MCP19123-E/MQ

The MCP19123-E/MQ is a fixed frequency, step-down switching regulator controller from Microchip. It is the controller behind a calibrated buck (step-down) regulator in single or dual output modes. The device is a member of the Peripheral Measurement IC (PMIC) - Voltage Regulators - DC DC Switching Controllers family.

The MCP19123-E/MQ is cost-effective, low power and supports a wide output voltage range. It is designed with high efficient power conversion technology and is optimized for a wide range of input conditions. With its single package, it supports high current output up to 60A with excellent thermal performance.

The device integrates a fixed frequency current mode PWM controller, a synchronous rectifier driver, two output current sensing circuits, and an internal soft-start as well as other useful features and ease of use. The current mode control enables good transient response and fast loop response.

The MCP19123-E/MQ is designed to reduce output noise and improve EMI performance by using spread spectrum operation from its internal PWM switch or from an external clock. It also provides adjustable soft start and precise current limit control.

The MCP19123-E/MQ is available in different packages and offers output voltage range selection through an externally connected resistor divider. It is protected from over-current, over-temperature and dual output UVLO. It supports power sequencing and monitoring functions including output voltage, current, power and temperature. It has a low input voltage boost feature that increases the system efficiency. The device is RoHS compliant and has a lead-free finish.

In summary, the MCP19123-E/MQ is a cost effective, low power, wide output voltage range switching regulator controller that is designed with high efficient power conversion technology and is optimized for a wide range of input conditions. It is protected from various fault conditions and offers multiple sensing and monitoring features. It is available in various packages and is RoHS compliant.