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LDS3985M25R from STM,ST Microelectronics

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LDS3985M25R

Manufacturer: STM

Very low drop and low noise BiCMOS 300 mA voltage regulator

Partnumber Manufacturer Quantity Availability
LDS3985M25R STM 6000 In Stock

Description and Introduction

Very low drop and low noise BiCMOS 300 mA voltage regulator The LDS3985M25R is a low-dropout (LDO) voltage regulator manufactured by STMicroelectronics (STM). Below are its key specifications, descriptions, and features based on factual information:

### **Specifications:**
- **Output Voltage:** 2.5V (fixed)  
- **Output Current:** 300mA (max)  
- **Dropout Voltage:** 200mV (typical at 300mA load)  
- **Input Voltage Range:** 2.7V to 5.5V  
- **Quiescent Current:** 40µA (typical)  
- **Line Regulation:** 0.05%/V (typical)  
- **Load Regulation:** 0.3%/A (typical)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOT23-5L  

### **Descriptions:**
- The LDS3985M25R is a low-quiescent-current LDO regulator designed for battery-powered applications.  
- It provides a stable 2.5V output with low dropout voltage, making it suitable for power-sensitive devices.  
- The device includes built-in protection features such as thermal shutdown and current limiting.  

### **Features:**
- **Low Dropout Voltage:** Ensures efficient operation even with small input-output differentials.  
- **Low Quiescent Current:** Ideal for battery-operated applications to extend battery life.  
- **Thermal Shutdown Protection:** Prevents damage from excessive heat.  
- **Current Limiting:** Protects the regulator and load from overcurrent conditions.  
- **Stable with Low-ESR Capacitors:** Works with ceramic capacitors (≥1µF) for stability.  
- **Small Form Factor:** SOT23-5L package saves board space.  

This information is sourced from STMicroelectronics' official documentation. For detailed application notes or further specifications, refer to the manufacturer's datasheet.

Application Scenarios & Design Considerations

Very low drop and low noise BiCMOS 300 mA voltage regulator

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