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LTC3822EDD from LINEAR

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LTC3822EDD

Manufacturer: LINEAR

No RSENSE, Low Input Voltage, Synchronous Step-Down DC/DC Controller

Partnumber Manufacturer Quantity Availability
LTC3822EDD LINEAR 92 In Stock

Description and Introduction

No RSENSE, Low Input Voltage, Synchronous Step-Down DC/DC Controller The LTC3822EDD is a high-efficiency, dual monolithic synchronous step-down switching regulator controller manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 36V  
- **Output Voltage Range:** 0.8V to 24V  
- **Switching Frequency Range:** 50kHz to 900kHz (adjustable)  
- **Maximum Duty Cycle:** 100%  
- **Operating Temperature Range:** -40°C to 125°C  
- **Package:** 10-Lead DFN (3mm × 3mm)  

### **Descriptions:**  
- The LTC3822EDD is designed to drive two N-channel MOSFETs in a synchronous buck configuration.  
- It features a constant-frequency current-mode architecture for stable operation.  
- Includes adjustable soft-start and tracking for controlled power-up sequencing.  
- Operates in either forced continuous mode or pulse-skipping mode for improved efficiency at light loads.  

### **Features:**  
- **High Efficiency:** Up to 95% efficiency with synchronous rectification.  
- **Adjustable Frequency:** Allows optimization for efficiency and component size.  
- **Precision Reference:** 0.8V ±1% reference voltage for accurate regulation.  
- **Low Shutdown Current:** <1µA when disabled.  
- **Power Good Output:** Provides a signal indicating output voltage regulation.  
- **Short-Circuit Protection:** Prevents damage during fault conditions.  
- **Synchronizable:** Can be synchronized to an external clock.  

This information is based solely on the manufacturer's datasheet.

Application Scenarios & Design Considerations

No RSENSE, Low Input Voltage, Synchronous Step-Down DC/DC Controller
Partnumber Manufacturer Quantity Availability
LTC3822EDD LT 56 In Stock

Description and Introduction

No RSENSE, Low Input Voltage, Synchronous Step-Down DC/DC Controller The LTC3822EDD is a high-efficiency, dual-phase synchronous step-down DC/DC controller manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 4.5V to 36V  
- **Output Voltage Range:** 0.8V to 5.5V  
- **Switching Frequency:** Adjustable from 50kHz to 900kHz  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to 125°C  
- **Package:** 10-Lead DFN (3mm × 3mm)  
- **Current Mode Control:** Ensures fast transient response  
- **Phase-Lockable Frequency:** Synchronizable to an external clock  
- **Low Shutdown Current:** <1µA  

### **Descriptions and Features:**  
- **Dual-Phase Operation:** Reduces input and output ripple current, improving efficiency.  
- **Precision Reference:** ±1% output voltage accuracy.  
- **Programmable Soft-Start:** Reduces inrush current during startup.  
- **Power Good Output:** Monitors output voltage status.  
- **Wide Input Range:** Suitable for automotive, industrial, and telecom applications.  
- **Integrated MOSFET Drivers:** Reduces external component count.  
- **Short-Circuit Protection:** Enhances reliability under fault conditions.  

The LTC3822EDD is designed for high-power applications requiring efficient power conversion with minimal external components.

Application Scenarios & Design Considerations

No RSENSE, Low Input Voltage, Synchronous Step-Down DC/DC Controller

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