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 100m?

■ Adjustable Output Voltage From 2.5V to 36V

LX6431BIDM屬于集成電路（IC） > 電壓基準。美高森美公司制造生產(chǎn)的LX6431BIDM電壓基準產(chǎn)品屬于基準電壓源系列，可通過相對較不穩(wěn)定的電源提供穩(wěn)定的電勢，電壓值始終保持恒定，以便在測量、控制和類似應用中用作比較的標準。其功能行為可能與用于大功率調(diào)節(jié)的線性穩(wěn)壓器相似，但基準電壓源器件卻不適合用于此類用途。用作比較標準時，若輸出電流容量或?qū)嶋H負載電流增大，其性能通常會降低。