Voltage regulator with ignition comparator, reset, overcurrent protection and 3.3V regulator with independent enable **Part Number:** L5956PD  
**Manufacturer:** STMicroelectronics (STM)  

### **Specifications:**  
- **Type:** Automotive Power Switch  
- **Output Configuration:** High-Side  
- **Number of Outputs:** 1  
- **Output Current (Max):** 5 A  
- **Voltage - Supply (Vcc/Vdd):** 5.5V to 28V  
- **On-State Resistance (Rds(on)):** 70 mΩ (typical)  
- **Operating Temperature Range:** -40°C to +150°C  
- **Protection Features:** Overcurrent, Overtemperature, Short-Circuit, Undervoltage Lockout (UVLO)  
- **Package:** PowerSSO-12  

### **Descriptions:**  
- Designed for automotive applications requiring high reliability.  
- Integrates a high-side power switch with diagnostic and protection features.  
- Suitable for driving resistive, inductive, or capacitive loads.  

### **Features:**  
- **Low Power Consumption:** Optimized for energy efficiency.  
- **Diagnostic Feedback:** Provides fault detection (open-load, short-circuit, thermal shutdown).  
- **High-Side Driver:** Directly controls loads connected to the battery.  
- **Automotive-Grade:** Compliant with AEC-Q100 standards.  
- **Logic-Level Input:** Compatible with 3.3V and 5V microcontrollers.  

For detailed datasheet information, refer to STMicroelectronics' official documentation.

Voltage regulator with ignition comparator, reset, overcurrent protection and 3.3V regulator with independent enable

Voltage regulator with ignition comparator, reset, overcurrent protection and 3.3V regulator with independent enable **Part Number:** L5956PD  
**Manufacturer:** STMicroelectronics (ST)  

### **Specifications:**  
- **Type:** Automotive Power Management IC  
- **Function:** Voltage Regulator  
- **Input Voltage Range:** 4.5V to 36V  
- **Output Voltage:** Adjustable (via external resistors)  
- **Output Current:** Up to 1.5A  
- **Switching Frequency:** 500kHz (typical)  
- **Operating Temperature Range:** -40°C to +150°C  
- **Package:** PowerSO-20 (Exposed Pad)  
- **Protections:** Overcurrent, Overtemperature, Undervoltage Lockout (UVLO)  
- **Compliance:** AEC-Q100 Qualified (Automotive Grade)  

### **Descriptions:**  
The **L5956PD** is a high-efficiency step-down switching regulator designed for automotive applications. It provides a stable and adjustable output voltage with high current capability, making it suitable for powering various automotive electronic systems.  

### **Features:**  
- **Wide Input Voltage Range:** Supports operation from 4.5V to 36V.  
- **High Efficiency:** Optimized for minimal power loss.  
- **Adjustable Output:** Configurable via external resistors.  
- **Integrated Protections:** Includes overcurrent, overtemperature, and UVLO.  
- **Automotive-Grade:** Compliant with AEC-Q100 standards for reliability in harsh environments.  
- **Thermal Performance:** Exposed pad for improved heat dissipation.  

This part is commonly used in automotive power supply systems, infotainment, and lighting applications.

Voltage regulator with ignition comparator, reset, overcurrent protection and 3.3V regulator with independent enable