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LT3481IDD from LT

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LT3481IDD

Manufacturer: LT

36V, 2A, 2.8MHz Step-Down Switching Regulator with 50碌A Quiescent Current

Partnumber Manufacturer Quantity Availability
LT3481IDD LT 48 In Stock

Description and Introduction

36V, 2A, 2.8MHz Step-Down Switching Regulator with 50碌A Quiescent Current The LT3481IDD is a 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:** 2.4V to 16V  
- **Output Voltage Range:** Adjustable up to 40V  
- **Output Current:** Up to 2.1A (switch current limit)  
- **Switching Frequency:** 1.2MHz (fixed)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 10-Lead DFN (3mm × 3mm)  

### **Descriptions:**
- The LT3481IDD is a high-efficiency, current-mode step-up DC/DC converter.  
- It is designed for applications requiring high output voltages from low input sources.  
- The device includes an internal 2.1A, 40V power switch and requires minimal external components.  

### **Features:**
- **Wide Input Voltage Range:** Supports 2.4V to 16V input.  
- **High Output Voltage Capability:** Adjustable up to 40V.  
- **Internal Power Switch:** 2.1A, 40V NPN switch.  
- **Fixed Frequency Operation:** 1.2MHz switching frequency for small external components.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Low Shutdown Current:** <1µA when disabled.  
- **Thermal Shutdown Protection:** Prevents overheating.  
- **Current Mode Control:** Ensures stable operation and fast transient response.  

The LT3481IDD is commonly used in applications such as LED drivers, battery-powered systems, and industrial power supplies.

Application Scenarios & Design Considerations

36V, 2A, 2.8MHz Step-Down Switching Regulator with 50碌A Quiescent Current
Partnumber Manufacturer Quantity Availability
LT3481IDD LINEAR 43 In Stock

Description and Introduction

36V, 2A, 2.8MHz Step-Down Switching Regulator with 50碌A Quiescent Current The LT3481IDD is a dual step-down DC/DC converter manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 2.6V to 16V  
- **Output Voltage Range:** 0.8V to 14V (adjustable)  
- **Output Current:** Up to 2.1A (1.05A per channel)  
- **Switching Frequency:** 1.25MHz (fixed)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 10-Lead DFN (3mm × 3mm)  
- **Synchronous Rectification:** Yes  
- **Low Dropout Operation:** Yes  
- **Shutdown Current:** <1µA  

### **Descriptions:**  
The LT3481IDD is a dual monolithic step-down switching regulator with internal power switches, designed for high efficiency and compact size. It operates from an input voltage range of 2.6V to 16V, making it suitable for a variety of applications, including portable devices, industrial systems, and automotive electronics.  

### **Features:**  
- Dual independent step-down regulators  
- Internal 1.4A power switches  
- Adjustable output voltage (0.8V to 14V)  
- Synchronous rectification for high efficiency  
- Low dropout operation (100% duty cycle)  
- 1.25MHz fixed switching frequency  
- Soft-start and current limit protection  
- Thermal shutdown protection  
- Small 10-lead DFN package  

This information is based on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

36V, 2A, 2.8MHz Step-Down Switching Regulator with 50碌A Quiescent Current

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