恒定电流源可采用诸多标准模拟构件来设计，包括运算放大器、LED 驱动器和电池充电器。凌力尔特还提供了一个专用恒定电流源系列，该系列提供了使用和设计的简易性、电压、电流和热保护功能、以及内置电流限制
电流源| Product | Vin Min (V) | Vin Max (V) | Output Current Range | Isupply (mA) | Features | Comments | Extended Temp | Packages | ||
| LM334S | 0.8 | 30 | 1uA to 10mA | 0.28 | Reverse Current Protection | Constant Current Source and Temperature Sensor | C | TO-92, SO-8 | ||
| LT3080 | 1.2 | 36 | 0 to 1000mA | 0.3 | Current Limiting, Thermal Protection | Adjustable 1.1A Single Resistor Low Dropout Regulator | E, I | MS-8, DFN-8, TO-220, SOT-223 | ||
| LT3080-1 | 1.2 | 36 | 0 to 2200mA | 0.3 | Current Limiting, Thermal Protection | Parallelable 1.1A Adjustable Single Resistor Low Dropout Regulator | E, I | MS-8, DFN-8 | ||
| LT3080-1 | 1.2 | 36 | 0 to 3300mA | 0.3 | Current Limiting, Thermal Protection | Parallelable 1.1A Adjustable Single Resistor Low Dropout Regulator | E, I | MS-8, DFN-8 | ||
| LT3085 | 1.2 | 36 | 0 to 500mA | 0.3 | Current Limiting, Thermal Protection | Adjustable 500mA Single Resistor Low Dropout Regulator | E, I, MP | DFN-6, MS-8 | ||
| LT3092 | 1.2 | 40 | 0.5mA to 200mA | 0.3 | Reverse Voltage Protection, Reverse Current Protection, Current Limiting, Thermal Protection | 200mA Two-Terminal Programmable Current Source | E, I, MP | SOT-23, DFN-8, SOT-223 | ||
| LTM8040 | 4 | 36 | 35mA to 1000mA | 2.6 | Programmable Output Current, Constant Current Constant Voltage | 36V, 1A 碌Module LED Driver | E, I | 15mm x 9mm x 4.32mm LGA | ||
| LTM8042 | 3 | 30 | 35mA to 1000mA | 4.2 | Constant Current Constant Voltage, True Color PWM Dimming, Soft Start | uModule Multi-Topology 1A CC/CV LED Driver or Current Source | E, I | 9mm x 15mm x 2.82mm LGA | ||
| LTM8042 | 3 | 30 | 35mA to 350mA | 4.2 | Constant Current Constant Voltage, True Color PWM Dimming, Soft Start | uModule Multi-Topology 350mA CC/CV LED Driver or Current Source | E, I | 9mm x 15mm x 2.82mm LGA | ||
