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AMS2576 - step-down switching regulators

General Description

The AMS2576 Series are step-down switching regulators with all required active functions.

It is capable of driving 3A load with excellent line and load regulations.

These devices are available in fixed output voltages of 3.3V, 5V, 12V and an adjustable output version.

Key Features

  • ‹ 3.3V, 5V, 12Vand adjustable versions ‹ Wide input voltage range, up to 40V ‹ Internal oscillator of 52KHz fixed frequency ‹ Guaranteed 3A output current ‹ Wide adjust version output voltage range from 1.23V to 37V ±4% max. at over line and load conditions ‹ Low standby current, typ. 80µA, at shutdown mode ‹ Requires only 4 external components ‹ Thermal shutdown and current limit protection.

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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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1 Advanced Monolithic Systems http://www.ams-semitech.com 3A Step-Down Voltage Regulator GENERAL DESCRIPTION The AMS2576 Series are step-down switching regulators with all required active functions. It is capable of driving 3A load with excellent line and load regulations. These devices are available in fixed output voltages of 3.3V, 5V, 12V and an adjustable output version. The AMS2576 series offers a high-efficiency replacement for popular three-terminal linear regulators. Also it requires a minimum number of external components. It substantially not only reduces the area of board size but also the size of heat sink, and in some cases no heat sink is required. The ±4% tolerance on output voltage within specified input voltages and output load conditions is guaranteed.