Manufacturer Part Number
L4949EDTR-E
Manufacturer
stmicroelectronics
Introduction
The L4949EDTR-E is a Low Drop Out (LDO) regulator designed specifically for automotive applications. It is part of the power management integrated circuits and is optimized for low dropout voltage and quiescent current.
Product Features and Performance
Positive output configuration
Fixed output type
Designed for a single regulator
Maximum input voltage of 28V
5V fixed minimum output voltage
Maximum dropout voltage of 0.5V at 100mA load
Supports output current of up to 100mA
Very low quiescent current of 300 µA
Maximum supply current of 5mA
Incorporates reset control feature
Over temperature and short circuit protection
Product Advantages
Low dropout voltage enhances efficiency
Low quiescent current for energy saving
High temperature operational range suitable for automotive environments
Built-in protection features ensure reliability and safety
Key Technical Parameters
Voltage Input (Max): 28V
Voltage Output (Min/Fixed): 5V
Voltage Dropout (Max): 0.5V @ 100mA
Current Output: 100mA
Current Quiescent (Iq): 300 µA
Current Supply (Max): 5 mA
Quality and Safety Features
Over Temperature Protection
Short Circuit Protection
AEC-Q100 qualification for automotive standards
Compatibility
Surface Mount 8-SOIC (0.154", 3.90mm Width)
Compatible with automotive electronic systems
Application Areas
Automotive power management
Applications requiring stable 5V supply with low dropout
Product Lifecycle
Currently active
Not nearing discontinuation, with ongoing support and production
Several Key Reasons to Choose This Product
High efficiency and low power consumption suitable for automotive applications
Robust protection features ensuring long-term reliability
AEC-Q100 qualification indicates high quality automotive standard compliance
Extended operating temperature range fit for harsh environments
Available in a compact surface-mount package for easy integration into various designs