BU18SD5集成电路（IC）的线性+开关稳压器规格书PDF中文资料

BU18SD5属于集成电路（IC）的线性+开关稳压器。由罗姆半导体集团制造生产的BU18SD5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。

●General Description

BUxxSD5 series are high-performance CMOS LDO

regulators with output current ability of up to 500mA.

These devices have excellent noise and load response

characteristics despite of its low circuit current

consumption of 33μA. They are most appropriate for

various applications such as power supplies for logic IC,

RF, and camera modules.

●Features

 High Output Voltage Accuracy: 2.0

(In all recommended conditions)

 High Ripple Rejection: TYP;68dB(f=1KHz)

 Compatible with small ceramic capacitor

(Cin=Cout=0.47 μF, min)

 Low Current Consumption: 33 μA

 Output Voltage ON/OFF control

 Built-in Over Current Protection Circuit (OCP)

 Built-in Thermal Shutdown Circuit (TSD)

 Package SSOP5 is similar to SOT23-5(JEDEC)

●Applications

 Portable devices

 Camera modules

 Other electronic devices using microcontrollers or

logic circuits