MP2187GQA-Z

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The MP2187GQA-Z is a DC-DC switching regulator and a member of PMIC’s voltage regulator series. It is designed to provide cost-effective power conversion solution to mobile and embedded system applications. This device integrates PWM control, high-side / low-side MOSFETs, output current limiting, thermal protection, output voltage monitoring, and low output noise.

This chip is a buck-boost converter with 1 A steady state biased output current, with input voltage range from 2.7 V to 5.5 V. It features an adjustable, fixed-frequency and current-mode PWM control for better dynamic response and transient situation. The current-mode control is infinitesimally improved with enhanced respond time and extended frequency range by combining an internally fixed frequency oscillator and an external ramp compensation. This MP2187GQA-Z is capable of operating from the input terminal with either a positive or negative voltage, and can provide output voltage up to 12 V. This feature helps the chip to be used for charging two-cell Li-ion battery, providing battery conditioning and chargers requiring wide voltage range regulation.

The MP2187GQA-Z utilizes an integrated high-side and low-side P-channel MOSFETs, allowing the buck-boost converter to use the voltage present in the input power source to control the PWM duty cycle without requiring any additional voltage or current source. This eliminates the need of an external power source, saving cost, space and power in PCB layout.

This chip provides excellent output voltage regulation. It regulates output voltage over a wide input voltage range and prevents shift of output voltage due to load transients. To ensure reliable operation and excellent output voltage regulation, it features input voltage monitoring, output voltage monitoring and thermal protection. In addition, the input voltage drop-off protection, low ripple current and fast transient response characteristics help the chip to meet even the stringent system requirements.

The chip also features adjustable over-voltage protection, programmable soft start, programmable power-on reset, programmable current limiting protection, and shutdown mode. These features further help the chip to be used for applications like battery management, DC-DC power supply, microprocessor and digital ASIC power supplies, motor control, and motor drive applications.

In summary, the MP2187GQA-Z is a DC-DC switching regulator designed to provide cost-effective power conversion solutions to mobile and embedded system applications. It features a high-performance buck-boost converter, adjustable, fixed-frequency current-mode PWM control, integrated high-side and low-side MOSFETs, and excellent output voltage regulation. This chip helps to eliminate the need of an external power source, saves cost, space, and power in PCB layout, and provides superior system reliability, excellent transient response, and accurate voltage regulation. Consequently, the MP2187GQA-Z is ideal for battery management, DC-DC power supply, motor control, and motor drive applications.

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