LT1763 500mA、低噪声、LDO 微功率稳压器
LT®1763 系列是微功率、低噪声、低压差稳压器。这些器件能够提供 500mA 的输出电流和一个 300mV 的压差电压。该系列专为在电池供电型系统中使用而设计，30μA 的低静态电流使其成为一种理想的选择。静态电流处于良好受控状态；与采用其他许多稳压器不同，这系列在降压时的静态电流并不上升。
LT1763 稳压器的一个重要特点是具有低输出噪声。在增设一个外部 0.01μF 旁路电容器的情况下，输出噪声将降至 20μVRMS (在一个 10Hz 至 100kHz 的带宽之内)。LT1763 稳压器可在采用低至 3.3μF 的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1.5V、1.8V、2.5V、3V、3.3V 和 5V 的固定输出电压，并可用作一款具一个 1.22V 基准电压的可调型器件。LT1763 稳压器采用 8 引脚 SO 和 12 引脚扁平 (4mm x 3mm x 0.75mm) DFN 封装。
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LT1763 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) * |
| LT1763CDE | DFN | 12 | C | $2.79 | $1.95 |
| LT1763CDE#PBF | DFN | 12 | C | $2.79 | $1.95 |
| LT1763CDE#TR | DFN | 12 | C | $2.05 | |
| LT1763CDE#TRPBF | DFN | 12 | C | $2.05 | |
| LT1763CDE-1.5 | DFN | 12 | C | $2.79 | $1.95 |
| LT1763CDE-1.5#PBF | DFN | 12 | C | $2.79 | $1.95 |
| LT1763CDE-1.5#TR | DFN | 12 | C | $2.05 | |
| LT1763CDE-1.5#TRPBF | DFN | 12 | C | $2.05 | |
| LT1763CDE-1.8 | DFN | 12 | C | $2.79 | $1.95 |
| LT1763CDE-1.8#PBF | DFN | 12 | C | $2.79 | $1.95 |
| LT1763CDE-1.8#TR | DFN | 12 | C | $2.05 | |
| LT1763CDE-1.8#TRPBF | DFN | 12 | C | $2.05 | |
| LT1763CDE-2.5 | DFN | 12 | C | $2.79 | $1.95 |
| LT1763CDE-2.5#PBF | DFN | 12 | C | $2.79 | $1.95 |
| LT1763CDE-2.5#TR | DFN | 12 | C | $2.05 | |
| LT1763CDE-2.5#TRPBF | DFN | 12 | C | $2.05 | |
| LT1763CDE-3 | DFN | 12 | C | $2.79 | $1.95 |
| LT1763CDE-3#PBF | DFN | 12 | C | $2.79 | $1.95 |
| LT1763CDE-3#TR | DFN | 8 | C | $2.05 | |
| LT1763CDE-3#TRPBF | DFN | 8 | C | $2.05 | |
| LT1763CDE-3.3 | DFN | 12 | C | $2.79 | $1.95 |
| LT1763CDE-3.3#PBF | DFN | 12 | C | $2.79 | $1.95 |
| LT1763CDE-3.3#TR | DFN | 12 | C | $2.05 | |
| LT1763CDE-3.3#TRPBF | DFN | 12 | C | $2.05 | |
| LT1763CDE-5 | DFN | 12 | C | $2.79 | $1.95 |
| LT1763CDE-5#PBF | DFN | 12 | C | $2.79 | $1.95 |
| LT1763CDE-5#TR | DFN | 12 | C | $2.05 | |
| LT1763CDE-5#TRPBF | DFN | 12 | C | $2.05 | |
| LT1763CS8 | SO | 8 | C | $2.30 | $1.95 |
| LT1763CS8#PBF | SO | 8 | C | $2.30 | $1.95 |
| LT1763CS8#TR | SO | 8 | C | $2.01 | |
| LT1763CS8#TRPBF | SO | 8 | C | $2.01 | |
| LT1763CS8-1.5 | SO | 8 | C | $2.30 | $1.95 |
| LT1763CS8-1.5#PBF | SO | 8 | C | $2.30 | $1.95 |
| LT1763CS8-1.5#TR | SO | 8 | C | $2.01 | |
| LT1763CS8-1.5#TRPBF | SO | 8 | C | $2.01 | |
| LT1763CS8-1.8 | SO | 8 | C | $2.30 | $1.95 |
| LT1763CS8-1.8#PBF | SO | 8 | C | $2.30 | $1.95 |
| LT1763CS8-1.8#TR | SO | 8 | C | $2.01 | |
| LT1763CS8-1.8#TRPBF | SO | 8 | C | $2.01 | |
| LT1763CS8-2.5 | SO | 8 | C | $2.30 | $1.95 |
| LT1763CS8-2.5#PBF | SO | 8 | C | $2.30 | $1.95 |
| LT1763CS8-2.5#TR | SO | 8 | C | $2.01 | |
| LT1763CS8-2.5#TRPBF | SO | 8 | C | $2.01 | |
| LT1763CS8-3 | SO | 8 | C | $2.30 | $1.95 |
| LT1763CS8-3#PBF | SO | 8 | C | $2.30 | $1.95 |
| LT1763CS8-3#TR | SO | 8 | C | $2.01 | |
| LT1763CS8-3#TRPBF | SO | 8 | C | $2.01 | |
| LT1763CS8-3.3 | SO | 8 | C | $2.30 | $1.95 |
| LT1763CS8-3.3#PBF | SO | 8 | C | $2.30 | $1.95 |
| LT1763CS8-3.3#TR | SO | 8 | C | $2.01 | |
| LT1763CS8-3.3#TRPBF | SO | 8 | C | $2.01 | |
| LT1763CS8-5 | SO | 8 | C | $2.30 | $1.95 |
| LT1763CS8-5#PBF | SO | 8 | C | $2.30 | $1.95 |
