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buttonParametricSearch
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buttonDatasheet
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buttonContactUs
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rt-dark-800
basicInfoSubtitle
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Product Spec Banner
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RT4822 是将功率开关、同步续流开关等全部集成了的带有旁通功能的同步 Boost 转换器，可在锂离子电池供电的系统中使用以确保电池电压低于系统需求时仍能将电池剩余电量提取出来供系统使用，达成尽量延长电池使用时间的目的。它在 Boost 模式下的最大供电能力可达 1500mA，关机模式下的电流消耗低于 1μA，旁通模式与 Boost 模式之间的切换顺滑流畅，强制其进入旁通模式可降低其静态电流消耗。其封装形式为 WL-CSP-9B 1.3x1.2 (BSC)。
RT4822 电路图
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fixed-width
id
basicInfoImageSection
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productDetailSection
i18n(anchor-tab.product-detail-section.title)
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orderingInformationSection
i18n(anchor-tab.ordering-information-section.title)
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technicalDocumentationSection
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anchorSection
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i18n(tabs.product-detail.title)
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parameterSectionTab
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packageSizePinsSizeSection
packageSizePinsSizeSectionTab
i18n(tab-item.product-feature-section.title)
productFeatureSection
productFeatureSectionTab
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buttonSeeProductDifferences
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false
buttonFindOtherCategory
text-with-icon
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i18n(button-item.find-other-category.button-label)
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width
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productDetailSection
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parameterTable
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parameterSection
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packageSizePinsSizeSection
productFeature
<div class="spec-list"><ul class="lv1"><li>静态电流消耗低 </li><li>启动时间小于 400μs </li><li>仅需 3 只周边元件：1μH 电感，0402 规格输入电容和 0603 规格输出电容 </li><li>输入电压范围：1.8V~5.5V </li><li>输出电压 3.15V~5.5V 可调，级差 25mV </li><li>可工作于输入电压高于输出电压的环境 </li><li>预设 Boost 模式输出电压为 5V </li><li>最大连续负载能力：1.5A@V<sub>OUT</sub>=5V, V<sub>IN</sub>>3.6V </li><li>效率可达 93% </li><li>内置同步续流开关 </li><li>过流保护 </li><li>逐周期电流限制 </li><li>欠压保护 </li><li>过压保护 </li><li>短路保护 </li><li>过热保护 </li><li>WL-CSP-9B 1.3x1.2 (BSC) 封装 </li></ul></div>
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productFeatureSection
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i18n(tabs.ordering-information.title)
orderingInformationTabs
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productSection
productSectionTab
i18n(tab-item.evb-section.title)
evbSection
evbSectionTab
i18n(tab-item.ordering-detail-section.title)
orderingDetailSection
orderingDetailSectionTab
24
24
24
24
width
fixed-width
id
orderingInformationSection
productImageSwitcher
RT4822 订购信息
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card-list
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productSection
evbImageSwitcher
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orderingDetail
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orderingDetailSection
technical-documents
RT4822
technicalDocumentMultipleTable
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technicalDocumentationSection
design-tools
RT4822
designToolMultipleTable
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designToolSection
32
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rt-blue-800
i18n(text.application-title.text-content)
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<div class="spec-list"><ul class="lv1"><li>NFC 设备供电 </li><li>USB 充电埠 </li><li>电脑配件如键盘、滑鼠等 </li><li>无线耳机 </li><li>游戏装置感测器 </li></ul></div>
applicationContent
35
35
35
35
keywordList
56
56
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fixed-width
id
applicationSection
rt-blue-800
i18n(text.support-card-title.text-content)
supportCardTitle
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40
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supportCards
i18n(support-card-item.technical-support.title)
i18n(support-card-item.technical-support.description)
i18n(support-card-item.technical-support.learn-more-text)
i18n(support-card-item.technical-support.url)
technicalSupportCard
i18n(support-card-item.ordering.title)
i18n(support-card-item.ordering.description)
i18n(support-card-item.ordering.learn-more-text)
i18n(support-card-item.ordering.url)
orderingSupportCard
i18n(support-card-item.sales.title)
i18n(support-card-item.sales.description)
i18n(support-card-item.sales.learn-more-text)
i18n(support-card-item.sales.url)
salesSupportCard
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56
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width
fixed-width
id
supportSection