The SPX3819M5/TR is a low-dropout (LDO) voltage regulator from Sipex Corporation (now part of MaxLinear). It's designed to provide a stable and regulated output voltage from a higher input voltage, even when the input voltage is close to the desired output voltage. The /TR suffix typically indicates that it is supplied in tape and reel packaging.

Applications

• Portable Devices
• Battery-Powered Equipment
• Post-Regulation for Switching Power Supplies
• Microcontroller Power Supplies
• General-Purpose Regulation

Features

• Low dropout voltage
• Low quiescent current
• Overcurrent protection
• Thermal shutdown protection
• Fixed and adjustable output voltage options available
• Small package size

Benefits

• Extends battery life in portable applications due to low quiescent current.
• Provides stable output voltage even with varying input voltage and load conditions.
• Protects the regulator and downstream circuitry from damage due to overcurrent or overheating.
• Saves board space due to its small package size.

Additional Details

The SPX3819M5/TR is available in a small SOT-23-5 package. The low dropout voltage allows the regulator to operate with a minimal difference between the input and output voltages, maximizing efficiency. It's important to check the specific datasheet for the exact output voltage options, input voltage range, and other specifications. The thermal shutdown feature protects the regulator from damage in the event of excessive heat generation. The overcurrent protection limits the output current to prevent damage to the regulator and the load.

The device is ideal for battery powered applications where stable voltage and low current consumption are desired.