The SPX29501T5-3.3 is a low dropout (LDO) voltage regulator manufactured by Sipex Corporation. It is designed to provide a stable and regulated 3.3V output voltage from an input voltage as low as 3.5V. This regulator is characterized by its low dropout voltage, low quiescent current, and excellent transient response, making it suitable for a wide range of battery-powered and portable applications.

Applications

• Battery-powered systems
• Portable devices
• Microprocessor power supplies
• Post-regulation for switching power supplies
• Linear regulators

Features

• Low dropout voltage
• 3.3V fixed output voltage
• Low quiescent current
• Short-circuit protection
• Thermal shutdown protection
• Excellent transient response
• Stable with low ESR ceramic capacitors
• Available in various packages (e.g., TO-252, SOT-223)

Benefits

• Extends battery life with low quiescent current
• Provides stable and regulated 3.3V output voltage
• Protects the regulator and load from short circuits
• Prevents overheating with thermal shutdown protection
• Ensures stable operation with fast load changes
• Allows the use of small and inexpensive ceramic capacitors
• Offers flexibility in mounting options

Additional Details

The SPX29501T5-3.3 LDO regulator operates with a low dropout voltage, enabling it to maintain regulation even when the input voltage is close to the output voltage. This is especially beneficial in battery-powered systems where the battery voltage decreases as it discharges. The low quiescent current minimizes power consumption, further extending battery life. The regulator includes short-circuit and thermal shutdown protection, safeguarding the device and the connected load from damage. It is designed to be stable with low ESR ceramic capacitors, which are smaller and less expensive than other types of capacitors. The SPX29501T5-3.3 offers excellent transient response, ensuring stable operation even with rapid changes in load current. The regulator is available in various packages such as TO-252 and SOT-223. It is commonly used in a variety of applications where a stable and efficient 3.3V power supply is required.