BD3940FP-E2中文资料Power Management LSI Series for Automotive Body Control数据手册ROHM规格书

描述 Description

LDO RegulatorDescription
BD394□FP Series regulators feature a high 36 V breakdown voltage and are compatible with onboard vehicle microcontrollers. They offer an output current of 500 mA while limiting dark current to 30 µA (TYP). The series supports the use of ceramic capacitors as output phase
compensation capacitors. Since the ICs use P-channel DMOS output transistors, increased loads do not result in increased total supply current. BD394□FP Series is ideal for lowering current consumption and costs in battery direct-coupled systems.

特性 Features

1)  Super-low dark current: 30 µA (Typ.)
2)  Low-saturation voltage type P-channel DMOS output transistors
    Output on resistance: 1.6 Ω(Typ.)
3)  High precision output voltage: 5 V ±2% (Ta = 25°C) / Iomax = 500 mA
4)  Low-ESR ceramic capacitors can be used as output capacitors
5)  Vcc power supply voltage = 36 V / Peak power supply voltage = 50 V (tr ≥1 ms, tH ≤200 ms)
6)  Built-in over current protection circuit and thermal shutdown circuit
7) TO252-3/HRP-5/TO220FP-3 packageApplications
Vehicle equipment, car stereos, satellite navigation systems, etc.

简介

BD3940FP-E2属于集成电路（IC）的线性+开关稳压器。由制造生产的BD3940FP-E2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。