Manufacturer Part Number
LT1521IST-5#TRPBF
Manufacturer
Analog Devices
Introduction
The LT1521IST-5#TRPBF is a low dropout linear voltage regulator designed for power management applications.
Product Features and Performance
Positive fixed 5V output voltage regulator
Maximum input voltage of 20V
Low dropout voltage of 0.75V at 300mA load
Output current capability of 300mA
Low quiescent current of 25µA
High PSRR of 58dB at 120Hz
Surface Mount TO-261-4, TO-261AA package
Product Advantages
Efficient low-power operation
High power supply rejection ratio for stable output
Low dropout voltage for improved efficiency
Multiple protection features enhance safety
Key Technical Parameters
Number of Regulators: 1
Voltage Input (Max): 20V
Voltage Output (Min/Fixed): 5V
Voltage Dropout (Max): 0.75V @ 300mA
Current Output: 300mA
Current Quiescent (Iq): 25µA
Current Supply (Max): 12mA
Power Supply Rejection Ratio (PSRR): 58dB @ 120Hz
Quality and Safety Features
Over Current Protection
Over Temperature Protection
Reverse Polarity Protection
Compatibility
SOT-223-3 device package compatible with surface mount technologies
Application Areas
Consumer Electronics
Telecommunications
Computer Systems
Industrial Controls
Product Lifecycle
Product Status: Active
Ongoing support and production, no near-term discontinuation indicated
Several Key Reasons to Choose This Product
High reliability in various temperature ranges (-40°C to 125°C)
Tailored for power-sensitive applications with low quiescent current
Robust protection features add to system safety
High PSRR ensures stable voltage supply in noisy environments
Ideal for compact designs due to small form factor SOT-223 package