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LP3972 from NS,National Semiconductor

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LP3972

Manufacturer: NS

Power Management Unit for Advanced Application Processors

Partnumber Manufacturer Quantity Availability
LP3972 NS 391 In Stock

Description and Introduction

Power Management Unit for Advanced Application Processors The LP3972 is a power management IC (PMIC) manufactured by National Semiconductor (NS). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**
- **Input Voltage Range:** 2.7V to 5.5V  
- **Output Voltage Range:** Adjustable and fixed options (dependent on configuration)  
- **Number of Regulators:**  
  - 3 high-efficiency step-down DC-DC converters  
  - 4 low-dropout (LDO) linear regulators  
- **Switching Frequency:** Typically 1.5MHz (for DC-DC converters)  
- **Quiescent Current:** Low (typically in µA range for power-saving modes)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Type:** Typically QFN or similar small form factor  

### **Descriptions:**
- The LP3972 is designed for portable battery-powered applications, providing multiple regulated power rails.  
- It integrates both switching and linear regulators to optimize efficiency and reduce external component count.  
- Suitable for powering processors, memory, and peripherals in smartphones, tablets, and other portable devices.  

### **Features:**
- **High-Efficiency DC-DC Converters:** Up to 95% efficiency (depending on load and conditions).  
- **Low-Dropout (LDO) Regulators:** Stable output with low noise for sensitive analog circuits.  
- **Programmable Power Sequencing:** Allows flexible startup/shutdown timing.  
- **Dynamic Voltage Scaling (DVS):** Adjusts output voltage in real-time for power optimization.  
- **Power-Good Indicators:** Monitors regulator outputs for fault detection.  
- **I²C Interface:** Enables digital control and configuration of regulator settings.  
- **Thermal and Overcurrent Protection:** Safeguards against excessive temperature and current.  

These details are based on the manufacturer's datasheet and technical documentation.

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