MicroPower Voltage Regulators with On/Off Control

Overview

The MC33264 series are micropower low dropout voltage regulators available in SO-8 and Micro-8 surface mount packages and a wide range of output voltages. These devices feature a very low quiescent current (100 µA in the ON mode; 0.1 µA in the OFF mode), and are capable of supplying output currents up to 100 mA. Internal current and thermal limiting protection is provided. They require only a small output capacitance for stability.

Additionally, the MC33264 has either active HIGH or active LOW control (Pins 2 and 3) that allows a logic level signal to turn-off or turn-on the regulator output.

Due to the low input-to-output voltage differential and bias current specifications, these devices are ideally suited for battery powered computer, consumer, and industrial equipment where an extension of useful battery life is desirable. MC33264 Features:

  • Low Quiescent Current (0.3 µA in OFF Mode; 95 µA in ON Mode)
  • Low Input-to-Output Voltage Differential of 47 mV at 10 mA, and 131 mV at 50 mA
  • Multiple Output Voltages Available
  • Extremely Tight Line and Load Regulation
  • Stable with Output Capacitance of Only 0.22 ?F for 4.0 V, 4.75 V
    and 5.0 V Output Voltages 0.33 ?F for 2.8 V, 3.0 V, 3.3 V and 3.8 V Output Voltages
  • Internal Current and Thermal Limiting
  • Logic Level ON/OFF Control
  • Functionally Equivalent to TK115XXMC and LP2980

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