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The LT3050EDDB-3.3 is a low-power, low-noise, low-dropout linear regulator (LDO). This chip provides an output current of 100mA with a low dropout voltage of 340mV, making it suitable for a variety of power management applications. It also features precise current limiting and diagnostic functions, making it ideal for applications requiring high reliability and protection features.

LT3050EDDB-3.3 Features and Specifications

1. High-Precision Voltage Regulation

Fixed Output Voltage: 3.3V ±2% (over the full temperature range)

Low Dropout Voltage: 340mV @ 100mA (typical)

Low quiescent current: 90μA (typical)  

2. Intelligent Diagnostic Features  

Current monitoring output: Provides monitoring current via IOUT/100  

Fault indication: Detects overcurrent, undercurrent, and over-temperature conditions  

3. Wide Operating Range  

Input voltage: 1.6V to 45V  

Operating temperature: -40°C to +125°C  

4. Protection Features

Overcurrent protection: Programmable current limit with ±5% accuracy  

Over-temperature protection: Thermal shutdown function  

Reverse polarity protection: Prevents damage from reverse connection

LT3050EDDB-3.3 Specifications  

Input voltage range: 1.6V to 45V  

Output voltage: 3.3V (fixed)  

Output current: 100mA

Dropout voltage: 340mV @ 100mA (typical)  

Quiescent current: 90μA (typical)  

Output noise: 30μVRMS (10Hz to 100kHz)  

PSRR: 70dB @ 120Hz  

Operating temperature: -40°C to +125°C  

Package: 12-DFN (3mm × 2mm)

LT3050EDDB-3.3 Applications

Protected antenna power supply

Automotive infotainment systems

Industrial applications (trucks, forklifts, etc.)

High-reliability applications

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