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MAX689 - High-Accuracy / Low-Dropout Linear Regulators

Download the MAX689 datasheet PDF. This datasheet also covers the MAX687 variant, as both devices belong to the same high-accuracy / low-dropout linear regulators family and are provided as variant models within a single manufacturer datasheet.

General Description

The MAX687/MAX688/MAX689 low-dropout linear regulators operate with an input-to-output voltage differential limited only by an external PNP transistor.

Outputs are fixed at 3.3V (MAX687/MAX688) or 3.0V (MAX689).

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (MAX687_MaximIntegratedProducts.pdf) that lists specifications for multiple related part numbers.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
19-0329; Rev 0; 12/94 EVFAOLLULAOTWIOSNDKAITTAMSAHNEUEATL High-Accuracy, Low-Dropout Linear Regulators MAX687/MAX688/MAX689 _______________General Description The MAX687/MAX688/MAX689 low-dropout linear regulators operate with an input-to-output voltage differential limited only by an external PNP transistor. Outputs are fixed at 3.3V (MAX687/MAX688) or 3.0V (MAX689). The only external components required are a PNP pass transistor and output, compensation, and bypass capacitors. Base drive to the external transistor is at least 10mA, permitting output currents to exceed 1A when using high-gain transistors (β > 100). Output current limiting is implemented by limiting the external transistor’s base current. Output voltage monitoring and shutdown functions are included. The 3.