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LTC3252EDE from LINEAR

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LTC3252EDE

Manufacturer: LINEAR

Dual, Low Noise, Inductorless Step-Down DC/DC Converter

Partnumber Manufacturer Quantity Availability
LTC3252EDE LINEAR 550 In Stock

Description and Introduction

Dual, Low Noise, Inductorless Step-Down DC/DC Converter The LTC3252EDE is a high-efficiency, low-noise step-down DC/DC converter manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 4V to 36V  
- **Output Voltage:** Adjustable from 1.22V to 18V  
- **Output Current:** Up to 500mA  
- **Switching Frequency:** 1.2MHz (typical)  
- **Efficiency:** Up to 94%  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 14-Lead DFN (4mm × 3mm)  

### **Descriptions:**  
The LTC3252EDE is a synchronous buck converter with an integrated high-side and low-side switch. It provides a low-noise, regulated output voltage with minimal external components. The device is designed for applications requiring high efficiency and compact size.  

### **Features:**  
- **Low Noise:** Uses a constant-frequency PWM architecture for reduced EMI.  
- **Wide Input Range:** Supports operation from 4V to 36V.  
- **Adjustable Output:** Set via an external resistor divider.  
- **Integrated Switches:** Eliminates the need for external MOSFETs.  
- **Thermal Shutdown:** Protects the device from overheating.  
- **Soft-Start:** Reduces inrush current during startup.  
- **Synchronizable:** Can be synchronized to an external clock.  

This device is commonly used in industrial, automotive, and telecom applications where high efficiency and low noise are critical.

Application Scenarios & Design Considerations

Dual, Low Noise, Inductorless Step-Down DC/DC Converter
Partnumber Manufacturer Quantity Availability
LTC3252EDE LT 95 In Stock

Description and Introduction

Dual, Low Noise, Inductorless Step-Down DC/DC Converter The LTC3252EDE is a high-efficiency, low-noise, dual-output charge pump DC/DC converter manufactured by Linear Technology (now part of Analog Devices).  

### **Specifications:**  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Voltages:**  
  - Positive Output: Up to 2 × VIN  
  - Negative Output: Down to -1 × VIN  
- **Output Current:** Up to 100mA per output  
- **Switching Frequency:** 1.5MHz (typical)  
- **Low Noise:** Constant-frequency operation reduces output ripple  
- **Low Quiescent Current:** 50µA (typical)  
- **Shutdown Current:** <1µA  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** 14-Lead DFN (4mm × 3mm)  

### **Features:**  
- **Dual Output Charge Pump:** Generates both positive and negative voltages from a single input.  
- **No Inductors Required:** Uses only flying capacitors.  
- **Low EMI:** Fixed-frequency operation minimizes noise.  
- **Independent Enable Pins:** Allows separate control of positive and negative outputs.  
- **Thermal Shutdown Protection:** Prevents damage from excessive heat.  
- **Compact Solution:** Suitable for space-constrained applications.  

### **Applications:**  
- Biasing circuits  
- Portable instruments  
- OLED displays  
- Sensor power supplies  

For detailed electrical characteristics, refer to the official datasheet.

Application Scenarios & Design Considerations

Dual, Low Noise, Inductorless Step-Down DC/DC Converter

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