WMSIC Electronic Components

Silergy SY8511BADC

ModelSY8511BADC
PackageTSOT-23-6
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
silergy SY8511BADC
Type
SILERGY
Minimum package
3000 个

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SILERGY
Electronic Component
SY8511BADC
Electronic Component
1
Package
TSOT-23-6
Electronic Component
DC-DC Power Supply IC
Electronic Component
0.046g
Electronic Component
1
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0230007070
Operating Temperature
40℃~+125℃
Operating Voltage
4.5V~100V
Switching Frequency
200kHz
Electronic Component
Electronic Component
Output Current
1.2A

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

SY8511BADC 产品概述

一、产品简介

SY8511BADC 是矽力杰(silergy)推出的一款降压型开关稳压器,采用降压拓扑设计,集成开关管(内置),适用于宽输入电压场合。器件工作电压范围为 4.5V ~ 100V,可提供最高 1.2A 的连续输出电流,开关频率 200kHz,输出可调,单通道设计,封装为 TSOT-23-6,工作温度范围 -40℃ ~ +125℃。芯片静态电流仅 150μA,适合对待机功耗有要求的应用。

二、主要特点

  • 宽输入电压:4.5V 至 100V,适应高压工况与各种电源母线。
  • 输出能力:最大连续输出电流 1.2A,满足中小功率供电需求。
  • 开关性能:固定开关频率 200kHz,有利于外部元件尺寸与 EMI 的折中。
  • 低静态电流:Iq = 150μA,有利于低待机功耗的系统设计。
  • 同步整流:否(为异步降压),需外接肖特基二极管以获得较高效率。
  • 输出类型:外部电阻可调,灵活设定输出电压以适配不同负载。
  • 封装与环境:TSOT-23-6 小型封装,工作温度 -40℃ ~ +125℃,适用于工业级环境。

三、典型应用场景

  • 工业电源管理(48V/24V 总线降压)。
  • 通信设备与基站前端供电。
  • 仪器仪表与检测系统的次级供电。
  • 电池管理与分布式能源系统中的降压环节(需根据系统可靠性评估)。
  • 车载电子(适配宽电压输入,但请确认汽车级认证需求)。

四、封装与热管理建议

TSOT-23-6 封装体积小,布局时需注意热量集中与散热路径。建议:

  • 在 PCB 背面/底层布置足够铜箔作为散热垫,并通过过孔连接多层地铜。
  • 关键走线(输入、输出、开关节点)尽量短且粗,减少寄生电感。
  • 高压输入端建议加输入滤波与 TVS 保护以增强稳态与瞬态抗扰能力。

五、设计要点与注意事项

  • 由于为异步降压,输出整流建议选用低正向压降的肖特基二极管以提高效率并减少功耗。
  • 外部电感需选取额定电流高于 1.2A 的低 DCR 器件,配合 200kHz 频率选择合适电感值以控制峰值电流与纹波。
  • 输入/输出旁路电容优先使用低 ESR 陶瓷电容,必要时并联电解电容改善瞬态响应。
  • 输出电压通过外部反馈电阻设定,具体参考厂商规格书中的参考电压与典型电路。
  • 推荐按厂商资料完成 PCB 布局与 EMI 抑制设计,并在目标工况下验证热性能与可靠性。

六、资料与选型建议

在最终设计与量产前,请务必参阅 SY8511BADC 的完整规格书获取引脚定义、典型应用电路、各项电气参数、热阻与保护功能说明。若应用在汽车或特殊工业标准场景,确认器件符合相应认证或采用替代器件以满足系统要求。

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