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LT1959CR#TR from LINEAR

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15.625ms

LT1959CR#TR

Manufacturer: LINEAR

4.5A, 500kHz Step-Down Switching Regulator

Partnumber Manufacturer Quantity Availability
LT1959CR#TR,LT1959CRTR LINEAR 128 In Stock

Description and Introduction

4.5A, 500kHz Step-Down Switching Regulator The LT1959CR#TR is a switching regulator IC manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 3.6V to 25V  
- **Output Voltage Range:** Adjustable from 1.23V to 20V  
- **Output Current:** Up to 1.5A  
- **Switching Frequency:** 200kHz  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** TO-220-5  
- **Topology:** Buck (Step-Down) Regulator  
- **Protection Features:** Overcurrent, Overtemperature, and Short-Circuit Protection  

### **Descriptions:**  
The LT1959CR#TR is a high-efficiency monolithic step-down switching regulator designed for medium-power applications. It integrates a high-side power switch and control circuitry, requiring minimal external components.  

### **Features:**  
- Wide input voltage range (3.6V to 25V)  
- Adjustable output voltage (1.23V to 20V)  
- High efficiency (up to 95%)  
- Low dropout operation (100% duty cycle)  
- Built-in protection features (thermal shutdown, current limiting)  
- Fixed 200kHz switching frequency  
- Available in a TO-220-5 package  

For detailed application notes, refer to the official datasheet from Analog Devices (formerly Linear Technology).

Partnumber Manufacturer Quantity Availability
LT1959CR#TR,LT1959CRTR LT 148 In Stock

Description and Introduction

4.5A, 500kHz Step-Down Switching Regulator The LT1959CR#TR is a high voltage, high current switching regulator manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 3.6V to 60V  
- **Output Voltage Range:** Adjustable from 1.23V to 57V  
- **Output Current:** Up to 1.5A  
- **Switching Frequency:** 200kHz  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 7-Lead TO-220  

### **Descriptions and Features:**  
- **High Voltage Operation:** Supports input voltages up to 60V.  
- **Adjustable Output:** Configurable via external resistors.  
- **Current Mode Control:** Provides fast transient response and stable operation.  
- **Low Dropout Operation:** Maintains regulation with small headroom.  
- **Thermal Protection:** Includes overtemperature shutdown.  
- **Wide Temperature Range:** Suitable for industrial and automotive applications.  
- **Burst Mode® Operation:** Enhances efficiency at light loads.  

This regulator is commonly used in power supply designs for industrial, automotive, and telecom applications.

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