| LT1763CS8-5#TR | SO | 8 | C | $2.01 | |
| LT1763CS8-5#TRPBF | SO | 7 | C | $2.01 | |
| LT1763IDE | DFN | 12 | I | $3.07 | $2.15 |
| LT1763IDE#PBF | DFN | 12 | I | $3.07 | $2.15 |
| LT1763IDE#TRPBF | DFN | 12 | I | $2.21 | |
| LT1763IDE-1.5 | DFN | 12 | I | $3.07 | $2.15 |
| LT1763IDE-1.5#PBF | DFN | 12 | I | $3.07 | $2.15 |
| LT1763IDE-1.5#TRPBF | DFN | 12 | I | $2.21 | |
| LT1763IDE-1.8#PBF | DFN | 12 | I | $3.07 | $2.15 |
| LT1763IDE-1.8#TRPBF | DFN | 12 | I | $2.21 | |
| LT1763IDE-2.5#PBF | DFN | 12 | I | $3.07 | $2.15 |
| LT1763IDE-2.5#TRPBF | DFN | 12 | I | $2.21 | |
| LT1763IDE-3#PBF | DFN | 12 | I | $3.07 | $2.15 |
| LT1763IDE-3#TRPBF | DFN | 12 | I | $2.21 | |
| LT1763IDE-3.3 | DFN | 12 | I | $3.07 | $2.15 |
| LT1763IDE-3.3#PBF | DFN | 12 | I | $3.07 | $2.15 |
| LT1763IDE-3.3#TRPBF | DFN | 12 | I | $2.21 | |
| LT1763IDE-5#PBF | DFN | 12 | I | $3.07 | $2.15 |
| LT1763IDE-5#TRPBF | DFN | 12 | I | $2.21 | |
| LT1763IS8#PBF | SO | 8 | I | $3.07 | $2.15 |
| LT1763IS8#TRPBF | SO | 8 | I | $2.21 | |
| LT1763IS8-1.5#PBF | SO | 8 | I | $3.07 | $2.15 |
| LT1763IS8-1.5#TRPBF | SO | 8 | I | $2.21 | |
| LT1763IS8-1.8#PBF | SO | 8 | I | $3.07 | $2.15 |
| LT1763IS8-1.8#TRPBF | SO | 8 | I | $2.21 | |
| LT1763IS8-2.5#PBF | SO | 8 | I | $3.07 | $2.15 |
| LT1763IS8-2.5#TRPBF | SO | 8 | I | $2.21 | |
| LT1763IS8-3#PBF | SO | 8 | I | $3.07 | $2.15 |
| LT1763IS8-3#TRPBF | SO | 8 | I | $2.21 | |
| LT1763IS8-3.3#PBF | SO | 8 | I | $3.07 | $2.15 |
| LT1763IS8-3.3#TRPBF | SO | 8 | I | $2.21 | |
| LT1763IS8-5#PBF | SO | 8 | I | $3.07 | $2.15 |
| LT1763IS8-5#TRPBF | SO | 8 | I | $2.21 | |
| LT1763MPDE | DFN | 12 | MP | ||
| LT1763MPDE#PBF | DFN | 12 | MP | $8.50 | $5.95 |
| LT1763MPDE#TR | DFN | 12 | MP | ||
| LT1763MPDE#TRPBF | DFN | 12 | MP | $6.01 | |
| LT1763MPDE-1.5 | DFN | 12 | MP | ||
| LT1763MPDE-1.5#PBF | DFN | 12 | MP | $8.50 | $5.95 |
| LT1763MPDE-1.5#TRPBF | DFN | 12 | MP | $6.01 | |
| LT1763MPDE-1.8#PBF | DFN | 12 | MP | $8.50 | $5.95 |
| LT1763MPDE-1.8#TRPBF | DFN | 12 | MP | $6.01 | |
| LT1763MPDE-2.5#PBF | DFN | 12 | MP | $8.50 | $5.95 |
| LT1763MPDE-2.5#TRPBF | DFN | 12 | MP | $6.01 | |
| LT1763MPDE-3#PBF | DFN | 12 | MP | $8.50 | $5.95 |
| LT1763MPDE-3#TRPBF | DFN | 12 | MP | $6.01 | |
| LT1763MPDE-3.3 | DFN | 12 | MP | ||
| LT1763MPDE-3.3#PBF | DFN | 12 | MP | $8.50 | $5.95 |
| LT1763MPDE-3.3#TRPBF | DFN | 12 | MP | $6.01 | |
| LT1763MPDE-5#PBF | DFN | 12 | MP | $8.50 | $5.95 |
| LT1763MPDE-5#TRPBF | DFN | 12 | MP | $6.01 | |
| LT1763MPS8 | SO | 8 | MP | $8.50 | $5.95 |
| LT1763MPS8#PBF | SO | 8 | MP | $8.50 | $5.95 |
| LT1763MPS8#TR | SO | 8 | MP | $6.01 | |
| LT1763MPS8#TRPBF | SO | 8 | MP | $6.01 |
演示电路板
| 器件型号 | 描述 |
| DC368A | LT1763CS8 | Low Noise LDO Regulator, 2.3-20Vin, Jmpr Sel Vout, 500mA @ 1.22,1.5,1.8,2.5,3.3, or 5Vout |
LT1763 数据手册及相关资料下载
- 数据手册(英文) : LT1763 - 500mA, Low Noise, LDO Micropower Regulators.PDF
- 应用指南 (英文) : AN101 - Minimizing Switching Regulator Residue in linear Regulator Outputs.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
- 可靠性数据 : R386 Reliability Data .PDF
- LT Journal : Dec 2005 Taking Full Advantage of Very Low Dropout linear Regulators.PDF
