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          首頁(yè) >RT8249B>規(guī)格書(shū)列表

          型號(hào)下載 訂購(gòu)功能描述制造商 上傳企業(yè)LOGO

          RT8249B

          Dual-Channel Synchronous DC/DC Step-Down Controller with 5V/3.3V LDOs

          General Description The RT8249A/B/C is a dual-channel step-down, controller generating supply voltages for battery-powered systems. It includes two Pulse-Width Modulation (PWM) controllers adjustable from 2V to 5.5V, and two fixed 5V/3.3V linear regulators. Each linear regulator provides up t

          文件:295.55 Kbytes 頁(yè)數(shù):23 Pages

          RICHTEK

          立锜科技

          RT8249BGQW

          絲印:2P;Package:WQFN-20L;Dual-Channel Synchronous DC/DC Step-Down Controller with 5V/3.3V LDOs

          General Description The RT8249A/B/C is a dual-channel step-down, controller generating supply voltages for battery-powered systems. It includes two Pulse-Width Modulation (PWM) controllers adjustable from 2V to 5.5V, and two fixed 5V/3.3V linear regulators. Each linear regulator provides up t

          文件:295.55 Kbytes 頁(yè)數(shù):23 Pages

          RICHTEK

          立锜科技

          RT8249B

          含 5V/3.3V LDO 的雙通道同步 Buck 控制器

          RT8249A/B/C 是雙通道 Buck 控制器,用于為電池供電的系統(tǒng)生成穩(wěn)定的電壓。其中包含兩組輸出電壓 2V~5.5V 可調(diào)的 PWM 控制器和兩組恒定 5V/3.3V 輸出的線性穩(wěn)壓器,每組線性穩(wěn)壓器可輸出最大 100mA 的電流,3.3V 線性穩(wěn)壓器在輸出電流低于 35mA 時(shí)的穩(wěn)壓精度可達(dá) 1%。RT8249A/B 包含一個(gè)可用于外部電荷泵電路的振蕩器輸出,RT8249C 則提供了一個(gè)模式選擇引腳 SKIPSEL 用于選擇二極管仿真模式(DEM)或音頻避開(kāi)模式(ASM)。它們具有集成化的上電時(shí)序控制功能、Power Good 輸出、內(nèi)部軟起動(dòng)功能和防止關(guān)機(jī)以后出現(xiàn)負(fù)壓的輸出 ?支持超級(jí)本的連接待機(jī)模式\n?PWM 最大責(zé)任周期 > 98%\n? 雙通道可調(diào)節(jié)輸出:\n?5V/3.3V LDO 具有 100mA 輸出能力\n?振蕩器輸出可供電荷泵電路使用\n?內(nèi)部軟啟動(dòng)和軟放電\n?獨(dú)立控制器使能控制\n?非鎖定的 UVLO\n?20引腳 WQFN 封裝\n?符合 RoHS 規(guī)范,不含鹵素;

          Richtek

          立锜科技

          RT8249C

          Dual-Channel Synchronous DC/DC Step-Down Controller with 5V/3.3V LDOs

          General Description The RT8249A/B/C is a dual-channel step-down, controller generating supply voltages for battery-powered systems. It includes two Pulse-Width Modulation (PWM) controllers adjustable from 2V to 5.5V, and two fixed 5V/3.3V linear regulators. Each linear regulator provides up t

          文件:295.55 Kbytes 頁(yè)數(shù):23 Pages

          RICHTEK

          立锜科技

          RT8249CGQW

          Dual-Channel Synchronous DC/DC Step-Down Controller with 5V/3.3V LDOs

          General Description The RT8249A/B/C is a dual-channel step-down, controller generating supply voltages for battery-powered systems. It includes two Pulse-Width Modulation (PWM) controllers adjustable from 2V to 5.5V, and two fixed 5V/3.3V linear regulators. Each linear regulator provides up t

          文件:295.55 Kbytes 頁(yè)數(shù):23 Pages

          RICHTEK

          立锜科技

          RT8249D

          Dual-Channel Synchronous DC/DC Step-Down Controller with 5V/3.3V LDOs

          文件:252.86 Kbytes 頁(yè)數(shù):21 Pages

          RICHTEK

          立锜科技

          技術(shù)參數(shù)

          • Vs(typ)(V):

            12;19

          • Vin(min)(V):

            5

          • Vin(max)(V):

            25

          • Vout(min)(V):

            2

          • Vout(max)(V):

            5.5

          • Output Adj. Method:

            Resistor

          • Accuracy(+/- %):

            1

          • Freq(typ)(kHz):

            400

          • Iq(typ)(mA):

            0.015

          • Ext Sync:

            No

          • Features:

            COT Control;Diode Emulation Mode;OCP;OVP;PSM;Power Good;UVP

          • Package Type:

            WQFN3x3-20

          供應(yīng)商型號(hào)品牌批號(hào)封裝庫(kù)存備注價(jià)格
          Richtek(立崎)
          23+
          NA
          26094
          10年以上分銷(xiāo)經(jīng)驗(yàn)原裝進(jìn)口正品,做服務(wù)型企業(yè)
          詢價(jià)
          RICHTEK/立錡
          22+
          QFN
          12245
          現(xiàn)貨,原廠原裝假一罰十!
          詢價(jià)
          RICHTEK(臺(tái)灣立锜)
          25+
          封裝
          500000
          源自原廠成本,高價(jià)回收工廠呆滯
          詢價(jià)
          RICHTEK
          13+
          SOP-8
          4509
          原裝分銷(xiāo)
          詢價(jià)
          RICHTEK
          23+
          NA
          5641
          專業(yè)電子元器件供應(yīng)鏈正邁科技特價(jià)代理特價(jià),原裝元器件供應(yīng),支持開(kāi)發(fā)樣品
          詢價(jià)
          RICHTEK/立锜
          24+
          SOP-8
          98743
          原裝正品現(xiàn)貨供應(yīng)
          詢價(jià)
          RICHTEK
          24+
          SOP-8
          36500
          原裝現(xiàn)貨/放心購(gòu)買(mǎi)
          詢價(jià)
          RICHTEK/立锜
          2447
          HSOP8
          100500
          一級(jí)代理專營(yíng)品牌!原裝正品,優(yōu)勢(shì)現(xiàn)貨,長(zhǎng)期排單到貨
          詢價(jià)
          SOP8
          420
          一級(jí)代理,專注軍工、汽車(chē)、醫(yī)療、工業(yè)、新能源、電力
          詢價(jià)
          RICHTEK/立锜
          22+
          SOP
          18000
          原裝正品
          詢價(jià)
          更多RT8249B供應(yīng)商 更新時(shí)間2026-1-19 17:18:00
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