SY8401ABC The Silergy SY8401ABC is a high-efficiency, asynchronous step-down DC-DC converter. It delivers 0.8A output current and operates over a wide input voltage range.
Mfr Part #:

SY8401ABC

Available from 1 distributors
Mfr Name: Silergy
Silergy
The Silergy SY8401ABC is a high-efficiency, asynchronous step-down DC-DC converter. It delivers 0.8A output current and operates over a wide input voltage range.
Total Stock: 1,794 pcs

SY8401ABC Available from 1 distributor

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SY8401ABC Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Mounting Type
Output Current
Package / Case
SVHC Present

SY8401ABC Description

Short technical summary and product information.

The Silergy SY8401ABC is an asynchronous step-down DC-DC converter designed for high efficiency. It is capable of delivering up to 0.8A of output current and operates over a broad input voltage range from 4.5V to 50V. The device utilizes current mode adaptive constant off-time control and integrates a main switch with low RDS(ON) to minimize conduction losses.

 

With a switching frequency of 1.2MHz, the SY8401ABC achieves low output voltage ripple and allows for small external inductor and capacitor sizes. Key features include internal soft-start to limit inrush current, hiccup mode output short circuit protection, and cycle-by-cycle peak current limit. It also offers EN ON/OFF control with an accurate threshold and a precise 0.6V ±1% reference voltage.

 

This regulator is suitable for various applications, including non-isolated telecommunication buck regulators, secondary high voltage post regulators, and automotive systems. It comes in a compact SOT23-6 package, making it ideal for space-constrained designs. The surface mount package type facilitates integration into printed circuit boards.

 

Applications for the SY8401ABC include non-isolated telecommunication buck regulators, secondary high voltage post regulators, and automotive systems. Its robust design and feature set make it a versatile choice for power management solutions.

SY8401ABC Quick Information

Product Type: DC-DC Switching Regulator
Canonical Name: SY8401ABC Asynchronous Step Down Regulator
Subcategory: Asynchronous Step Down Regulator

SY8401ABC Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

SY8401ABC Features

  • 0.8A output current capability.
  • Wide 4.5V to 50V input voltage range.
  • 1.2MHz pseudo constant switching frequency.
  • Low RDS(ON) internal power FET.
  • SOT23-6 package for surface mounting.

SY8401ABC Applications

  • Used in telecommunication buck regulators.
  • Suitable for secondary high voltage post regulators.
  • Designed for automotive systems.

SY8401ABC FAQs

7 frequently asked questions generated from this part’s specifications.
What is the input voltage range of the SY8401ABC?

The input voltage range is 4.5V to 50V.

What is the output current capability of the SY8401ABC?

The output current capability is 0.8A.

What is the switching frequency of the SY8401ABC?

The switching frequency is 1.2MHz.

What is the reference voltage of the SY8401ABC?

The reference voltage is 0.6V ±1%.

What is the RDS(ON) of the internal N-channel power FET?

The RDS(ON) is 700mΩ.

What is the package type of the SY8401ABC?

The package type is SOT23-6.

What is the absolute maximum supply input voltage?

The absolute maximum supply input voltage is 55V.

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