General Description

The BUxxJA3DG-C series are linear regulators designed

as low current consumption products for power supplies in

various automotive applications.

These products are designed for up to 6.5 V as an absolute

maximum voltage and to operate until 300 mA for the

output current with low current consumption 37 μA (Typ).

These can regulate the output with a very high accuracy,

±2 . These regulators are therefore an ideal for any

applications requiring a low current consumption.

A logical “HIGH” at the EN pin turns on the device, and in

the other side, the devices are controlled to disable by a

logical “LOW” input to the EN pin.

The devices feature the integrated Over Current Protection

to protect the device from a damage caused by a shortcircuiting

or an overload. These products also integrate

Thermal Shutdown Protection to avoid the damage by

overheating.

Furthermore, low ESR ceramic capacitors are sufficiently

applicable for the phase compensation.

Features

◼ AEC-Q100 Qualified(Note 1)

◼ Output Shutdown Function (EN Function)

◼ Over Current Protection (OCP)

◼ Thermal Shutdown Protection (TSD)

(Note 1) Grade 1

Applications

◼ Automotive (Power Train, Body ECU, Infotainment,

Cluster, etc.)

BU18JA3DG-CTR属于集成电路（IC） > 线性 + 开关稳压器。罗姆半导体集团制造生产的BU18JA3DG-CTR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。