LDO & Voltage Regulators | NCV4269

150 mA LDO Linear Voltage Regulator with Reset, Delay, Adjustable Reset and Early Warning

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Overview

The NCV4269 is a 5.0V precision micropower voltage regulator with an output current capability of 150mA. The output voltage is accurate within ±2.0% with a maximum dropout voltage of 0.5V at 100mA.

Microprocessor control logic includes an active reset output RO with delay and a SI/SO monitor which can be used to provide an early warning signal to the microprocessor of a potential impending reset signal. The use of the SI/SO monitor allows the microprocessor to finish any signal processing before the reset shuts the microprocessor down.

The active Reset circuit operates correctly at an output voltage as low as 1.0 V. The Reset function is activated during the power up sequence or during normal operation if the output voltage drops outside the regulation limits.
The reset threshold voltage can be decreased by the connection of an external resistor divider to the RADJ lead.

The regulator is protected against reverse battery, short circuit, and thermal overload conditions. The device can withstand load dump transients making it suitable for use in automotive environments.

  • Engine Control Unit
  • Powertrain
  • Body and Chassis
  • Industrial
  • Automotive
  • 5.0V +/- 2% Output with 150mA Output Current Capability
  • Internally Fused Leads in SOIC-14 and SOIC-20L Packages as well as SOIC-8 Exposed Pad
  • Adjustable Reset Threshold
    Active Reset Output Low Down to VQ=1.0V
  • Fault Protection:
    -42 V Reverse Voltage Protection
    Short Circuit Protection
    Thermal Overload Protection
  • Early Warning through SI/SO Leads
  • Very Low Dropout Voltage
  • AEC-Q100 Qualified

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