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LD3985M12R from ST,ST Microelectronics

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LD3985M12R

Manufacturer: ST

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

Partnumber Manufacturer Quantity Availability
LD3985M12R ST 6000 In Stock

Description and Introduction

ULTRA LOW DROP-LOW NOISE BICMOS VOLTAGE REGULATORS LOW ESR CAPACITORS COMPATIBLE The LD3985M12R is a low-dropout (LDO) voltage regulator manufactured by STMicroelectronics. Below are its key specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**
- **Output Voltage:** 1.2V (fixed)  
- **Output Current:** Up to 150mA  
- **Dropout Voltage:** 160mV (typical) at 100mA load  
- **Input Voltage Range:** 1.5V to 5.5V  
- **Low Quiescent Current:** 50µA (typical)  
- **High PSRR:** 70dB at 1kHz  
- **Low Noise:** 30µVRMS (typical)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOT-23-5L  

### **Descriptions:**
The LD3985M12R is a CMOS LDO regulator designed for applications requiring a stable and precise 1.2V supply. It features low dropout voltage, low quiescent current, and excellent noise performance, making it suitable for battery-powered devices, portable electronics, and noise-sensitive applications.

### **Features:**
- **Ultra-Low Dropout Voltage** (160mV at 100mA)  
- **Very Low Quiescent Current** (50µA typical)  
- **High Power Supply Rejection Ratio (PSRR)** (70dB at 1kHz)  
- **Low Output Noise** (30µVRMS typical)  
- **Thermal Shutdown and Current Limit Protection**  
- **Stable with Low-ESR Ceramic Capacitors** (≥1µF)  
- **Small SOT-23-5L Package** for space-constrained designs  

This information is strictly factual and sourced from STMicroelectronics' documentation.

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