LT3081 - 具监视器的 1.5A 单电阻器坚固型线性稳压器
LT®3081 是一款 1.5A 低压差线性稳压器，专为坚固型工业应用而设计。该 IC 的主要特点是扩展的安全工作区 (SOA)、输出电流监视器、温度监视器和可编程电流限值。LT3081 可通过并联以提供较高的输出电流或散热量。这款器件能承受反向输入和反向输出至输入电压，并且没有反向电流。
LT3081 精准的 50μA 基准电流源允许利用单个电阻器将输出电压设置在介于 0V 至 34.5V 之间的任意电平。电流基准架构使得负载调整不受输出电压的影响。LT3081 可在采用或不采用输入和输出电容器的情况下实现稳定。
输出电流监视器 (IOUT/5000) 和芯片结温输出 (1μA/°C) 提供了系统监视和调试能力。此外，还可利用单个电阻器来设置电流限值。
内部保护电路包括反向电池和反向电流保护以及电流限制和热限制。LT3081 采用 16 引线 TSSOP (具有裸露衬垫以实现更加优良的热性能)、7 引线 TO-220、7 引线 DD-Pak 和 12 引线 4mm x 4mm DFN 封装。
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) * |
|---|---|---|---|---|
| LT3081EDF#PBF | 4x4 DFN-12 | E | $3.71 | $2.60 |
| LT3081EDF#TRPBF | 4x4 DFN-12 | E | $2.66 | |
| LT3081EFE#PBF | TSSOP-16 | E | $3.82 | $2.67 |
| LT3081EFE#TRPBF | TSSOP-16 | E | $2.73 | |
| LT3081ER#PBF | DDPAK-7 | E | $4.10 | $2.87 |
| LT3081ER#TRPBF | DDPAK-7 | E | $2.93 | |
| LT3081ET7#06PBF | TO-220 | E | $4.10 | $2.87 |
| LT3081ET7#PBF | TO-220 | E | $4.10 | $2.87 |
| LT3081HFE#PBF | TSSOP-16 | H | $4.86 | $3.40 |
| LT3081HFE#TRPBF | TSSOP-16 | H | $3.46 | |
| LT3081HT7#PBF | TO-220 | H | $5.19 | $3.63 |
| LT3081IDF#PBF | 4x4 DFN-12 | I | $4.27 | $2.99 |
| LT3081IDF#TRPBF | 4x4 DFN-12 | I | $3.05 | |
| LT3081IFE#PBF | TSSOP-16 | I | $4.39 | $3.07 |
| LT3081IFE#TRPBF | TSSOP-16 | I | $3.13 | |
| LT3081IR#PBF | DDPAK-7 | I | $4.71 | $3.30 |
| LT3081IR#TRPBF | DDPAK-7 | I | $3.36 | |
| LT3081IT7#PBF | TO-220 | I | $4.71 | $3.30 |
| LT3081MPFE#PBF | TSSOP-16 | MP | $10.29 | $7.20 |
| LT3081MPFE#TRPBF | TSSOP-16 | MP | $7.26 | |
| LT3081MPT7#PBF | TO-220 | MP | $11.06 | $7.74 |
演示电路板
| 器件型号 | 描述 | 价格 |
|---|---|---|
| DC1870A | LT3081EFE Demo Board | Single Resistor Rugged Linear Regulator with Monitors, 2.8V ≤ VIN ≤ 36V, Vout = 1.2V/1.5V/1.8V/2.5V/3.3V/5V/12V @ 1.5A | $150.00 |
| DC2132A | 24V 3A Constant Voltage, Constant Current Bench Supply Featuring LT3081, LT8612, LT3092 | $200.00 |
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- LT3081 Demo Circuit - Wide Safe Operating Area Supply (2.7-40V to 1.5V @ 1.5A)
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- LT3081/LT8612/LTC3632/LT3092 Demo Circuit - Constant Voltage, Constant Current Bench Supply (10-40V to 0-25V @ 0-3.1A)
