LT1431 - 可编程基准
LT®1431 是一款可调型并联稳压器，具有 100mA 的电流吸收能力、0.4% 的初始基准电压容差和 0.3% 的典型温度稳定性。内置分压电阻器允许将 LT1431 配置成一个具有 1% 初始电压容差的 5V 并联稳压器，且无需额外的外部组件。通过增设两个外部电阻器，可以将输出电压设定为 2.5V 至 36V 之间的任意数值。100mA 的标称内部电流限值可通过采用一个外部电阻器来减小。 可为相关应用提供一个简化的 3 引脚版本 LT1431CZ / LT1431IZ 作为可调型基准，其引脚与 TL431 相兼容。
特点
典型应用  | 应用
封装信息    |
| 器件型号 | 封装 | 温度 | 价格 (以 1 ~ 99 片为批量) | 价格 (以 1000 片为批量) * |
|---|---|---|---|---|
| LT1431CN8#PBF | N-8 | C | $1.50 | $1.20 |
| LT1431CS8#PBF | SO-8 | C | $2.08 | $1.75 |
| LT1431CS8#TRPBF | SO-8 | C | $1.81 | |
| LT1431CZ#PBF | TO-92 | C | $1.35 | $1.05 |
| LT1431CZ#TRPBF | TO-92 | C | $1.11 | |
| LT1431IN8#PBF | N-8 | I | $1.92 | $1.55 |
| LT1431IS8#PBF | SO-8 | I | $2.67 | $2.20 |
| LT1431IS8#TRPBF | SO-8 | I | $2.26 | |
| LT1431IZ#PBF | TO-92 | I | $1.42 | $1.11 |
| LT1431IZ#TRPBF | TO-92 | I | $1.17 | |
| LT1431MJ8 | CERDIP-8 | M | $44.98 | $32.50 |
| LT1431MJ8#PBF | CERDIP-8 | M | $44.98 | $32.50 |
| LT1431MPS8#PBF | SO-8 | MP | $9.27 | $6.49 |
| LT1431MPS8#TR | SO-8 | MP | $6.55 | |
| LT1431MPS8#TRPBF | SO-8 | MP | $6.55 |
演示电路板
| 器件型号 | 描述 | 价格 |
|---|---|---|
| DC259A | LT1339, LTC1693, LT1431 Isolated Demo Board | Telecom Module, 36 to 72Vin, 5V or 3.3Vout @ 10A | 联系凌力尔特 |
- 可调的并联稳压器在 -55°C 至 150°C 结温范围内工作
- AN42 - Voltage Reference Circuit Collection
- AN46 - Efficiency and Power Characteristics of Switching Regulator Circuits
- AN62 - Data Acquisition Circuit Collection
- AN70 - A Monolithic Switching Regulator with 100µV Output Noise
- AN75 - Circuitry for Signal Conditioning and Power Conversion
- AN90 - Current Sources for Fiber Optic Lasers: A Compendium of Pleasant Current Events
- DN143 - Single IC, Power Factor Corrected, Off-Line Supply
- DN175 - Off-Line Low Noise Power Supply Does Not Require Filtering to Meet FCC Emission Requirements
- DN32 - A Simple Ultra-Low Dropout Regulator
- DN54 - A 4-Cell Ni-Cad Regulator/Charger for Notebook Computers
- R114 Reliability Data
- Sep 2003 Synchronous, Phase Modulated, Full Bridge Converter Targets Isolated High Power Applications
- Adjustable Shunt Regulator Operates Over a -55°C to 150°C Junction Temperature Range
- LT1431 Footprints and Symbols
- LT1431 Demo Circuit - 5V Power Supply Monitor with ±500mV Window and 50mV Hysteresis
- LT3753/LT1431 Demo Circuit - 80W Active Clamp Non-Synchronous Forword Converter for PoE
- LT8310/LT1431 Demo Circuit - 72 Watt Isolated Nonsynchronous Forward Converter with Opto Feedback (36-72V to 12V @ 6A)
- LT8310/LT1431 Demo Circuit - 81 Watt Isolated Nonsynchronous Forward Converter with Opto Feedback (10.8-26.4V to 54V @ 1.5A)
- LT8310/LT1431 Demo Circuit - 92W Isolated Nonsynchronous Forward Converter with Opto Feedback (43-53V to 54V @ 1.7A)
- LTC3723-1/LT1431 Demo Circuit - 130W High Efficiency Isolated Non-Synchronous Push-Pull Converter (34-38V to 50V @ 2.6A)
