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AF1210B - Step-Down Converter

Download the AF1210B datasheet PDF. This datasheet also covers the AF1210B-Alfa variant, as both devices belong to the same step-down converter family and are provided as variant models within a single manufacturer datasheet.

General Description

AF1210B consists of step-down switching regulator with PWM control.

These devices include a reference voltage source, oscillation circuit, error amplifier, internal PMOS and etc.

AF1210B provides low-ripple power, high efficiency, and excellent transient characteristics.

Key Features

  • as low current consumption. Since this converter can accommodate an input voltage up to 40V, it is also suitable for the operation via an AC adapter. Features Input voltage: 4.2V to 40V. Output voltage: 0.8V to VIN. Duty ratio: 0% to 100% PWM control Oscillation frequency: 150KHz typ. Soft-start, Current limit, Enable function Thermal Shutdown function Built-in internal P-channel MOS SOP-8P Package.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (AF1210B-Alfa-MOS.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number AF1210B
Manufacturer Alfa-MOS
File Size 132.99 KB
Description Step-Down Converter
Datasheet download datasheet AF1210B Datasheet

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Other Datasheets by Alfa-MOS

Part Number Description
AF1210 Step-Down Converter
AF1210A Step-Down Converter
AF1202 Step-Down Converter
AF1202A Step-Down Converter
AF1205 Step-Down Converter

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.

View original datasheet text
Alfa-MOS Technology AF1210B 150KHz, 3.5A / 40V Step-Down Converter General Description AF1210B consists of step-down switching regulator with PWM control. These devices include a reference voltage source, oscillation circuit, error amplifier, internal PMOS and etc. AF1210B provides low-ripple power, high efficiency, and excellent transient characteristics. The PWM control circuit is able to very the duty ratio linearly from 0 up to 100%. This converter also contains an error amplifier circuit as well as a soft-start circuit that prevents overshoot at startup. An enable function, an over current protect function and a short circuit protect function are built inside, and when OCP or SCP happens, the operation frequency will be reduced from 150KHz to 30KHz.