RT9271中文資料RichTek數(shù)據(jù)手冊PDF規(guī)格書
RT9271規(guī)格書詳情
General Description
The RT9271 is a step-up DC/DC converter specifically designed to drive white LEDs with a constant current. The device can drive one to three LEDs in series from a Li-Ion cell. Series connection of the LEDs providesidentical LED currents resulting in uniform brightness and eliminating the need for ballast resistors. The RT9271 switches at 1.1 MHz, allowing the use of tiny external components. The input and output capacitor can be as small as 1uF, saving space and cost versus alternative solutions. A low 0.25V feedback voltage minimizes power loss in the current
setting resistor for better efficiency.
Features
Inherently Matched LED Current
Up to 80mA Output Current @ VOUT< 12V
High Efficiency : 85 Typical
Drives Up to Three LEDs from 2.8V Supply
20V Internal Switch
Fast 1.1 MHz Switching Frequency
Uses Tiny 1 mm Height Inductors
Requires Only 1uF Output Capacitor
Low Profile SOT-23-6 Package
Optional 15V Over Voltage Protection
RoHS Compliant and 100 Lead (Pb)-Free
Applications
Mobile Phone
Digital Still Camera
PDAs, Handheld Computers
MP3 Players
GPS Receivers
產(chǎn)品屬性
- 型號：
RT9271
- 制造商：
RICHTEK
- 制造商全稱：
Richtek Technology Corporation
- 功能描述：
White LED Step-Up Converter in Tiny Package
| 供應(yīng)商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
|---|---|---|---|---|---|---|---|
RICHTEK |
23+ |
SOT23 |
8650 |
受權(quán)代理!全新原裝現(xiàn)貨特價熱賣! |
詢價 | ||
RICHTEK/立锜 |
24+ |
SOT23-6 |
32074 |
原裝正品現(xiàn)貨供應(yīng) |
詢價 | ||
RICHIEK |
23+ |
SOT-153 |
999999 |
原裝正品現(xiàn)貨量大可訂貨 |
詢價 | ||
RICHTEK |
06+PB |
SOT23-6 |
430 |
向鴻原裝正品/代理渠道/現(xiàn)貨優(yōu)勢 |
詢價 | ||
RICHTEK/立锜 |
22+ |
SOT-23-5 |
68200 |
原裝正品 |
詢價 | ||
RICHTEK/立锜 |
1942+ |
SOT23-6 |
9852 |
只做原裝正品現(xiàn)貨或訂貨!假一賠十! |
詢價 | ||
量大可定RICOH |
20+ |
SOT153 |
49000 |
原裝優(yōu)勢主營型號-可開原型號增稅票 |
詢價 | ||
RICHTEK |
21+ |
42664 |
12588 |
原裝正品假一罰十 |
詢價 | ||
RT |
2020+ |
SOT89 |
350000 |
100%進(jìn)口原裝正品公司現(xiàn)貨庫存 |
詢價 | ||
RICHTEK |
2020+ |
SOT-163 |
80000 |
只做自己庫存,全新原裝進(jìn)口正品假一賠百,可開13%增 |
詢價 |
