RT9271GB中文资料PDF规格书
RT9271GB规格书详情
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
产品属性
- 型号:
RT9271GB
- 制造商:
RICHTEK
- 制造商全称:
Richtek Technology Corporation
- 功能描述:
White LED Step-Up Converter in Tiny Package
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
RICHTEK |
589220 |
16余年资质 绝对原盒原盘 更多数量 |
询价 | ||||
RICHTEK/立锜 |
22+ |
SOT-23-5 |
68200 |
原装正品 |
询价 | ||
RICHTEK/立锜 |
23+ |
SOT23-5 |
362652 |
背光驱动IC原装正品有优势 |
询价 | ||
RICHTEK/立锜 |
SOT23-6 |
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-立绮 |
24+25+/26+27+ |
SOT-23-5 |
78800 |
一一有问必回一特殊渠道一有长期订货一备货HK仓库 |
询价 | ||
RICHTEK |
23+ |
SOT23-6 |
30000 |
代理全新原装现货,价格优势 |
询价 | ||
RICHTEK/立锜 |
2048+ |
SOT23-6 |
9852 |
只做原装正品现货!或订货假一赔十! |
询价 | ||
RICHTEK |
SOT23-6 |
893993 |
集团化配单-有更多数量-免费送样-原包装正品现货-正规 |
询价 | |||
RICHTEK |
20+ |
SOT23-6 |
43000 |
原装优势主营型号-可开原型号增税票 |
询价 | ||
RICHTEK |
20+ |
SOT-25 |
65300 |
一级代理/放心购买! |
询价 |