BU12JA3DG-C (新产品)
300mA 1.2V, CMOS LDO Regulators for Automotive
BU12JA3DG-C
BU12JA3DG-C (新产品)
300mA 1.2V, CMOS LDO Regulators for Automotive
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 6.5V as an absolute maximum voltage and to operate until 300mA for the output current with low current consumption 37µA (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.
主要规格
功能安全:
类别 : FS supportive
A product that has been developed for automotive use and is capable of supporting safety analysis with regard to the functional safety.
特性：
Breakdown Voltage(Max.)[V]
6.5
ch
1
Vin(Min.)[V]
1.7
Vin(Max.)[V]
6
Vout (Typ.) [V]
1.2
Vout Precision
±2.0%
Iout(Max.)[A]
0.3
Circuit Current[mA]
0.037
Shutdown Function
Yes
Thermal Shut-down
Yes
Over Current Protection
Yes
Over Voltage Protection
No
Discharge Function
Yes
Soft Start
No
Ripple Rejection [dB]
60
Input Capacitor[µF]
0.1
Output Capacitor[µF]
0.47
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
150
Package Size
2.9x2.8 (t=1.25)
Common Standard
AEC-Q100 (Automotive Grade)
特点：
- AEC-Q100 Qualified(Grade 1)
- Output Shutdown Function (EN Function)
- Over Current Protection (OCP)
- Thermal Shutdown Protection (TSD)
产品概要
背景
近年来，在汽车领域，随着事故防止和自动驾驶技术的创新，对安全性能的要求日益提高。与此同时，车载ADAS中搭载的传感器和雷达的性能越来越高（为提高处理能力而提高电流、为省电而降低电压），这就要求向它们供电的电源IC尺寸更小，并能支持更大的电流。
ROHM利用所拥有的DC-DC转换器IC和LDO稳压器丰富的产品阵容，为汽车领域的ECU（电子控制单元）和ADAS等广泛的车载应用提供节能和小型化解决方案。为了满足性能日益提升的ADAS传感器等的电源需求，此次ROHM又开发出在输出电流方面表现出色的低输出噪声小型LDO稳压器系列产品。
概要
“BUxxJA3DG-C系列”作为针对车载领域的二次侧电源应用而开发的LDO稳压器，满足应用产品对小尺寸、标准输出电压扩展等方面的基本要求。此外，尽管产品尺寸非常小（2.9mm×2.8mm），却支持高达300mA的输出电流，同时还覆盖了下限低至1.7V的输入电压范围，这在同等LDO系列中是很少见的，所以产品也适用于1.8V的电源系统。不仅如此，在输出噪声较低的LDO稳压器中，其噪声仅为55µVrms，比普通产品低约40%（输出电压为3.3V的产品相比），可用于需要更纯净电源的应用，有助于ADAS传感器和雷达等的小型化和性能提升。
应用示例
◇传感器、雷达、摄像头等车载ADAS系统相关
◇仪表盘、抬头显示器（HUD）等信息娱乐系统相关
适用于对噪声敏感的车载产品的二次侧电源以及其他广泛的应用领域。
