WMSIC Electronic Components

Silergy SA21340FCA

ModelSA21340FCA
PackageSO-8-EP
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 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
silergy SA21340FCA
Type
SILERGY
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
300mV@(300mA)
Electronic Component
SILERGY
Electronic Component
SA21340FCA
Electronic Component
1
Package
SO-8-EP
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.137g
Electronic Component
1
Features
positions
Electronic Component
BM0264554813
Operating Temperature
40℃~+125℃
Operating Voltage
36V
Output Current
300mA
Output Type
Electronic Component
Output Channel Count
1

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

SA21340FCA 产品概述

一、产品简介

SA21340FCA 是硅力杰(silergy)推出的一款高压、快响应低压差线性稳压器(LDO),单通道可调输出,支持最高输入电压36V,输出电流最高300mA。器件采用SO-8-EP封装,集成多项保护与监测功能,适用于工业与消费类高压输入场景的电源管理需求。

二、主要电气特性

  • 最大工作电压:36V
  • 最大输出电流:300mA
  • 压差(Dropout):300mV @ 300mA
  • 静态电流(Iq):7µA(低静态电流,适合低功耗应用)
  • 电源纹波抑制比(PSRR):60dB @ 100Hz(对低频干扰有良好抑制)
  • 输出类型:可调
  • 工作温度范围:-40℃ ~ +125℃
  • 封装:SO-8-EP

三、功能与保护

SA21340FCA 集成了使能控制、过流保护(OCP)、短路保护、热关断(thermal shutdown)、复位功能以及输入欠压保护(UVP)。这些功能使芯片在异常工况下能自动保护负载与自身,避免因短路或过温导致系统失效。同时可调输出与复位功能提升了系统设计的灵活性与可靠性。

四、优势与适用场景

该器件兼具高压输入能力与低静态功耗特性,适合用于需要从高压轨降压并要求快速响应与高PSRR的场合,例如工业控制模块、传感前端、电源管理子系统、通信终端外围电源以及一些电池或汽车辅助电路(在未做特殊车规认证的情况下,建议按系统级要求评估)。SO-8-EP 的裸露散热焊盘有利于散热,便于在高功率或长时间工作时保持热稳定。

五、设计注意事项

  • 输入与输出电容:为保证稳定性与瞬态响应,建议在输入端和输出端放置低ESR陶瓷电容,靠近芯片封装布板。常见值范围可根据系统要求选择(例如1µF~10µF作为起点),并根据布局和负载特性验证稳定性。
  • 热设计:利用SO-8-EP的裸露散热焊盘(EP)良好接地并扩展铜箔面积,以降低结温。在高压差和大电流条件下注意功耗(P ≈ (Vin - Vout) × Iout)带来的加热。
  • 使能与复位:合理设计使能脚与复位逻辑,避免上电瞬态误触发。若系统需要外部监控,可将复位输出与微控制器复位输入联动。
  • 电压裕度:考虑300mV压差在满载下的影响,设计时保证输入电压至少高于期望输出电压加上该压差及留有一定裕量。

六、结语

SA21340FCA 以其36V高压输入、300mA输出能力、低静态电流与完善的保护功能,适合需要高PSRR和快响应的中小功率电源应用。合理的封装热处理与外围电容布局可以充分发挥其稳压与保护优势,为系统提供可靠、低噪声的电源解决方案。若需进一步参数详情或典型应用电路建议,可参考硅力杰官方数据手册。

Request for quote

Send RFQ

Use the form for single models, category sourcing, and multi-line BOM requirements.

Send your target model and quantity.

Product sourcing intelligence

Model, package, availability, and BOM fit reviewed before quotation.

WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.

Electronic component model and package intelligence review on an ESD-safe inspection bench

Model & package intelligence

Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.

BOM matching and alternative component comparison workstation with protected IC samples

BOM matching & alternatives

BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.

Electronic component sourcing availability dashboard with ESD-protected samples

Sourcing availability signal

Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.

Buyer sourcing scenarios

Examples of how common component sourcing requests are organized.

Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.

The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.

Package confirmation Typical RFQ workflow

A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.

Mixed BOM triage Typical RFQ workflow

The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.

Obsolete-part review Typical RFQ workflow

Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.

Small-batch request Typical RFQ workflow

Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.

Repair batch evidence Typical RFQ workflow

When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.

Model suffix clarification Typical RFQ workflow

Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.

Export handoff Typical RFQ workflow

The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.

Replenishment inquiry Typical RFQ workflow

Related products

Packaged components ready for RFQ.