LT1761 采用 SOT-23 封装的 100mA、低噪声、LDO 微功率稳压器
LT®1761 系列是微功率、低噪声、低压差稳压器。利用一个外部 0.01μF 旁路电容器，输出噪声将降至 20μVRMS (在 10Hz 至 100kHz 的带宽之内)。该系列专为在电池供电型系统中使用而设计，20μA 的低静态电流使其成为一种理想的选择。在停机模式中，静态电流减小至 <0.1μA。这些器件可在一个 1.8V 至 20V 的输入电压范围内运作，并能够提供 100mA 输入电流和 300mV 的压差电压。静态电流处于良好受控状态，与采用其他许多稳压器时不同，在压降条件下静态电流并不上升。
LT1761 稳压器可在采用低至1μF输出电容器时实现稳定。可以采用小的陶瓷电容器，而不像其他稳压器那样必需使用串联电阻。
内部保护电路包括反向电池保护、电流限制、热限制和反向电流保护。这些器件可提供 1.2V、1.5V、1.8V、2V、2.5V、2.8V、3V、3.3V 和 5V 的固定输出电压，并可用作一款具有 1.22V 基准电压的可调型器件。LT1761 稳压器采用 5 引脚 TSOT-23 封装。
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LT1761 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) * |
| LT1761ES5-1.2 | SOT | 5 | E | $1.10 | |
| LT1761ES5-1.2#PBF | SOT | 5 | E | $1.10 | |
| LT1761ES5-1.2#TRM | SOT | 5 | E | $1.10 | $0.97 |
| LT1761ES5-1.2#TRMPBF | SOT | 5 | E | $1.10 | $0.97 |
| LT1761ES5-1.2#TRPBF | SOT | 5 | E | $1.10 | $0.95 |
| LT1761ES5-1.5 | SOT | 5 | E | $1.10 | |
| LT1761ES5-1.5#PBF | SOT | 5 | E | $1.10 | |
| LT1761ES5-1.5#TR | SOT | 5 | E | $1.10 | $0.95 |
| LT1761ES5-1.5#TRM | SOT | 5 | E | $1.10 | $0.97 |
| LT1761ES5-1.5#TRMPBF | SOT | 5 | E | $1.10 | $0.97 |
| LT1761ES5-1.5#TRPBF | SOT | 5 | E | $1.10 | $0.95 |
| LT1761ES5-1.8#PBF | SOT | 5 | E | $1.10 | |
| LT1761ES5-1.8#TR | SOT | 5 | E | $1.10 | $0.95 |
| LT1761ES5-1.8#TRM | SOT | 5 | E | $1.10 | $0.97 |
| LT1761ES5-1.8#TRMPBF | SOT | 5 | E | $1.10 | $0.97 |
| LT1761ES5-1.8#TRPBF | SOT | 5 | E | $1.10 | $0.95 |
| LT1761ES5-2 | SOT | 5 | E | $1.10 | |
| LT1761ES5-2#PBF | SOT | 5 | E | $1.10 | |
| LT1761ES5-2#TR | SOT | 5 | E | $1.10 | $0.95 |
| LT1761ES5-2#TRM | SOT | 5 | E | $1.10 | $0.97 |
| LT1761ES5-2#TRMPBF | SOT | 5 | E | $1.10 | $0.97 |
| LT1761ES5-2#TRPBF | SOT | 5 | E | $1.10 | $0.95 |
| LT1761ES5-2.5 | SOT | 5 | E | $1.10 | |
| LT1761ES5-2.5#PBF | SOT | 5 | E | $1.10 | |
| LT1761ES5-2.5#TR | SOT | 5 | E | $1.10 | $0.95 |
| LT1761ES5-2.5#TRM | SOT | 5 | E | $1.10 | $0.97 |
| LT1761ES5-2.5#TRMPBF | SOT | 5 | E | $1.10 | $0.97 |
| LT1761ES5-2.5#TRPBF | SOT | 5 | E | $1.10 | $0.95 |
| LT1761ES5-2.8 | SOT | 5 | E | $1.10 | |
| LT1761ES5-2.8#PBF | SOT | 5 | E | $1.10 | |
| LT1761ES5-2.8#TR | SOT | 5 | E | $1.10 | $0.95 |
| LT1761ES5-2.8#TRM | SOT | 5 | E | $1.10 | $0.97 |
| LT1761ES5-2.8#TRMPBF | SOT | 5 | E | $1.10 | $0.97 |
| LT1761ES5-2.8#TRPBF | SOT | 5 | E | $1.10 | $0.95 |
