LT3009 3μA IQ、20mA 低压差线性稳压器
LT®3009 系列是微功率、低压差电压 (LDO) 线性稳压器。这些器件可提供 20mA 输出电流和一个 280mV 的压差电压。无负载静态电流为 3μA。当负载增加时，接地引脚电流保持在低于 5% 输出电流的水平上。在停机模式中，静态电流
LT3009 稳压器利用低 ESR 陶瓷电容器 (所需的最小电容值仅为 1μF) 来优化稳定性和瞬态响应。这些稳压器不像其他稳压器所常见的那样需要额外的 ESR。内部保护电路包括电流限制、热限制、反向电池保护和反向电流保护。
对于那些需要中等输出驱动能力以及超低待机功耗的应用而言，LT3009 系列是理想的选择。该器件可提供 1.2V、1.5V、1.8V、2.5V、3.3V 和 5V 固定输出电压，而且也可以用作一款具一个低至 600mV 基准的输出电压范围的可调型器件。LT3009 采用 6 引脚 DFN 和 8 引脚 SC70 封装。
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LT3009 订购信息和价格参考Package Variations and Pricing
| 器件型号 | 封装 | 引脚 | 温度 | 价格 (以 1 ~ 99 片为批量) | 价格 (以 1000 片为批量) * |
| LT3009EDC#PBF | DFN | 6 | E | $1.36 | |
| LT3009EDC#TRMPBF | DFN | 6 | E | $1.36 | $1.00 |
| LT3009EDC#TRPBF | DFN | 6 | E | $1.36 | $0.95 |
| LT3009EDC-1.2#PBF | DFN | 6 | E | $1.36 | |
| LT3009EDC-1.2#TRMPBF | DFN | 6 | E | $1.36 | $1.00 |
| LT3009EDC-1.2#TRPBF | DFN | 6 | E | $1.36 | $0.95 |
| LT3009EDC-1.5#PBF | DFN | 6 | E | $1.36 | |
| LT3009EDC-1.5#TRMPBF | DFN | 6 | E | $1.36 | $1.00 |
| LT3009EDC-1.5#TRPBF | DFN | 6 | E | $1.36 | $0.95 |
| LT3009EDC-1.8#PBF | DFN | 6 | E | $1.36 | |
| LT3009EDC-1.8#TRMPBF | DFN | 6 | E | $1.36 | $1.00 |
| LT3009EDC-1.8#TRPBF | DFN | 6 | E | $1.36 | $0.95 |
| LT3009EDC-2.5#PBF | DFN | 6 | E | $1.36 | |
| LT3009EDC-2.5#TRMPBF | DFN | 6 | E | $1.36 | $1.00 |
| LT3009EDC-2.5#TRPBF | DFN | 6 | E | $1.36 | $0.95 |
| LT3009EDC-3.3#PBF | DFN | 6 | E | $1.36 | |
| LT3009EDC-3.3#TRMPBF | DFN | 6 | E | $1.36 | $1.00 |
| LT3009EDC-3.3#TRPBF | DFN | 6 | E | $1.36 | $0.95 |
| LT3009EDC-5#PBF | DFN | 6 | E | $1.36 | |
| LT3009EDC-5#TRMPBF | DFN | 6 | E | $1.36 | $1.00 |
| LT3009EDC-5#TRPBF | DFN | 6 | E | $1.36 | $0.95 |
| LT3009ESC8#PBF | SC70 | 8 | E | $1.36 | |
| LT3009ESC8#TRMPBF | SC70 | 8 | E | $1.36 | $1.00 |
| LT3009ESC8#TRPBF | SC70 | 8 | E | $1.36 | $0.95 |
| LT3009ESC8-1.2#PBF | SC70 | 8 | E | $1.36 | |
| LT3009ESC8-1.2#TRMPBF | SC70 | 8 | E | $1.36 | $1.00 |
| LT3009ESC8-1.2#TRPBF | SC70 | 8 | E | $1.36 | $0.95 |
| LT3009ESC8-1.5#PBF | SC70 | 8 | E | $1.36 | |
| LT3009ESC8-1.5#TRMPBF | SC70 | 8 | E | $1.36 | $1.00 |
