Manufacturer Part Number
LT1121IST-5#TRPBF
Manufacturer
Analog Devices
Introduction
A high-performance, low dropout linear regulator designed for power management applications.
Product Features and Performance
Low Dropout Voltage: 0.7V @ 150mA load
Fixed 5V output voltage
Supports up to 30V input voltage
Low quiescent current: 50 µA
Output current capacity: 150mA
High PSRR: 58dB at 120Hz
Over-temperature and reverse polarity protection
Operating temperature range: -40°C to 125°C
Product Advantages
Minimal power loss due to low dropout voltage
Efficient operation with low quiescent current
High level of output voltage accuracy and stability
Built-in safety features for enhanced reliability
Key Technical Parameters
Voltage Input (Max): 30V
Voltage Output (Min/Fixed): 5V
Voltage Dropout (Max): 0.7V @ 150mA
Current Output: 150mA
Current Quiescent (Iq): 50 µA
PSRR: 58dB (120Hz)
Quality and Safety Features
Overtemperature protection ensures safe operation under high-temperature conditions
Reverse polarity protection prevents damage from incorrect power supply connection
Compatibility
Surface mount package SOT-223-3 compatible with standard PCB manufacturing processes
Application Areas
Power management for IoT devices
Automotive electronics
Portable and battery-operated devices
Telecommunications
Product Lifecycle
Status: Active
No indication of nearing discontinuation
Availability of replacements or upgrades not specified but typically available within Analog Devices’ product range
Several Key Reasons to Choose This Product
High reliability and robustness under wide temperature ranges
Low dropout voltage ensures efficient use of input power
Features like low quiescent current and high PSRR improve overall system performance
Safety and protection features offer peace of mind in various application environments
Suitable for a wide range of applications due to its versatile input voltage specifications and compact package