| LT1761ES5-3 | SOT | 5 | E | $1.10 | |
| LT1761ES5-3#PBF | SOT | 5 | E | $1.10 | |
| LT1761ES5-3#TR | SOT | 5 | E | $1.10 | $0.95 |
| LT1761ES5-3#TRM | SOT | 5 | E | $1.10 | $0.97 |
| LT1761ES5-3#TRMPBF | SOT | 5 | E | $1.10 | $0.97 |
| LT1761ES5-3#TRPBF | SOT | 5 | E | $1.10 | $0.95 |
| LT1761ES5-3.3 | SOT | 5 | E | $1.10 | |
| LT1761ES5-3.3#PBF | SOT | 5 | E | $1.10 | |
| LT1761ES5-3.3#TR | SOT | 5 | E | $1.10 | $0.95 |
| LT1761ES5-3.3#TRM | SOT | 5 | E | $1.10 | $0.97 |
| LT1761ES5-3.3#TRMPBF | SOT | 5 | E | $1.10 | $0.97 |
| LT1761ES5-3.3#TRPBF | SOT | 5 | E | $1.10 | $0.95 |
| LT1761ES5-5 | SOT | 5 | E | $1.10 | |
| LT1761ES5-5#PBF | SOT | 5 | E | $1.10 | |
| LT1761ES5-5#TR | SOT | 5 | E | $1.10 | $0.95 |
| LT1761ES5-5#TRM | SOT | 5 | E | $1.10 | $0.97 |
| LT1761ES5-5#TRMPBF | SOT | 5 | E | $1.10 | $0.97 |
| LT1761ES5-5#TRPBF | SOT | 5 | E | $1.10 | $0.95 |
| LT1761ES5-BYP | SOT | 5 | E | $1.10 | |
| LT1761ES5-BYP#PBF | SOT | 5 | E | $1.10 | |
| LT1761ES5-BYP#TR | SOT | 5 | E | $1.10 | $0.95 |
| LT1761ES5-BYP#TRM | SOT | 5 | E | $1.10 | $0.97 |
| LT1761ES5-BYP#TRMPBF | SOT | 5 | E | $1.10 | $0.97 |
| LT1761ES5-BYP#TRPBF | SOT | 5 | E | $1.10 | $0.95 |
| LT1761ES5-SD | SOT | 5 | E | $1.10 | |
| LT1761ES5-SD#PBF | SOT | 5 | E | $1.10 | |
| LT1761ES5-SD#TR | SOT | 5 | E | $1.10 | $0.95 |
| LT1761ES5-SD#TRM | SOT | 5 | E | $1.10 | $0.97 |
| LT1761ES5-SD#TRMPBF | SOT | 5 | E | $1.10 | $0.97 |
| LT1761ES5-SD#TRPBF | SOT | 5 | E | $1.10 | $0.95 |
| LT1761IS5-1.2#PBF | SOT | 5 | I | $1.50 | |
| LT1761IS5-1.2#TRMPBF | SOT | 5 | I | $1.50 | $1.10 |
| LT1761IS5-1.2#TRPBF | SOT | 5 | I | $1.50 | $1.05 |
| LT1761IS5-1.5#PBF | SOT | 5 | I | $1.50 | |
| LT1761IS5-1.5#TRMPBF | SOT | 5 | I | $1.50 | $1.10 |
| LT1761IS5-1.5#TRPBF | SOT | 5 | I | $1.50 | $1.05 |
| LT1761IS5-1.8#PBF | SOT | 5 | I | $1.50 | |
| LT1761IS5-1.8#TRMPBF | SOT | 5 | I | $1.50 | $1.10 |
| LT1761IS5-1.8#TRPBF | SOT | 5 | I | $1.50 | $1.05 |
| LT1761IS5-2.0#PBF | SOT | 5 | I | $1.50 | |
| LT1761IS5-2.0#TRMPBF | SOT | 5 | I | $1.50 | $1.10 |
| LT1761IS5-2.0#TRPBF | SOT | 5 | I | $1.50 | $1.05 |
| LT1761IS5-2.5#PBF | SOT | 5 | I | $1.50 | |
| LT1761IS5-2.5#TRMPBF | SOT | 5 | I | $1.50 | $1.10 |
| LT1761IS5-2.5#TRPBF | SOT | 5 | I | $1.50 | $1.05 |
