BD8150KVT-E2

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Power management devices, or PMICs, are used in a broad range of electronic systems and consumer products. PMICs range from individual components, such as voltage regulators and point-of-load modules, to complete PMIC solutions with integrated devices. These solutions are designed to minimize system power consumption while supplying the desired Supply Rail voltages.

The BD8150KVT-E2 is a high-end, multi-phase PMIC solution from ROHM Semiconductor. This PMIC is a part of their “K Series” PMIC and is specifically designed for mobile and embedded applications such as mobile phones, tablets, wearables, etc. The BD8150KVT-E2 features a digitally-controlled buck converter that offers tight, low-noise voltage regulation, high efficiency and fast transient response.

Overview

The BD8150KVT-E2 is an integrated, highly efficient PMIC solution that integrates five power supply channels in one device. The device has two buck converters that can be independently programmed. It also integrates a low-noise linear regulator and a digital voltage controller (DVC). In addition to the three previously mentioned voltage converters, the BD8150KVT-E2 also supports a low-side switch to control a power supply rail and a low-side load switch.

The BD8150KVT-E2 is available in a compact FBGA package that has a small footprint, which makes it ideal for mobile and embedded applications. The device is capable of delivering up to 8A of total output current with a maximum input voltage of 4.5V. The BD8150KVT-E2 also supports up to five external PWM dimming signals, which makes it a great choice for display and light dimming applications that require accurate voltage regulation.

Application Field

The BD8150KVT-E2 is suitable for a variety of mobile, consumer and embedded applications including smartphones, wearables, automotive, gaming consoles and digital signage. The PMIC also has a wide input voltage range of 1.8V to 4.5V, making it suitable for applications that require flexible power source selection. The BD8150KVT-E2 also supports up to five external PWM dimming signals, which makes it an ideal choice for display and light dimming applications that require accurate voltage regulation.

The device also features a wide operating temperature range of -40°C to +105°C, which makes it suitable for high temperature applications such as automotive and avionics.

Working Principle

The BD8150KVT-E2 works on a single-input power supply system. It has two buck converters that can be independently programmed to generate different voltage rail outputs. The device also supports a digital voltage controller (DVC) and a low-side switch to control a power supply rail and a low-side load switch.

The BD8150KVT-E2 also offers an “Active Discharge” feature that quickly discharges the output voltage when the device is disabled or in standby mode. The device also offers over-current and over-temperature protection. It has an internal “Soft Start” function that limits inrush current at start-up. The PMIC also has a “Spread Spectrum” feature that reduces conducted EMI from switching noise.

In addition, the BD8150KVT-E2 features optimized voltage sequencing for sequencing multiple output supplies. The sequencing order can be programmed by the user. The device also has a “Power Good” output that indicates when all the rails within the device have settled to their programmed values. The device is also capable of communicating with an I2C, UART or SPI interface.

Conclusion

The BD8150KVT-E2 is a high-end, multi-phase PMIC solution from ROHM Semiconductor that is ideal for mobile, embedded and automotive applications. The device features a digitally-controlled buck converter that offers tight, low-noise voltage regulation, high efficiency and fast transient response. The device also has a wide operating temperature range and features various protection features such as over-current, over-temperature, active discharge and spread-spectrum. The device also supports up to five external PWM dimming signals, making it an ideal choice for display and light dimming applications.

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