Texas Instruments 3.3V 400mA Fixed Voltage Regulator SOT-223-4

The Texas Instruments 3.3V 400mA Fixed Voltage Regulator is a positive voltage regulator with a fixed 3.3V output and a maximum output current of 400mA, designed to convert a common 5V logic supply or higher input voltages down to a stable 3.3V supply.

Overview

The regulator accepts input voltages from 4.75V to 26V and is intended to power very-large-scale integration (VLSI) ASICs and microcontrollers across a wide range of electronic applications. Its circuitry is designed to minimise quiescent current, drawing 10mA typically when supplying 500mA of load current with an input-to-output differential greater than 5V. An output bypass capacitor is required for stability, and integrated compensation allows operation with low ESR chip capacitors within an ESR range of 0.01Ω to 5Ω.

Key Features

• Internal short circuit and thermal overload protection
• Reverse battery input protection
• 60V input transient protection
• Output trimmed for 5% tolerance under all operating conditions
• Surface-mounted in a compact SOT-223-4 package
• Operating temperature range of -40°C to +85°C
• Free from antimony and bromine

Applications

Typical applications include automotive systems, industrial controls, automation, process control, and power management, as well as other applications requiring a dependable 3.3V supply from a higher input voltage.

Choose the Texas Instruments 3.3V 400mA Fixed Voltage Regulator when a stable 3.3V rail is needed from a 5V or higher input supply in a surface-mount SOT-223-4 package.