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AP3401 - 1A STEP-DOWN DC - DC BUCK CONVERTER

Description

The AP3401 is a 1A step-down DC-DC converter.

At heavy load, the constant-frequency PWM control performs excellent stability and transient response.

No external compensation components are required.

Features

  • include over-temperature and short circuit protection, and under-voltage lockout to prevent deep battery discharge. The AP3401 delivers 1A maximum output current while consuming only 40μA of no-load quiescent current. Ultra-low RDS(ON) integrated MOSFETs and 100% duty cycle operation make the AP3401 an ideal choice for high output voltage, high current.

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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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NEW PRODUCT AP3401 1.5MHZ, 1A STEP-DOWN DC - DC BUCK CONVERTER Description The AP3401 is a 1A step-down DC-DC converter. At heavy load, the constant-frequency PWM control performs excellent stability and transient response. No external compensation components are required. Pin Assignments (Top View) Pin 1 Mark The AP3401 supports a range of input voltages from 2.5V to 5.5V, allowing the use of a single Li+/Li-polymer cell, multiple Alkaline/NiMH cell, and other standard power sources. The output voltage is adjustable from 0.6V to the input voltage. The AP3401 employs internal power switch and synchronous rectifier to minimize external part count and realize high efficiency. During shutdown, the input is disconnected from the output and the shutdown current is less than 1μA.
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