RT8205B中文資料立锜科技數(shù)據(jù)手冊PDF規(guī)格書
| 廠商型號 |
RT8205B |
| 功能描述 | High Efficiency, Main Power Supply Controllers for Notebook Computers |
| 文件大小 |
497.93 Kbytes |
| 頁面數(shù)量 |
28 頁 |
| 生產(chǎn)廠商 | RICHTEK |
| 中文名稱 | 立锜科技 |
| 網(wǎng)址 | |
| 數(shù)據(jù)手冊 | |
| 更新時間 | 2026-1-21 1:01:00 |
| 人工找貨 | RT8205B價格和庫存，歡迎聯(lián)系客服免費(fèi)人工找貨 |
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High Efficiency, Main Power Supply Controllers for Notebook Computers
General Description
The RT8205A/B/C dual step-down, switch-mode power supply controller generates logic-supply voltages in battery-powered systems. The RT8205A/B/C includes two pulse-width modulation (PWM) controllers fixed at 5V/3.3V or adjustable from 2V to 5.5V. An alternative LGATE1
output LG1_CP can be used for external charge pump (RT8205B). And an optional external charge pump can be monitored through SECFB (RT8205C). 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 RT8205A/B/C includes on-board power-up sequencing, the power-good output, internal soft start, and internal soft-discharge output that prevents negative voltages on shutdown.
特性 Features
Wide Input Voltage Range 6V to 25V
Dual Fixed 5V/3.3V Outputs or Adjustable from 2V to 5.5V, 1.5 Accuracy.
Alternative LGATE1 Output (LG1_CP) acts as Clock for Charge Pump (RT8205B)
Secondary Feedback Input Maintains Charge Pump Voltage (RT8205C)
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
| 供應(yīng)商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
|---|---|---|---|---|---|---|---|
RICHTEK |
18+ |
QFN |
197 |
一級代理,專注軍工、汽車、醫(yī)療、工業(yè)、新能源、電力 |
詢價 | ||
RICHTEK |
22+ |
QFN |
30000 |
只做原裝正品 |
詢價 | ||
RICHTEK/立锜 |
22+ |
WQFN-24 |
100000 |
代理渠道/只做原裝/可含稅 |
詢價 | ||
Richtek(立崎) |
23+ |
NA |
26094 |
10年以上分銷經(jīng)驗(yàn)原裝進(jìn)口正品,做服務(wù)型企業(yè) |
詢價 | ||
RICHTEK |
22+ |
QFN |
20000 |
公司只做原裝 品質(zhì)保障 |
詢價 | ||
RICHTEK/立锜 |
21+ |
WQFN-24 |
880000 |
明嘉萊只做原裝正品現(xiàn)貨 |
詢價 | ||
RICHTEK/立锜 |
2450+ |
QFN |
9485 |
只做原裝正品現(xiàn)貨或訂貨假一賠十! |
詢價 | ||
RICHTEK/立锜 |
24+ |
89743 |
原裝正品現(xiàn)貨供應(yīng) |
詢價 | |||
RICHTEK/立锜 |
2023+ |
WQFN-24 |
25860 |
原廠全新正品旗艦店優(yōu)勢現(xiàn)貨 |
詢價 | ||
RICHTEK/立锜 |
21+ |
WQFN-24 |
25860 |
詢價 |
