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TC57

EOL

Status: End of Life

Features:

  • •Low Dropout Voltage •100 mV at 650 mA with FZT749 PNP Transistor •2.7V to 8V Supply Range •Low Operating Current: 50 µA Operating; 0.2 µA Shutdown •Low-True Chip Enable •High Output Accuracy (±2% typical)
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Device Overview

Summary

The TC57 is a low dropout regulator controller that operates with an external PNP pass transistor, allowing the user to tailor the LDO characteristics to suit the application at hand. This results in lower dropout operation (and often lower cost) compared with traditional linear regulators with on-board pass transistors. The maximum output current of a TC57-based regulator circuit is limited only by the charac-teristics of the external pass transistor. For example, a maximum output current of 650 mA (with a dropout voltage of 100 mV) results when an FZT749 pass transistor is used, while a Darlington configuration can deliver up to 4A. Flexibility, and superior performance make this family of regulator controllers the ideal choice in applications where low dropout voltage and low installed cost are key.

Additional Features
  • Low Dropout Voltage
  • 100 mV at 650 mA with FZT749 PNP Transistor
  • 2.7V to 8V Supply Range
  • Low Operating Current: 50 µA Operating; 0.2 µA Shutdown
  • Low-True Chip Enable
  • High Output Accuracy (±2% typical)

Documents

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Data Sheet

02/05/2013
214KB

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