SY8284B Datasheet PDF - Silergy 23V Input Synchronous Step Down Regulator Specs

SY8284B - 23V Input Synchronous Step Down Regulator

Datasheet Summary

Description

The SY8284B develops a high efficiency synchronous step-down DC/DC regulator capable of delivering 4A current.

The device integrates main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss.

Features

Low RDS(ON) for Internal Switches (top/bottom): 85/35 mΩ.
Wide Input Voltage Range: 4~23V.
Integrated Bypass Switch: 1.5Ω.
Instant PWM Architecture to Achieve Fast Transient Responses.
Internal 1.2ms Soft-start Limits the Inrush Current.
Pseudo-constant Frequency: 600kHz.
Fixed 3.338V Output Voltage.
4A Output Current Capability.
100mA LDO Current Capability.
±1% Internal Reference Voltage.
Power.

Datasheet Details

Part number	SY8284B
Manufacturer	Silergy
File Size	279.88 KB
Description	23V Input Synchronous Step Down Regulator
Datasheet	SY8284B Datasheet
Additional preview pages of the SY8284B datasheet.

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Full PDF Text Transcription

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SY8284B High Efficiency Fast Response, 4A, 23V Input Synchronous Step Down Regulator General Description The SY8284B develops a high efficiency synchronous step-down DC/DC regulator capable of delivering 4A current. The device integrates main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss. In addition, it operates at pseudoconstant frequency of 600kHz under heavy load conditions to minimize the size of inductor and capacitor. SY8284B also provides a fixed 3.3V LDO with 100mA current capability, which can be used to power the external peripheries, such as the keyboard controller in notebook. The 3.3V LDO can switch over to Buck regulator output to save power loss.

Published: Dec 28, 2024 |