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LM26480SQ-AA from NSC,National Semiconductor

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LM26480SQ-AA

Manufacturer: NSC

Externally Programmable Dual High-Current Step-Down DC/DC and Dual Linear Regulators

Partnumber Manufacturer Quantity Availability
LM26480SQ-AA,LM26480SQAA NSC 220 In Stock

Description and Introduction

Externally Programmable Dual High-Current Step-Down DC/DC and Dual Linear Regulators The LM26480SQ-AA is a power management IC (PMIC) manufactured by National Semiconductor (NSC). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** National Semiconductor (NSC)  
- **Package:** 24-pin WQFN  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Voltage Range:** Adjustable (depends on configuration)  
- **Number of Outputs:** Dual step-down DC-DC converters  
- **Switching Frequency:** Up to 4MHz (synchronizable)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**
The LM26480SQ-AA is a high-efficiency, dual synchronous step-down DC-DC converter designed for portable and battery-powered applications. It integrates two independent regulators, providing flexibility for powering multiple loads in space-constrained systems. The device supports adjustable output voltages and features a high switching frequency to minimize external component size.

### **Features:**
- **Dual Step-Down Converters:** Two independent regulators with adjustable outputs.  
- **High Efficiency:** Up to 95% efficiency for extended battery life.  
- **Synchronizable Switching:** Up to 4MHz operation, allowing synchronization to an external clock.  
- **Low Dropout Operation:** Maintains regulation even with small input-output differentials.  
- **Power-Good Indicators:** Monitors output status for system reliability.  
- **Soft-Start & Current Limiting:** Prevents inrush current and protects against overloads.  
- **Thermal Shutdown:** Protects the device from overheating.  
- **Compact Package:** 24-pin WQFN for space-saving designs.  

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

Application Scenarios & Design Considerations

Externally Programmable Dual High-Current Step-Down DC/DC and Dual Linear Regulators
Partnumber Manufacturer Quantity Availability
LM26480SQ-AA,LM26480SQAA NS 2713 In Stock

Description and Introduction

Externally Programmable Dual High-Current Step-Down DC/DC and Dual Linear Regulators The LM26480SQ-AA is a power management IC (PMIC) manufactured by National Semiconductor (NS). Here are its key specifications, descriptions, and features:

### **Specifications:**
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Voltage 1 (Buck 1):** Adjustable (0.6V to 3.3V)  
- **Output Voltage 2 (Buck 2):** Adjustable (0.6V to 3.3V)  
- **Output Current (per Buck):** Up to 2A  
- **Switching Frequency:** 2.25MHz (typical)  
- **Efficiency:** Up to 95%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 24-Pin LLP (4mm x 4mm)  

### **Descriptions:**
- Dual synchronous buck regulator with integrated power MOSFETs.  
- Designed for low-power applications requiring high efficiency and compact size.  
- Supports adjustable output voltages via external resistors.  

### **Features:**
- **Dual Output Buck Regulators:** Two independent step-down converters.  
- **Integrated MOSFETs:** Reduces external component count.  
- **High Efficiency:** Uses synchronous rectification.  
- **Soft-Start:** Prevents inrush current.  
- **Power-Good Output:** Monitors regulator status.  
- **Low Quiescent Current:** Improves battery life.  
- **Overcurrent & Thermal Protection:** Enhances reliability.  

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

Application Scenarios & Design Considerations

Externally Programmable Dual High-Current Step-Down DC/DC and Dual Linear Regulators

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