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RT8223A

High Efficiency, Main Power Supply Controller for Notebook Computers

General Description The RT8223A/B dual step-down, switch-mode power supply controller generates logic-supply voltages in battery-powered systems. The RT8223A/B includes two pulse-width modulation (PWM) controllers fixed at 5V/3.3V or adjustable from 2V to 5.5V. This device also features 2 linea

文件:369.74 Kbytes 页数:26 Pages

RichTek

立锜科技

RT8223A

笔记本电脑主电源供应控制器

RT8223A/B 是一款双通道开关模式降压控制器,用于电池供电系统中为逻辑电路部分提供电源供应。它包含了两组输出电压可为恒定的 5V/3.3V 或可在 2V~5.5V 调节的 PWM 控制器和两组恒定电压(5V/3.3V)的线性稳压器。每个线性稳压器可以提供 70mA 输出电流,并可自动切换到 PWM 控制器的输出以提高效率。RT8223A/B 包含内置的上电时序管理能力、电源正常状态输出和内置软起动电路,还有内置输出软放电功能可以避免关机期间的负电压问题。它所使用的恒定导通时间( COT )模式下的 PWM 控制逻辑无需使用电流检测电阻,在负载发生瞬态变化时具有 100ns 的响应速度,同 ·宽输入电压范围:6V~25V\n·两路恒定 5V/3.3V 或 2V~5.5V 可调输出,精度1.5%\n·5V/3.3V 恒定输出线性稳压器输出能力为 70mA\n·2V 参考电压精度为 ±1%,负载能力为 50μA\n·COT 控制架构,赋予其 100ns 快速负载瞬态响应能力\n·由 TONSEL 端子状态进行工作频率选择\n·经 RDS(ON) 进行电流检测,可程序设计电流限制及使能信号共享一个端子\n·PWM、DEM 或超声模式可选\n·内置软起动和软放电功能\n·高达 97% 的效率\n·5mW 静态功率消耗\n·热关机保护\n·符合 RoHS 规范,不含;

Richtek

立锜科技

RT8223BGQW

High Efficiency, Main Power Supply Controller for Notebook Computers

General Description The RT8223A/B dual step-down, switch-mode power supply controller generates logic-supply voltages in battery-powered systems. The RT8223A/B includes two pulse-width modulation (PWM) controllers fixed at 5V/3.3V or adjustable from 2V to 5.5V. This device also features 2 linea

文件:369.74 Kbytes 页数:26 Pages

RichTek

立锜科技

RT8223L

High Efficiency, Main Power Supply Controller for Notebook Computer

General Description The RT8223L/M is a dual step-down, switch-mode power supply controller generating logic-supply voltages in battery-powered systems. It includes two Pulse Width Modulation (PWM) controllers adjustable from 2V to 5.5V, and also features fixed 5V/3.3V linear regulators. Each line

文件:397.58 Kbytes 页数:24 Pages

RichTek

立锜科技

RT8223LGQW

High Efficiency, Main Power Supply Controller for Notebook Computer

General Description The RT8223L/M is a dual step-down, switch-mode power supply controller generating logic-supply voltages in battery-powered systems. It includes two Pulse Width Modulation (PWM) controllers adjustable from 2V to 5.5V, and also features fixed 5V/3.3V linear regulators. Each line

文件:397.58 Kbytes 页数:24 Pages

RichTek

立锜科技

技术参数

  • Vs(typ) (V):

    19

  • Vin(min) (V):

    6

  • Vin(max)(V):

    25

  • Vout(min) (V):

    2

  • Vout(max) (V):

    5.5

  • Preset Vout (V):

    3.3;5

  • OutputAdj.Method:

    Fixed;Resistor

  • Accuracy (+/- %):

    1.5

  • Freq(typ) (kHz):

    300;375

  • Freq(min) (kHz):

    200

  • Freq(max) (kHz):

    500

  • Iq(typ) (mA):

    0.2

  • Features:

    Adjustable Current Limit;Adjustable Frequency;Built-in Bootstrap Switch;COT Control;Cycle-by-Cycle Current Limit;Diode Emulation Mode;Enable Input;Fast Transient Response;OCP;OVP;Power Good;SCP;UVP;Ultrasonic Mode Control

  • PackageType:

    WQFN4x4-24

供应商型号品牌批号封装库存备注价格
RICHTEK/立锜
23+
QFN24
11200
原厂授权一级代理、全球订货优势渠道、可提供一站式BO
询价
RICHTEK
24+
QFN24
5000
只做原装公司现货
询价
RICHTEK
18+
QFN24
85600
保证进口原装可开17%增值税发票
询价
RICHTEK
23+
QFN24
50000
全新原装正品现货,支持订货
询价
RICHTEK/立锜
23+
QFN24
50000
全新原装正品现货,支持订货
询价
RICHTEK
1108+;09+
QFN24
314
一级代理,专注军工、汽车、医疗、工业、新能源、电力
询价
RHTEK/立锜
24+
NA/
470
优势代理渠道,原装正品,可全系列订货开增值税票
询价
Richtek
24+
WQFN-24L
39500
进口原装现货 支持实单价优
询价
RICHTEK
25+23+
QFN
40723
绝对原装正品全新进口深圳现货
询价
RICHTEK/立锜
24+
WQFN24
78418
原装正品现货供应
询价
更多RT8223A供应商 更新时间2025-10-4 11:10:00