onsemi MC79M05CDTRKG: A Robust -5V Fixed Linear Regulator for Demanding Applications

In the realm of power management, the need for stable and reliable negative voltage rails is critical for a wide array of analog and mixed-signal circuits. The onsemi MC79M05CDTRKG stands out as a quintessential solution, providing a fixed -5V output with exceptional performance. This negative voltage regulator is engineered to deliver a dependable power source for applications ranging from operational amplifier systems to data acquisition interfaces.

Housed in the space-efficient and thermally capable TO-252-3 (DPAK) package, this regulator is designed for robustness and ease of board mounting. Its package offers an excellent balance between physical size and heat dissipation, allowing it to handle continuous output currents of up to 500mA without requiring an external pass transistor. This makes it an ideal choice for designs where board real estate is at a premium but performance cannot be compromised.

As a member of the classic 79Mxx series, the MC79M05CDTRKG incorporates internal current limiting, thermal shutdown, and safe-area compensation. These built-in protection features safeguard the device and the load against potential damage from overcurrent conditions and excessive junction temperatures. The regulator's low dropout (LDO) characteristics ensure that the output voltage is maintained with a minimal headroom between the input and output, enhancing overall system efficiency.

Typical applications are extensive, including use as a negative bias supply for op-amps, in audio amplifiers, and in various industrial control systems where a clean, negative voltage rail is mandatory. Its ability to be used with minimal external components—often just a pair of input and output capacitors—simplifies circuit design and reduces the total bill of materials cost.

ICGOOODFIND: The onsemi MC79M05CDTRKG is a highly reliable, monolithic negative voltage regulator that delivers a stable -5V output. Its robust protection features, substantial 500mA current output, and industry-standard DPAK package make it a superior and practical choice for powering negative voltage requirements across consumer, industrial, and automotive electronics.

Keywords:

Negative Voltage Regulator

-5V Fixed Output

500mA Current

TO-252-3 Package

Linear Regulator (LDO)