DESCRIPTION

The LX6431 series precision adjustable three terminal shunt voltage regulators are pin-to-pin compatible with the industry standard TL431, but with significant improvements. The LX6431 design has eliminated regions of instability common to older generation shunt regulator products like the TL431. Designs are made simpler by eliminating the task of insuring capacitive loads, and output voltage and cathode currents don’t combine for unstable operation. The capacitor value is chose simply to give the best load transient response without the possibility of instability.

KEY FEATURES

■ Unconditionally Stable for All Cathode To Anode Capacitance Values

■ Reduced Reference Input Current Allowing The Use of Higher Value Divider Resistors (0.5µA)

■ Initial Voltage Reference Accuracy of 0.4 (LX6431B)

■ Sink Current Capability 0.6mA to 100mA

■ Typical Output Dynamic Impedance Less Than 100mΩ

■ Adjustable Output Voltage From 2.5V to 36V

LX6431CDM属于集成电路（IC） > 电压基准。美高森美公司制造生产的LX6431CDM电压基准产品属于基准电压源系列，可通过相对较不稳定的电源提供稳定的电势，电压值始终保持恒定，以便在测量、控制和类似应用中用作比较的标准。其功能行为可能与用于大功率调节的线性稳压器相似，但基准电压源器件却不适合用于此类用途。用作比较标准时，若输出电流容量或实际负载电流增大，其性能通常会降低。