BD9A302QWZ-E2

BD9A302QWZ-E2 is an integrated circuit designed and manufactured by Rohm Semiconductor. It belongs to PMIC – Voltage Regulators – DC DC Switching Regulators, and is a low dropout voltage regulator with pulse-width modulation (PWM) control for applications that require high efficiency. It features a wide operating range of 1.2V to 5.5V and a light load quiescent current of 2.2mA. It is capable of providing a fast transient response with a wide output voltage range of 1.2V to 5V, with a maximum output current of 300mA.

Features

The BD9A302QWZ-E2 has a number of features, including:

• Wide operating range of 1.2V to 5.5V
• Light load quiescent current of 2.2mA
• Excellent load and line regulation
• Integrated low on-resistance PMOS pass FET switch
• External Soft Start capability
• Frequency setting adjustable pin has adjustable frequency of 200kHz to 2MHz
• Programmable current limit
• Thermal Shutdown protection
• Under-Voltage Lockout protection with hysteresis
• Compatible with RoHS and Green standards

Application Field and Working Principle

The BD9A302QWZ-E2 integrated circuit can be used in many different applications, such as in mobile phones, notebooks, laptops and other portable devices that require a low dropout voltage regulator. It can also be used in applications such as LED lighting and LCD displays that require high efficiency and fast transient response.

The BD9A302QWZ-E2 is an integrated low dropout voltage regulator with pulse-width modulation (PWM) control. It is designed to provide high efficiency while maintaining a fast transient response and a wide output voltage range. It uses a PMOS pass FET switch to deliver a high-efficiency regulator solution. The adjustable frequency pin has an adjustable frequency range of 200kHz to 2MHz. Furthermore, an integrated Soft Start circuit can be enabled with a single external resistor.

The BD9A302QWZ-E2 also has an integrated under-voltage lockout (UVLO) circuit with hysteresis, as well as a programmable current limit circuit and a thermal shutdown circuit to protect the device from temperature overload. It has excellent load and line regulation, and is compatible with RoHS and Green standards.

Conclusion

The BD9A302QWZ-E2 integrated circuit, designed and manufactured by Rohm Semiconductor, is a low dropout voltage regulator with pulse-width modulation (PWM) control. It is suitable for a wide range of applications, and is capable of providing high efficiency while maintaining a fast transient response and a wide output voltage range. Furthermore, it features an integrated Soft Start circuit, UVLO circuit, programmable current limit and thermal shutdown protection to guard against temperature overload, as well as excellent load and line regulation and RoHS and Green standards compliance.