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RT8223A中文資料
RT8223A數(shù)據(jù)手冊規(guī)格書PDF詳情
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 linear regulators providing fixed 5V and 3.3V outputs. The linear regulator each provides up to 70mA output current with automatic linear-regulator bootstrapping to the PWM outputs. The RT8223A/B includes on-board power-up sequencing, the power good output, internal soft start, and internal soft-discharge output that prevents negative voltages on shutdown.
A constant on-time PWM control scheme operates without sense resistor and provides 100ns response to load transients while maintaining a relatively constant switching frequency. The unique ultrasonic mode maintains the switching frequency above 25kHz, which eliminates noise in audio applications. Other features include diode emulation mode (DEM), which maximizes efficiency in light-load applications, and fixed-frequency PWM mode, which reduces RF interference in sensitive application.
Features
? Wide Input Voltage Range 6V to 25V
? Dual Fixed 5V/3.3V Outputs or Adjustable from 2V to 5.5V, 1.5 Accuracy
? Fixed 3.3V and 5V LDO Output : 70mA
? 2V Reference Voltage ±1 : 50μA
? Constant ON-Time Control with 100ns Load Step Response
? Frequency Selectable via TONSEL Setting
? RDS(ON) Current Sensing and Programmable Current Limit combined with Enable Control
? Selectable PWM, DEM, or Ultrasonic Mode
? Internal Soft-Start and Soft-Discharge
? High Efficiency up to 97
? 5mW Quiescent Power Dissipation
? Thermal Shutdown
? RoHS Compliant and Halogen Free
Applications
? Notebook and Sub-Notebook Computers
? 3-Cell and 4-Cell Li+ Battery-Powered Devices
RT8223A產(chǎn)品屬性
- 類型
描述
- 型號(hào)
RT8223A
- 制造商
RICHTEK
- 制造商全稱
Richtek Technology Corporation
- 功能描述
High Efficiency, Main Power Supply Controller for Notebook Computers
| 供應(yīng)商 | 型號(hào) | 品牌 | 批號(hào) | 封裝 | 庫存 | 備注 | 價(jià)格 |
|---|---|---|---|---|---|---|---|
RICHTEK |
24+ |
QFN24 |
5000 |
只做原裝公司現(xiàn)貨 |
|||
RICHTEK |
18+ |
QFN24 |
85600 |
保證進(jìn)口原裝可開17%增值稅發(fā)票 |
|||
RICHTEK |
23+ |
QFN24 |
50000 |
全新原裝正品現(xiàn)貨,支持訂貨 |
|||
Richtek |
24+ |
WQFN-24L |
39500 |
進(jìn)口原裝現(xiàn)貨 支持實(shí)單價(jià)優(yōu) |
|||
RICHTEK |
25+23+ |
QFN |
40723 |
絕對原裝正品全新進(jìn)口深圳現(xiàn)貨 |
|||
RICHTEK |
21+ |
QFN |
12588 |
原裝正品,自己庫存 假一罰十 |
|||
RICHTEK |
24+ |
QFN |
35200 |
一級(jí)代理分銷/放心采購 |
|||
RICHTEK |
1108+;09+ |
QFN24 |
314 |
一級(jí)代理,專注軍工、汽車、醫(yī)療、工業(yè)、新能源、電力 |
|||
RICHTEK |
23+ |
WQFN-24L 4x4 |
4488 |
原廠原裝正品 |
|||
RICHTEK |
2025+ |
WQFN-24L4x4 |
3550 |
全新原廠原裝產(chǎn)品、公司現(xiàn)貨銷售 |
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RT8223A 芯片相關(guān)型號(hào)
RICHTEK相關(guān)芯片制造商
Datasheet數(shù)據(jù)表PDF頁碼索引
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Richtek Technology Corporation 立锜科技股份有限公司
中文資料: 9985條
立锜科技(Richtek Technology Corporation)是一間國際級(jí)的模擬IC設(shè)計(jì)公司，專注于提供客戶多元且具競爭力的產(chǎn)品以及完整的電源管理解決方案。自成立以來，立锜專注于整合技術(shù)能力、堅(jiān)持質(zhì)量和積極的客戶服務(wù)，以提供客戶產(chǎn)品價(jià)值為宗旨，產(chǎn)品廣泛應(yīng)用于電腦、消費(fèi)性終端產(chǎn)品、網(wǎng)絡(luò)通訊裝置、大尺寸面板顯示器等領(lǐng)域。立锜成立于1998年，總公司設(shè)立于臺(tái)灣新竹，并且在亞洲、美國和歐洲各地設(shè)有服務(wù)據(jù)點(diǎn)。 公司的愿景是提供客戶完整的電源管理解決方案，以降低成本，提升競爭力；屹立在電源管理的領(lǐng)域里，無論是技術(shù)、質(zhì)量、成本、服務(wù)及市場占有率上，均具有領(lǐng)導(dǎo)地位；同時(shí)，立锜致力于建立電源管理頂尖專
