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L497D1 from ST,ST Microelectronics

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L497D1

Manufacturer: ST

HALL EFFECT PICKUP IGNITION CONTROLLER

Partnumber Manufacturer Quantity Availability
L497D1 ST 3900 In Stock

Description and Introduction

HALL EFFECT PICKUP IGNITION CONTROLLER The L497D1 is a monolithic step-down switching regulator manufactured by STMicroelectronics. Here are its key specifications, descriptions, and features:

### **Specifications:**  
- **Input Voltage Range:** 8V to 55V  
- **Output Voltage:** Adjustable from 3.3V to 50V  
- **Output Current:** Up to 1.5A  
- **Switching Frequency:** 100kHz (fixed)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +150°C  
- **Package:** Multiwatt15 (15-lead vertical power package)  

### **Descriptions:**  
- The L497D1 is a step-down (buck) DC-DC converter designed for high-efficiency power supply applications.  
- It includes internal current limiting, thermal shutdown, and an undervoltage lockout (UVLO) feature for protection.  
- The regulator operates in pulse-width modulation (PWM) mode for stable output voltage regulation.  

### **Features:**  
- **Adjustable Output Voltage** via external resistors  
- **Internal Current Limiting** for overload protection  
- **Thermal Shutdown** to prevent overheating  
- **Undervoltage Lockout (UVLO)** for safe operation  
- **Soft-Start Function** to reduce inrush current  
- **Error Amplifier** for precise voltage regulation  
- **100kHz Fixed Switching Frequency** for reduced noise  

The L497D1 is commonly used in industrial, automotive, and power supply applications requiring high input voltage and efficient power conversion.

Application Scenarios & Design Considerations

HALL EFFECT PICKUP IGNITION CONTROLLER
Partnumber Manufacturer Quantity Availability
L497D1 ST 199 In Stock

Description and Introduction

HALL EFFECT PICKUP IGNITION CONTROLLER The L497D1 is a monolithic step-down switching regulator manufactured by STMicroelectronics. Here are its key specifications, descriptions, and features:

### **Specifications:**
- **Input Voltage Range:** 8V to 55V  
- **Output Voltage Range:** 3.3V to 50V (adjustable via external resistors)  
- **Output Current:** Up to 1.5A  
- **Switching Frequency:** 100kHz (fixed)  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +150°C (junction temperature)  
- **Package:** TO-220 (5 pins)  

### **Descriptions:**
- The L497D1 is a step-down (buck) DC-DC converter designed for high-efficiency power supply applications.  
- It integrates a power switch, oscillator, error amplifier, and protection features.  
- Suitable for industrial, automotive, and consumer electronics applications requiring stable voltage regulation.  

### **Features:**
- **Internal Power Switch:** Reduces external component count.  
- **Soft-Start Function:** Limits inrush current during startup.  
- **Current Limiting & Thermal Shutdown:** Protects against overloads and overheating.  
- **Adjustable Output Voltage:** Set via external resistors.  
- **Low Standby Current:** Improves efficiency in light-load conditions.  
- **Under-Voltage Lockout (UVLO):** Ensures proper operation below minimum input voltage.  

For detailed application notes and schematics, refer to the official STMicroelectronics datasheet.

Application Scenarios & Design Considerations

HALL EFFECT PICKUP IGNITION CONTROLLER

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