WMSIC Electronic Components

Silergy SY8081DQC

ModelSY8081DQC
PackageDFN-6(1.5x1.5)
BrandSILERGY
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
silergy SY8081DQC
Type
SILERGY
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SILERGY
Electronic Component
SY8081DQC
Electronic Component
1
Package
DFN-6(1.5x1.5)
Electronic Component
DC-DC Power Supply IC
Electronic Component
0.041g
Electronic Component
1
Features
Output
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0264678783
Operating Temperature
40℃~+85℃
Operating Voltage
2.5V~5.5V
Switching Frequency
2.5MHz
Electronic Component
Electronic Component

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

SY8081DQC 产品概述

一、产品简介

SY8081DQC 是矽力杰(silergy)推出的一款高集成度降压型开关稳压器,采用降压(Buck)拓扑、内置功率开关,并集成同步整流。器件工作电压范围为 2.5V 至 5.5V,最大输出电流 1A,开关频率高达 2.5MHz,静态电流仅 40µA。器件封装为小尺寸 DFN-6(1.5mm × 1.5mm),工作温度范围 -40℃ 至 +85℃,支持可调输出并具备轻载高效模式与输出放电功能,适合对体积、效率与待机功耗有严格要求的便携与嵌入式应用。

二、关键性能参数

  • 功能类型:降压型(Buck)
  • 输入电压范围:2.5V ~ 5.5V
  • 最大输出电流:1A
  • 开关频率:2.5MHz
  • 静态电流(Iq):40µA(低静态功耗,适合电池供电)
  • 同步整流:支持(提高效率、降低热量)
  • 输出类型:可调(通过外部反馈电阻设置目标电压)
  • 输出通道数:单路
  • 开关管:内置(无需外部功率 MOSFET)
  • 功能特性:轻载高效模式、输出放电
  • 工作温度:-40℃ ~ +85℃
  • 封装:DFN-6(1.5mm × 1.5mm)
  • 品牌:矽力杰(silergy)

三、主要功能与优势

  • 高集成度:内置功率开关与同步整流,减小外部器件数目与 PCB 面积,简化系统设计。
  • 高频开关:2.5MHz 的工作频率使外部电感与电容值可显著减小,有利于整机体积压缩,同时有利于快速瞬态响应。
  • 低静态电流:40µA 的静态电流在待机或轻载时能有效降低系统平均功耗,适合电池供电设备。
  • 轻载高效模式:在轻载或待机条件下自动进入高效模式,进一步提升轻载效率,延长电池寿命。
  • 输出放电:当器件禁能或关断时,输出放电功能可快速将输出电容放电至设定电平,避免系统复位不确定性或延迟。
  • 宽温区适应:-40℃ 至 +85℃ 的工业级温度范围,保证在多种工作环境下的稳定性与可靠性。

四、典型应用场景

  • 便携式电子设备:手持终端、蓝牙音箱、便携式医疗器械等,对体积与能耗有严格控制。
  • 电池供电系统:单节锂电池供电的 IoT 设备、传感器节点、可穿戴设备等。
  • 消费类与工业控制:微控制器(MCU)主供电、外围模拟/数字电路的低压稳压供电。
  • 点位式电源管理:需要快速上电/断电以及保证输出快速放电的系统。

五、设计与选型建议

  • 外围元件选型:由于工作频率高,建议选用低 ESR 的输入/输出电容(陶瓷电容为优选),电感选择适配 1A 持续电流且具备低直流电阻(DCR)以减少功耗与温升。电感值选择需兼顾输出纹波、瞬态响应与效率。
  • 散热与布局:DFN-6 小封装要求良好 PCB 散热设计,建议在器件底部焊盘与周围放置足够的铜箔,尽量缩短高电流回路(输入电容—开关—电感—输出电容)的走线长度,输入电容靠近 VIN 与 GND 引脚布置以抑制尖峰电流与 EMI。
  • 输出设置:通过外部反馈电阻器实现可调输出电压,注意 FB 引脚的参考精度与补偿匹配,必要时按数据手册加入补偿元件以保证环路稳定。
  • EMI 考量:高频开关有利于缩小被动件,但可能增加高频噪声。采取合理的地线分割、输入滤波与布局优化可降低电磁干扰。
  • 保护与可靠性:若应用对短路、过温、过压有高要求,可在系统层面增加额外保护(如熔断、过流检测等)。

六、封装与可制造性

DFN-6(1.5mm × 1.5mm)小体积封装方便在空间受限的产品中使用,但对焊接与回流工艺要求较高,建议在 PCB 设计阶段预留合适的热焊盘与丝印,便于检修与定位。

七、总结

SY8081DQC 以其高集成度、低静态功耗、高开关频率与同步整流设计,为需要小体积、高效率与低待机功耗的电源方案提供了良好选择。通过合理的外围器件选型与 PCB 布局,可以在便携设备、IoT 节点和多种消费与工业应用中实现稳定且高效的降压电源管理。若需开发样机或量产,请参考厂商完整数据手册获取详细引脚定义、推荐外设元件与 PCB 布局示意,以确保设计一次成功。

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