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LD3985M18R from ST,ST Microelectronics

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LD3985M18R

Manufacturer: ST

ULTRA LOW DROP LOW NOISE BICMOS VOLTAGE REGULATORS LOW ESR CAPACITORS COMPATIBLE

Partnumber Manufacturer Quantity Availability
LD3985M18R ST 6000 In Stock

Description and Introduction

ULTRA LOW DROP LOW NOISE BICMOS VOLTAGE REGULATORS LOW ESR CAPACITORS COMPATIBLE The LD3985M18R is a low-dropout (LDO) voltage regulator manufactured by STMicroelectronics.  

### **Specifications:**  
- **Output Voltage:** 1.8V  
- **Output Current:** 300mA  
- **Dropout Voltage:** 200mV (typical) at 300mA load  
- **Input Voltage Range:** 2.3V to 6.0V  
- **Low Quiescent Current:** 50μA (typical)  
- **Low Noise:** 30μVRMS (with bypass capacitor)  
- **High PSRR:** 70dB at 1kHz  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOT-23-5L  

### **Descriptions & Features:**  
- Ultra-low-dropout linear regulator designed for battery-powered applications.  
- Stable with low-ESR ceramic capacitors (≥1μF).  
- Includes thermal shutdown and current limit protection.  
- Suitable for portable devices, wireless applications, and embedded systems.  
- Logic-controlled enable (standby mode reduces power consumption).  

This regulator provides a stable 1.8V output with high efficiency and low noise performance.

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