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basicInfoTitle
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12
left
buttonParametricSearch
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i18n(button-item.parametric-search.button-label)
i18n(button-item.parametric-search.button-link)
_self
true
buttonDatasheet
text-with-icon
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i18n(button-item.datasheet.button-label)
i18n(button-item.datasheet.button-link)
_self
true
buttonContactUs
text-with-icon
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i18n(button-item.contact-us.button-label)
i18n(button-item.contact-us.button-link)
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basicInfoSubtitle
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altText
Product Spec Banner
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id
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RT9971A 是一款完整的電源供應解決方案，適用於數位相機與其他手持式裝置。RT9971A 是一款多通道電源管理 IC，包含兩個升壓 DC/DC 轉換器、兩個降壓 DC/DC 轉換器、一個可選式升壓 / 降壓 DC/DC 轉換器、一個反相 DC/DC 轉換器與一個 WLED 驅動器。RT9971A 設計用於滿足 DSC 應用需求如下：CH1 是同步升壓輸出，用於馬達或 DSC 系統 I/O 電源CH2 是可選式同步升壓 / 降壓輸出，用於馬達或 DSC 系統 I/O 電源CH3 與 CH4 是同步降壓輸出，用於 DSP 核心與記憶體電源供應CH5 是高電壓升壓輸出，用於 CCD 偏壓電源供應CH6 是反相輸出，用於負 CCD 偏壓電源供應CH7 是高電壓升壓輸出，用於驅動 WLED對於 CH2，可透過 SEL 腳位選擇升壓或降壓轉換器運作模式。在所有通道中，有 5 個通道具備內建內部補償。RT9971A 亦提供無變壓器反相轉換器，用於供應 CCD 電源。對於同步升壓與降壓轉換器，效率可高達 95%。此 IC 為通道 1 與通道 5 提供負載斷接功能。此 IC 具備可選式 RTC_LDO/SW1，可由 CN 腳位決定。RT9971A 可支援鋰離子與 2AA 電池應用。RT9971A 提供 WLED 開路保護、電流限制、熱關斷保護、過壓與欠壓保護，以實現完整保護。RT9971A 採用 WQFN-40L 5x5 封裝。
RT9971A 電路圖
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basicInfoImageSection
anchor
productDetailSection
i18n(anchor-tab.product-detail-section.title)
productDetailSectionAnchorTab
orderingInformationSection
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technicalDocumentationSection
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designToolSection
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applicationSection
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packageSizePinsSizeSection
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i18n(tab-item.product-feature-section.title)
productFeatureSection
productFeatureSectionTab
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buttonSeeProductDifferences
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i18n(button-item.see-product-differences.button-label)
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_self
false
buttonFindOtherCategory
text-with-icon
right
secondary-m
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i18n(button-item.find-other-category.button-label)
i18n(button-item.find-other-category.button-link)
_self
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width
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F5F6F8
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productDetailSection
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parameterTable
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parameterSection
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id
packageSizePinsSizeSection
productFeature
<div class="spec-list"><ul class="lv1"><li>One Synchronous Step-Up or Step-Down Selectable Convertor </li><li>Support 2AA or Li-ion Battery Applications </li><li>Preset On/Off Sequence </li><li>5 Channels with Internal Compensation </li><li>All Power Switches Integrated </li><li>Up to 95%Efficiency </li><li>100%(max) Duty Cycle for Step-Down Converter </li><li>Adjustable Output Voltage </li><li>LED PWM Dimming Control </li><li>LED Open Protection </li><li>Transformerless Inverting Converter for CCD </li><li>Fixed 1MHz Switching Frequency at CH1 to CH7 </li><li>RTC_LDO/SW1 Selectable by CN Pin </li><li>40-Lead WQFN Package </li><li>RoHS Compliant and Halogen Free </li></ul></div>
width
fixed-width
id
productFeatureSection
24
24
24
24
i18n(tabs.ordering-information.title)
orderingInformationTabs
i18n(tab-item.product-section.title)
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
RT9971A 訂購資訊
normal-table
card-list
products
productTable
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fixed-width
id
productSection
evbImageSwitcher
normal-table
card-list
evb
evbTable
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fixed-width
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evbSection
orderingDetail
width
fixed-width
id
orderingDetailSection
technical-documents
RT9971A
technicalDocumentMultipleTable
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fixed-width
id
technicalDocumentationSection
design-tools
RT9971A
designToolMultipleTable
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fixed-width
id
designToolSection
32
56
56
56
rt-blue-800
i18n(text.application-title.text-content)
applicationTitle
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24
24
24
<div class="spec-list"><ul class="lv1"><li>Digital Still Camera </li><li>PDA </li><li>Portable Device </li></ul></div>
applicationContent
35
35
35
35
keywordList
56
56
56
56
width
fixed-width
id
applicationSection
rt-blue-800
i18n(text.support-card-title.text-content)
supportCardTitle
withLine
40
40
40
24
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