| LT1761IS5-2.8#PBF | SOT | 5 | I | $1.50 | |
| LT1761IS5-2.8#TRMPBF | SOT | 5 | I | $1.50 | $1.10 |
| LT1761IS5-2.8#TRPBF | SOT | 5 | I | $1.50 | $1.05 |
| LT1761IS5-3#PBF | SOT | 5 | I | $1.50 | |
| LT1761IS5-3#TRMPBF | SOT | 5 | I | $1.50 | $1.10 |
| LT1761IS5-3#TRPBF | SOT | 5 | I | $1.50 | $1.05 |
| LT1761IS5-3.3#PBF | SOT | 5 | I | $1.50 | |
| LT1761IS5-3.3#TRM | SOT | 5 | I | ||
| LT1761IS5-3.3#TRMPBF | SOT | 5 | I | $1.50 | $1.10 |
| LT1761IS5-3.3#TRPBF | SOT | 5 | I | $1.50 | $1.05 |
| LT1761IS5-5#PBF | SOT | 5 | I | $1.50 | |
| LT1761IS5-5#TRM | SOT | 5 | I | ||
| LT1761IS5-5#TRMPBF | SOT | 5 | I | $1.50 | $1.10 |
| LT1761IS5-5#TRPBF | SOT | 5 | I | $1.50 | $1.05 |
| LT1761IS5-BYP#PBF | SOT | 5 | I | $1.50 | |
| LT1761IS5-BYP#TRM | SOT | 5 | I | ||
| LT1761IS5-BYP#TRMPBF | SOT | 5 | I | $1.50 | $1.10 |
| LT1761IS5-BYP#TRPBF | SOT | 5 | I | $1.50 | $1.05 |
| LT1761IS5-SD#PBF | SOT | 5 | I | $1.50 | |
| LT1761IS5-SD#TRMPBF | SOT | 5 | I | $1.50 | $1.10 |
| LT1761IS5-SD#TRPBF | SOT | 5 | I | $1.50 | $1.05 |
| LT1761MPS5-1.8#TRMPBF | SOT | 5 | MP | $2.51 | $1.81 |
| LT1761MPS5-1.8#TRPBF | SOT | 5 | MP | $2.51 | $1.76 |
| LT1761MPS5-3#TRMPBF | SOT | 5 | MP | $2.51 | $1.81 |
| LT1761MPS5-3.3#PBF | SOT | 5 | MP | $2.51 | |
| LT1761MPS5-3.3#TRMPBF | SOT | 5 | MP | $2.51 | $1.81 |
| LT1761MPS5-3.3#TRPBF | SOT | 5 | MP | $2.51 | $1.76 |
| LT1761MPS5-5#PBF | SOT | 5 | MP | $2.51 | |
| LT1761MPS5-5#TRMPBF | SOT | 5 | MP | $2.51 | $1.81 |
| LT1761MPS5-5#TRPBF | SOT | 5 | MP | $2.51 | $1.76 |
演示电路板
| 器件型号 | 描述 |
| DC330A | LT1761ES5-BYP/SD | SOT-23, 100mA LDO Regulator, 2 Circuits: Low Output Noise and Low Current Shutdown |
LT1761 数据手册及相关资料下载
- 数据手册(英文) : LT1761 - 100mA, Low Noise, LDO Micropower Regulators in TSOT-23.PDF
- 应用指南 (英文) : AN83 - Performance Verification of Low Noise, Low Dropout Regulators.PDF
- 设计要点 (英文) : DN220 - Lowest Noise SOT-23 LDOs Have 20µA Quiescent Current, 20µVrms Noise.PDF
- 设计要点 (英文) : DN228 - Isolated RS485 Transceiver Breaks Ground Loops.PDF
- 设计要点 (英文) : DN316 - Ultralow Noise Switching Power Supplies Simplify EMI Compliance.PDF
- 设计要点 (英文) : DN367 - Tiny Versatile Buck Regulators Operate from 3.6V to 36V Input.PDF
- 可靠性数据 : R386 Reliability Data .PDF
- LT Journal : Jun 1999 Micropower LDO Has the Lowest Noise and Quiescent Current in SOT-23.PDF
