LX8385A-05集成电路（IC）的线性+开关稳压器规格书PDF中文资料

LX8385A-05属于集成电路（IC）的线性+开关稳压器。由美高森美公司制造生产的LX8385A-05稳压器 - 线性线性稳压器用于提供稳定的输出电压，无论负载电流、输入电压或环境因素如何变化，这些输出电压通常都要保持不变。它们的工作原理要求输入电压维持在高于所需的输出电压，而且要超出某个最小量，并且在工作时会将输入端的任何多余电压转换为热量。对于大多数应用而言，虽然这种稳压器的效率低于开关模式的稳压器，但它们通常更适合对噪声高度敏感的应用。

DESCRIPTION

The LX8385/8385A/8385B series ICs are positive regulators designed to provide 3A output current. Each regulator yields higher efficiency than currently available devices with all internal circuitry designed to operate down to a 1V input-to-outputdifferential. In these products, the dropout voltage is fully specified as a function of load current. The LX8385s dropout is guaranteed at a maximum of 1.5V at maximum output current, decreasing at lower load currents. The LX8385A/85B have a maximum dropout voltage of 1.3V.

KEY FEATURES

■ Three-Terminal Adjustable Or Fixed Output Voltage

■ Guaranteed 1 Voltage Reference Accuracy Over Line, Load And Temperature (LX8385B)

■ Guaranteed < 1.5V Headroom At 3A (LX8385)

■ Guaranteed < 1.3V Headroom At 3A (LX8385A/8385B)

■ Output Current Of 3A Minimum

□ 0.015 Line Regulation

□ 0.1 Load Regulation

APPLICATIONS

■ High Efficiency Linear Regulators

■ Post Regulators For Switching Power Supplies

■ Battery Chargers

■ Constant Current Regulators

■ Graphics & Standard Supplies

■ Processor I/O Supply

■ Low Voltage Memory & Chipset Supplies