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LK112M33TR from ST,ST Microelectronics

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LK112M33TR

Manufacturer: ST

LOW NOISE LOW DROP VOLTAGE REGULATOR WITH SHUTDOWN FUNCTION

Partnumber Manufacturer Quantity Availability
LK112M33TR ST 2966 In Stock

Description and Introduction

LOW NOISE LOW DROP VOLTAGE REGULATOR WITH SHUTDOWN FUNCTION The **LK112M33TR** is a **low-dropout (LDO) voltage regulator** manufactured by **STMicroelectronics (ST)**. Below are its key specifications, descriptions, and features based on factual data:

### **Specifications:**
- **Output Voltage:** 3.3V (fixed)  
- **Output Current:** 500mA (max)  
- **Dropout Voltage:** 300mV (typical at 500mA load)  
- **Input Voltage Range:** Up to 12V  
- **Line Regulation:** 0.05%/V (typical)  
- **Load Regulation:** 0.4% (typical)  
- **Quiescent Current:** 5µA (typical in standby mode)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOT-23-5L  

### **Descriptions:**  
The **LK112M33TR** is a **low-power LDO regulator** designed for battery-powered and portable applications. It provides a stable **3.3V output** with low dropout voltage, making it suitable for systems requiring efficient power management.  

### **Features:**  
- **Low quiescent current** (ideal for battery-operated devices)  
- **Low dropout voltage** (enhances efficiency)  
- **Thermal shutdown and current limit protection**  
- **Stable with low-ESR ceramic capacitors**  
- **Fast transient response**  

This regulator is commonly used in **IoT devices, sensors, and portable electronics** where power efficiency is critical.  

(Note: For exact datasheet details, refer to STMicroelectronics' official documentation.)

Application Scenarios & Design Considerations

LOW NOISE LOW DROP VOLTAGE REGULATOR WITH SHUTDOWN FUNCTION

Alternative Part Number

  • AP2112K-3.3TRG1 --: Pin-compatible 3.3V low-dropout linear regulator in SOT-23-5 with similar current rating and low quiescent current, widely available and cost-effective.
  • MIC5205-3.3YM5-TR --: 3.3V LDO regulator in SOT-23-5 with comparable dropout and output current, a common drop-in style alternative to ST LK series regulators.
  • TLV70233PDBVR --: 3.3V low-dropout regulator in SOT-23-5 with low quiescent current and stable performance, suitable replacement when layout and pinout match.

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