型号 | 下载 订购 | 功能描述 | 制造商 上传企业 | LOGO |
---|---|---|---|---|
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 | RichTek | |
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 | Richtek | |
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 | RichTek | ||
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 | RichTek | ||
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 | RichTek |
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 |
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