| LT3009ESC8-1.5#TRPBF | SC70 | 8 | E | $1.36 | $0.95 |
| LT3009ESC8-1.8#PBF | SC70 | 8 | E | $1.36 | |
| LT3009ESC8-1.8#TRM | SC70 | 8 | E | $1.36 | $1.00 |
| LT3009ESC8-1.8#TRMPBF | SC70 | 8 | E | $1.36 | $1.00 |
| LT3009ESC8-1.8#TRPBF | SC70 | 8 | E | $1.36 | $0.95 |
| LT3009ESC8-2.5#PBF | SC70 | 8 | E | $1.36 | |
| LT3009ESC8-3.3#PBF | SC70 | 8 | E | $1.36 | |
| LT3009ESC8-3.3#TRMPBF | SC70 | 8 | E | $1.36 | $1.00 |
| LT3009ESC8-3.3#TRPBF | SC70 | 8 | E | $1.36 | $0.95 |
| LT3009ESC8-5#PBF | SC70 | 8 | E | $1.36 | |
| LT3009ESC8-5#TRMPBF | SC70 | 8 | E | $1.36 | $1.00 |
| LT3009ESC8-5#TRPBF | SC70 | 8 | E | $1.36 | $0.95 |
| LT3009IDC#PBF | DFN | 6 | I | $1.56 | |
| LT3009IDC#TRMPBF | DFN | 6 | I | $1.56 | $1.14 |
| LT3009IDC#TRPBF | DFN | 6 | I | $1.56 | $1.09 |
| LT3009IDC-1.2#PBF | DFN | 6 | I | $1.56 | |
| LT3009IDC-1.2#TRMPBF | DFN | 6 | I | $1.56 | $1.14 |
| LT3009IDC-1.2#TRPBF | DFN | 6 | I | $1.56 | $1.09 |
| LT3009IDC-1.5#PBF | DFN | 6 | I | $1.56 | |
| LT3009IDC-1.5#TRMPBF | DFN | 6 | I | $1.56 | $1.14 |
| LT3009IDC-1.5#TRPBF | DFN | 6 | I | $1.56 | $1.09 |
| LT3009IDC-1.8#PBF | DFN | 6 | I | $1.56 | |
| LT3009IDC-1.8#TRMPBF | DFN | 6 | I | $1.56 | $1.14 |
| LT3009IDC-1.8#TRPBF | DFN | 6 | I | $1.56 | $1.09 |
| LT3009IDC-2.5#PBF | DFN | 6 | I | $1.56 | |
| LT3009IDC-2.5#TRMPBF | DFN | 6 | I | $1.56 | $1.14 |
| LT3009IDC-2.5#TRPBF | DFN | 6 | I | $1.56 | $1.09 |
| LT3009IDC-3.3#PBF | DFN | 6 | I | $1.56 | |
| LT3009IDC-3.3#TRMPBF | DFN | 6 | I | $1.56 | $1.14 |
| LT3009IDC-3.3#TRPBF | DFN | 6 | I | $1.56 | $1.09 |
| LT3009IDC-5#PBF | DFN | 6 | I | $1.56 | |
| LT3009IDC-5#TRMPBF | DFN | 6 | I | $1.56 | $1.14 |
| LT3009IDC-5#TRPBF | DFN | 6 | I | $1.56 | $1.09 |
演示电路板
| 器件型号 | 描述 |
| DC1156A | LT3009EDC Demo Board |
LT3009 数据手册及相关资料下载
- 数据手册(英文) : LT3009 - 3µA IQ, 20mA Low Dropout linear Regulator.PDF
- 可靠性数据 : R531 Reliability Data .PDF
- LT Journal : Jun 2007 - 3µA Quiescent Current LDO Improves Efficiency for Low Power Circuits in Industrial, Automotive and Battery-Powered Systems.PDF
- 产品新闻发布 (中文) : 采用 2mm x 2mm DFN 和 SC-70 封装的 3uA IQ 20mA LDO.PDF
