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MAX8840 - ultra-low-noise low-dropout linear regulators

General Description

The MAX8840/MAX8841/MAX8842 ultra-low-noise, lowdropout (LDO) linear regulators are designed to deliver up to 150mA continuous output current.

These regulators achieve a low 120mV dropout for 120mA load current.

Key Features

  • Space-Saving 1.0mm x 1.5mm x 0.8mm µDFN.
  • 11µVRMS Output Noise at 100Hz to 100kHz Bandwidth (MAX8840).
  • 78dB PSRR at 1kHz (MAX8840).
  • 120mV Dropout at 120mA Load.
  • Stable with 1µF Ceramic Capacitor for Any Load.
  • Guaranteed 150mA Output.
  • Only Need Input and Output Capacitors (MAX8841).
  • Output Voltages: 1.5V, 1.8V, 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 3V, 3.3V, 4.5V (MAX8840/MAX8841) and Adjustable (MAX8842).
  • Low 40µA Ground C.

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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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www.DataSheet4U.com 19-0629; Rev 0; 10/06 Ultra-Low-Noise, High PSRR, Low-Dropout, 150mA Linear Regulators in µDFN General Description The MAX8840/MAX8841/MAX8842 ultra-low-noise, lowdropout (LDO) linear regulators are designed to deliver up to 150mA continuous output current. These regulators achieve a low 120mV dropout for 120mA load current. The MAX8840 uses an advanced architecture to achieve ultra-low output voltage noise of 11µVRMS and PSRR of 54dB at 100kHz. The MAX8841 does not require a bypass capacitor, hence achieving the smallest PC board area. The MAX8842 output voltage can be adjusted with an external divider. The MAX8840/MAX8841 are preset to a variety of voltages in the 1.5V to 4.5V range.