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A7210 - PWM/PFM STEP-DOWN DC-DC CONVERTER

General Description

The A7210 is a CMOS-based PWM step-down DC-DC Controller.

The device offers the following advantages: lower supply current and wider operating input-voltage range.

Key Features

  • Range of Input Voltage: 3V ~ 16V.
  • Built-in Soft-start Function and Protection Function(Reset type protection).

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Datasheet Details

Part number A7210
Manufacturer AiT Semiconductor
File Size 323.82 KB
Description PWM/PFM STEP-DOWN DC-DC CONVERTER
Datasheet download datasheet A7210 Datasheet

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A7211 1A SYNCHRONOUS STEP-DOWN CONVERTER
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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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AiT Semiconductor Inc. www.ait-ic.com A7210 PWM/PFM STEP-DOWN DC-DC CONVERTER DESCRIPTION The A7210 is a CMOS-based PWM step-down DC-DC Controller. The device offers the following advantages: lower supply current and wider operating input-voltage range. The A7210 consists of an oscillator, a PWM control circuit, a reference voltage unit, an error amplifier, a soft-start circuit, a protection circuit, a PWM/PFM alternative circuit, a Chip Enable circuit, and under voltage lockout circuit. A low ripple, high efficiency step-down DC-DC converter can be easily composed of this IC. Output Voltage can be adjusted with external resistors. The A7210 uses voltage type PWM/PFM mixed operation mode. When the load current is small, the operation will switch into the PFM mode from PWM mode.