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MAX8887 - 300mA Linear Regulators

Description

The MAX8887/MAX8888 low-dropout linear regulators operate from a 2.5V to 5.5V input and deliver up to 300mA continuous (500mA pulsed) current.

The MAX8887 is optimized for low-noise operation, while the MAX8888 includes an open-drain POK ouput flag.

Features

  • include a micropower shutdown mode, short-circuit protection, thermal shutdown protection, and an active-low open-drain power-OK (POK) output that indicates when the output is out of regulation. The MAX8887/MAX8888 are available in a thin 5-pin SOT23 package that is only 1mm high. Features o Guaranteed 300mA Output Current (500mA for Pulsed Loads) o Low 100mV Dropout at 200mA Load o POK Output (MAX8888) o 42µVRMS Output Noise (MAX8887) o Preset Output Voltages (1.5V, 1.8V, 2.85V, and 3.3V) o 55.

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Datasheet Details

Part number MAX8887
Manufacturer Maxim
File Size 238.84 KB
Description 300mA Linear Regulators
Datasheet download datasheet MAX8887 Datasheet
Additional preview pages of the MAX8887 datasheet.

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Full PDF Text Transcription

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19-1859; Rev 1; 12/01 Low-Dropout, 300mA Linear Regulators in SOT23 General Description The MAX8887/MAX8888 low-dropout linear regulators operate from a 2.5V to 5.5V input and deliver up to 300mA continuous (500mA pulsed) current. The MAX8887 is optimized for low-noise operation, while the MAX8888 includes an open-drain POK ouput flag. Both regulators feature exceptionally low 100mV dropout at 200mA. These devices are available in a variety of preset output voltages in the 1.5V to 3.3V range. An internal PMOS pass transistor allows the low 55µA supply current to remain independent of load, making these devices ideal for portable battery-powered equipment such as personal digital assistants (PDAs), cellular phones, cordless phones, and notebook computers.
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