Texas Instruments 7805 Fixed Linear Voltage Regulator, 5V 0.5A SOT-223-3

The UA78M05IDCY is a fixed output, three terminal positive voltage regulator from Texas Instruments, housed in a compact 4‑pin SOT-223 surface mount package. This linear regulator is designed for a wide range of applications, providing a stable 5V output for powering sensitive circuitry and ensuring clean, regulated power supply.

Key features include internal current limiting and thermal shutdown protection, making the device inherently robust against overload conditions. The regulator delivers an output current of up to 500mA and accepts an input voltage range from 7V to 25V, making it versatile for various supply rail configurations.

Benefits & Features

• Fixed 5V output voltage for reliable, consistent performance.
• Output current capability up to 500mA suitable for many low-power devices.
• Wide input voltage range from 7V to 25V accommodates varied power sources.
• Low dropout voltage of just 2V, ensuring efficient operation.
• Output transistor safe-area compensation enhances reliability.
• Operating temperature range from -40°C to 125°C for demanding environments.
• No external components required – simplifies design and reduces BOM cost.
• High power dissipation capability for robust thermal management.

Applications

This regulator is ideal for on-card regulation, eliminating noise and distribution problems associated with single-point regulation. It is well-suited for power management, portable devices, and communications networking equipment.

Specifications

• Output Type: Fixed
• No. of Outputs: 1
• Output Voltage Nominal: 5V
• Input Voltage Min: 7V
• Input Voltage Max: 25V
• Max Output Current: 500mA
• IC Case / Package: SOT-223-3 (as per title)
• No. of Pins: 3
• IC Mounting: Surface Mount
• Operating Temperature Min: -40°C
• Operating Temperature Max: 125°C

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