BD3940FP-E2中文資料Power Management LSI Series for Automotive Body Control數(shù)據(jù)手冊(cè)ROHM規(guī)格書

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 ?(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.

簡介

BD3940FP-E2屬于集成電路（IC）的線性+開關(guān)穩(wěn)壓器。由ROHM制造生產(chǎn)的BD3940FP-E2穩(wěn)壓器 - 線性線性穩(wěn)壓器用于提供穩(wěn)定的輸出電壓，無論負(fù)載電流、輸入電壓或環(huán)境因素如何變化，這些輸出電壓通常都要保持不變。它們的工作原理要求輸入電壓維持在高于所需的輸出電壓，而且要超出某個(gè)最小量，并且在工作時(shí)會(huì)將輸入端的任何多余電壓轉(zhuǎn)換為熱量。對(duì)于大多數(shù)應(yīng)用而言，雖然這種穩(wěn)壓器的效率低于開關(guān)模式的穩(wěn)壓器，但它們通常更適合對(duì)噪聲高度敏感的應(yīng)用。