BA178M18FP-E2

Current - Output:	500mA
Base Part Number:	BA178M
Supplier Device Package:	TO-252-3
Package / Case:	TO-252-3, DPak (2 Leads + Tab), SC-63
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Protection Features:	--
Control Features:	--
PSRR:	58dB (120Hz)
Current - Supply (Max):	6mA
Current - Quiescent (Iq):	4.5mA
Series:	--
Voltage Dropout (Max):	2V @ 500mA (Typ)
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	18V
Voltage - Input (Max):	33V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tape & Reel (TR)

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PMIC - Voltage Regulators - Linear

The BA178M18FP-E2 is a linear voltage regulator, part of a series of voltage controllers produced by ROHM Semiconductor which ranges from 800mA to 1.2A. It features an LDO (Low Drop Out) structure which allows it to maintain better output stability with only a slight voltage drop. The BA178M18FP-E2 has a wide input range from 1.7V to 15V and a built in output selector switch allowing for multiple output voltage options, making it ideal for those looking for a customizable voltage regulator.This voltage regulator is specifically designed for automotive applications, and it’s equipped with protection functions that can withstand adverse conditions such as over-voltage, over-current and short-circuit protection. It has a fast transient response and its loop gain is carefully designed to minimize output voltage deviation during dynamic loading. This device also has superior output accuracy at a ±1% temperature range from -40 to 125°C.The BA178M18FP-E2 is an excellent choice for automotive applications that require precise control and precise distribution of power to the system. Its ability to provide precise adjustment of DC power and audio signals makes it an ideal solution for automotive audio systems, and its low dropout voltage is perfect for vehicular start/stop systems.Its wide input voltage range of 1.7V to 15V makes it a great option for applications such as the power supply for electronic devices and the power supply for automotive electronics. Its wide range of output voltage levels make it suitable for powering a variety of circuits and microprocessors, as it prevents voltage drops in the power supply. In addition, this device is also suitable for microcontroller systems, where its fast transient response ensures a stable power supply with no voltage deviation.The BA178M18FP-E2 voltage regulator includes both temperature compensation and single-and dual-Channel Synchronous Rectification features, which enhances the efficiency of power consumption. The device also includes an internally controlled Selectable Output Voltage Selector switch, which provides up to 15 output voltage levels. This ensures higher output current stability under all operating conditions.The working principle of the BA178M18FP-E2 is based on an integrated, error amplifier-controlled loop. This loop works by sensing changes in voltage at the output and adjusts the gain, allowing for precise and smooth regulation of the output voltage, even in the most challenging conditions. The error amplifier compares the output voltage to a reference voltage, and then adjusts the drive on a pass element according to the difference. The pass element is connected to either an external field effect transistor (FET) or a series connected p-channel MOSFET. The output voltage is then regulated by the amount of the drive voltage from the error amplifier.The BA178M18FP-E2 offers low-power consumption, low-dropout voltage, and fast transient response capabilities that make it suitable for automotive applications. Its wide input and output voltage ranges, temperature compensation features, and built-in selector switches provide precision DC control and power distribution. This makes it an ideal device for applications that require different voltage options as well as precise and reliable power regulation.

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