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MC33283 - Versatile 6 Regulator Power Management Circuit

General Description

Input Pin # ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ1 ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ2 ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ3 ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ4 ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ5 ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ6 ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ7 ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁ

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.

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Datasheet Details

Part number MC33283
Manufacturer onsemi
File Size 458.03 KB
Description Versatile 6 Regulator Power Management Circuit
Datasheet download datasheet MC33283 Datasheet

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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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MC33283 Versatile 6 Regulator Power Management Circuit for Cellular Subscriber Terminal The MC33283 is a complete 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.