8
8
8
4
1rem
1rem
1rem
1rem
rt-dark-800
headline-3
false
true
basicInfoTitle
12
12
12
12
left
buttonParametricSearch
text-with-icon
i18n(button-item.parametric-search.button-label)
i18n(button-item.parametric-search.button-link)
_self
true
buttonDatasheet
text-with-icon
secondary
i18n(button-item.datasheet.button-label)
i18n(button-item.datasheet.button-link)
_self
true
buttonContactUs
text-with-icon
secondary
i18n(button-item.contact-us.button-label)
i18n(button-item.contact-us.button-link)
_self
true
36
24
24
12
rt-dark-800
basicInfoSubtitle
basicInfoImageSwitcher
The RT4822 integrates built-in power transistors, synchronous rectification, and low supply current to provide a compact solution for systems using advanced Li-Ion battery chemistries. The RT4822 is capable of supplying significant energy when the battery voltage is lower than the required voltage for system power ICs.<br /><br />The RT4822 is a boost regulator designed to provide a minimum output voltage from a single-cell Li-Ion battery, even when the battery voltage is below system minimum. In boost mode, output voltage regulation is guaranteed to a maximum load current of 1500mA. Quiescent current in shutdown mode is less than 1μA, which maximizes the battery life. The regulator transitions smoothly between bypass and normal boost mode. The device can be forced into bypass mode to reduce quiescent current.<br /><br />The RT4822 is available in the WL-CSP-9B 1.3x1.2 (BSC) package.
RT4822 Typical Circuit
anchor
productDetailSection
i18n(anchor-tab.product-detail-section.title)
productDetailSectionAnchorTab
orderingInformationSection
i18n(anchor-tab.ordering-information-section.title)
orderingInformationSectionAnchorTab
technicalDocumentationSection
i18n(anchor-tab.technical-documentation-section.title)
technicalDocumentationSectionAnchorTab
designToolSection
i18n(anchor-tab.design-tool-section.title)
designToolSectionAnchorTab
applicationSection
i18n(anchor-tab.application-section.title)
applicationSectionAnchorTab
supportSection
i18n(anchor-tab.support-section.title)
supportSectionAnchorTab
24
24
24
24
i18n(tabs.product-detail.title)
productDetailTabs
i18n(tab-item.parameter-section.title)
parameterSection
parameterSectionTab
i18n(tab-item.package-size-pin-size-section.title)
packageSizePinsSizeSection
packageSizePinsSizeSectionTab
i18n(tab-item.product-feature-section.title)
productFeatureSection
productFeatureSectionTab
24
24
24
24
buttonSeeProductDifferences
text-with-icon
right
secondary-m
tertiary
i18n(button-item.see-product-differences.button-label)
i18n(button-item.see-product-differences.button-link)
_self
false
buttonFindOtherCategory
text-with-icon
right
secondary-m
tertiary
i18n(button-item.find-other-category.button-label)
i18n(button-item.find-other-category.button-link)
_self
false
32
32
32
32
scrollable-table
parameterTable
normal-table
table-group
package-size-pins-size
packageSizePinsSizeTable
productFeature
<div class="spec-list"><ul class="lv1"><li>Ultra-Low Operating Quiescent Current </li><li>Quickly Start-Up Time (< 400μsec) </li><li>3 Few External Components: 1μH Inductor, 0402 Case Size Input and 0603 Case Size Output Case Size Capacitors </li><li>Input Voltage Range: 1.8V to 5.5V </li><li>Programmable Output Voltage from 3.15V to 5.5V with 25mV/Step </li><li>Support V<sub>IN</sub> > V<sub>OUT</sub> Operation </li><li>Default Boost Output Voltage Setting: V<sub>OUT</sub> = 5V </li><li>Maximum Continuous Load Current: 1.5A at V<sub>IN</sub> > 3.6V Boosting V<sub>OUT</sub> to 5V </li><li>Up to 93% Efficiency </li><li>Internal Synchronous Rectifier </li><li>Overcurrent Protection </li><li>Cycle by Cycle Current Limit </li><li>Undervoltage Protection </li><li>Overvoltage Protection </li><li>Short-Circuit Protection </li><li>Over-Temperature Protection </li><li>Small WL-CSP-9B 1.3x1.2 (BSC) Package </li></ul></div>
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
productImageSwitcher
RT4822 Ordering Information
normal-table
card-list
products
productTable
evbImageSwitcher
normal-table
card-list
evb
evbTable
orderingDetail
technical-documents
RT4822
technicalDocumentMultipleTable
design-tools
RT4822
designToolMultipleTable
32
56
56
56
rt-blue-800
i18n(text.application-title.text-content)
applicationTitle
withLine
24
24
24
24
<div class="spec-list"><ul class="lv1"><li>NFC Device Power Supply </li><li>USB Charging Ports </li><li>PC Accessory Application (Keyboard, Mouse...etc.) </li><li>TWS (True Wireless Stereo) Hall Sensor </li><li>Gaming Device Sensor </li></ul></div>
applicationContent
35
35
35
35
keywordList
56
56
56
56
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
56
56
56
32