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MC33283 Datasheet Versatile 6 Regulator Power Management Circuit

Manufacturer: onsemi

Overview: MC33283 Versatile 6 Regulator Power Management Circuit for Cellular Subscriber Terminal The MC33283 is a plete power management solution for portable devices such as telephone handsets, two−way radios, etc. Thanks to its large scale integration, the device offers up to seven Low DropOut regulators (LDO), two of them delivering a voltage higher than the battery’s. Despite the presence of an internal charge pump, the overall noise specification makes the circuit an ideal candidate where noise is an important feature. Outputs deliver 40mVRMS typical (10−100kHz) at nominal output current. With a 50dB ripple rejection under 10kHz, the circuit naturally shields the downstream electronics against DC choppy lines. This parameter guarantees a clean operation for battery operated devices.

Key Features

  • necessary to power future portable radios. Features:.
  • 6 regulated outputs: 2.85V, four outputs: 10.
  • 135mA 4.75V @ 15mA 5.0V @ 20mA.
  • Low.
  • noise: 40μVRMS at nominal output levels (10Hz.
  • 100kHz).
  • Ultra.
  • low reverse current in OFF mode (200nA typical).
  • Two.
  • mode regulator: output 5 switches from 3 to 5V with SEL pin activated.
  • Thermal shutdown for a rugged and reliable operation.
  • All outputs are short.
  • ci.

More Datasheets from onsemi

Part Number Description
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MC33283 Distributor