiescent Current:** 40µA (typical)  
- **Line Regulation:** 0.02%/V (typical)  
- **Load Regulation:** 0.05%/mA (typical)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 8-Lead MSOP  

### **Descriptions:**  
- The LT1961 is a low noise, low dropout regulator with high PSRR (Power Supply Rejection Ratio).  
- It features low quiescent current and is stable with small, low-cost ceramic capacitors.  
- The adjustable version allows flexibility in setting the output voltage via an external resistor divider.  

### **Features:**  
- **Low Dropout Voltage:** 300mV typical at full load  
- **Low Noise:** Optimized for sensitive applications  
- **High PSRR:** 75dB at 120Hz  
- **Wide Input Voltage Range:** 2.5V to 20V  
- **Thermal Overload Protection:** Prevents damage from excessive heat  
- **Reverse Battery Protection:** Safeguards against reverse polarity  
- **Short-Circuit Protected:** Enhances reliability  

This regulator is commonly used in battery-powered devices, instrumentation, and noise-sensitive applications.

Application Scenarios & Design Considerations

1.5A, 1.25MHz Step-Up Switching Regulator

Alternative Part Number

  • TPS54331D --: Wide-input 3A step-down converter in SOIC-8 with similar boost/step-down functionality and pin-compatible footprint, widely available and cost-effective.
  • LM2596S-ADJ --: Adjustable step-down regulator in TO-263/SOIC package with comparable current capability and input range, a common drop-in style alternative.
  • MC34063A --: Versatile adjustable DC-DC converter IC supporting step-up, step-down and inverting topologies, suitable as a functional substitute for the LT1961.

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