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LTC3245 - 250mA Buck-Boost Charge Pump

General Description

The LTC®3245 is a switched capacitor buck-boost DC/DC converter that produces a regulated output (3.3V, 5V or adjustable) from a 2.7V to 38V input.

The device uses switched capacitor fractional conversion to maintain regulation over a wide range of input voltage.

Key Features

  • n 2.7V to 38V VIN Range n IQ = 18µA Operating; 4μA in Shutdown n 12V to 5V Efficiency = 81% n Multimode Operation (2:1, 1:1, 1:2) with Automatic Mode Switching n Low Noise, Constant Frequency Operation n Pin Selectable Burst Mode® Operation n VOUT: Fixed 3.3V, 5V or Adjustable (2.5V to 5V) n IOUT Up to 250mA n Overtemperature and Short-Circuit Protection n Operating Junction Temperature: 150°C Maximum n Thermally Enhanced 12-Lead MSOP and Low Profile 12-Pin (3mm × 4mm) DFN Packages n AEC-Q100 Qu.

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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.

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LTC3245 Wide VIN Range, Low Noise, 250mA Buck-Boost Charge Pump FEATURES n 2.7V to 38V VIN Range n IQ = 18µA Operating; 4μA in Shutdown n 12V to 5V Efficiency = 81% n Multimode Operation (2:1, 1:1, 1:2) with Automatic Mode Switching n Low Noise, Constant Frequency Operation n Pin Selectable Burst Mode® Operation n VOUT: Fixed 3.3V, 5V or Adjustable (2.