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PMIC - Voltage Regulators - DC DC Switching Regulators

The MP2158AGQH-Z is a DC-DC Switching Regulator from STMicroelectronics. It is used as a DC-DC buck and boost regulator in various applications, allowing for the conversion of DC power to different loads with different voltages. This specific switching regulator is capable of up to 2A output current with a high accuracy of ± 2%, making it suitable for a wide range of applications, from consumer electronics to automotive and industrial systems.

Application field

The MP2158AGQH-Z can be used for many applications, including but not limited to:

• Power conversion in consumer electronics
• Battery charging solutions
• Power management in mobile electronics
• Industrial power supply
• DC/DC conversion in automotive applications
• Sensor supply power solutions
• IoT devices
• Power enable and disable circuits

Working principle

The MP2158AGQH-Z works as a buck-boost regulator by using a high-frequency voltage transformer, an internal or external rectifier, an adaptive ground sensed error amplifier, and current regulation circuits. By using this method, the output voltage from the device can be varied from 0.8V up to 5.5V with a minimum load current requirement of 1 mA and a minimal current output ripple of 20%.

The device\'s integrated power MOSFETs can handle up to 2A of peak output current with a slew rate of up to 5A/μs, making it suitable for high dynamic loads. The device also features a programmable under-voltage lockout (UVLO), output short circuit protection, over-voltage protection (OVP), and over-temperature protection (OTP).

The MP2158AGQH-Z is a versatile DC-DC switching regulator that allows for the efficient conversion of different source voltages and output currents with minimal effort. Its wide range of features make it an excellent choice for many applications.

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