MCP1253-ADJ Datasheet

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  MCP1252/53 Datasheet


The MCP1253-ADJ is an inductorless, positive regulating, low noise charge pump DC-to-DC converter. It has an adjustable output of either 1.5V to 5.0V and can deliver 120mA of load current at the desired regulated output voltage. Since the device incorporates an automatic buck/boost feature, it will maintain the regulated output voltage whether the input voltage is above or below the output voltage. The MCP1252 operates at a switching frequency of 1.0MHZ and features a power-good pin that monitors out-of-regulation conditions.
Parameter Name  Value
Typical Active Output Current (mA)  120
Output Voltage (V)  Selectable 3.3V or 5.0V
Typical Quiescent Current (µA)  80
Input Voltage Range (V)  2.0 to 5.5
Operating Temp. Range (°C)  -45 to 85
Device Description  Regulated

     Features
Shutdown Control to minimize current drain during stand-by conditions Logic level shutdown mode 2.0V to 5.5V input voltage range -40 C to +85 C operation Power-good output indicator with hysteresis Thermal shutdown protection with hysteresis Short circuit protection 2.1/2.7 to 5.5, 2.0 to 5.5 Selectable 3.3V or 5.0V or Adjustable 1.5V to 5.5V


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