World's first analog-based power management controller with integrated MCU delivers flexible, efficient power conversion

January 28, 2013 // By Paul Buckley
Microchip is claiming the world’s first digitally enhanced power analog controller with the launch of a device that will expand the scope of Microchip’s diverse range of intelligent DC/DC power-conversion solutions. 

The MCP19111 digitally enhanced power analog family operates across a wide voltage range of 4.5 to 32 V and offers an increase in flexibility compared with conventional analog-based solutions.  The device offers the world’s first hybrid, mixed-signal power-management controller, integrating an analog-based PWM controller with a fully functional Flash-based microcontroller. 

Microchip's new single-chip solution aims to reduce design complexity,  component count, and footprint.  The device's integration capabilities are claimed to enable a greater degree of configurability.

To support the new power analog controller Microchip is also extending the company's high-speed MOSFET family, with the new MCP87018, MCP87030, MCP87090 and MCP87130.  Rated at 25 V, the 1.8 mΩ, 3 mΩ, 9 mΩ and 13 mΩ logic-level MOSFETs are optimized for Switched-Mode-Power-Supply (SMPS) applications.  

The combination of the MCP19111 digitally enhanced power analog controller, a new hybrid, digital and analog power-management device, and the expanded MCP87XXX family of low-Figure-of-Merit (FOM) MOSFETs, supports configurable, high-efficiency DC/DC power-conversion designs for a broad array of consumer and industrial applications.

The integration offers the flexibility of a digital solution, with the speed, performance and resolution of an analog-based controller.  The MCP19111 devices support operation up to 32 V, and have integrated MOSFET drivers configured for synchronous, step-down applications.  When combined with Microchip’s expanded family of high-speed MOSFETs, the MCP19111 drives customisable, high-efficiency power conversion.

Advanced featuresof the MCP19111 include a fully programmable MCU which  enables design engineers to optimize custom IP capabilities.  Other features include configurable analog capabilities and an I 2C communication interface which is PMBus compliant.

"It is a single-chip solution," explained Stephen Stella, Microchip's Product Marketing Manager Analog & Interface Products.  "We have a high-voltage, Flash-capable process that enables the microcontroller.  It also enables cost-efficient analog while enabling a high-voltage device (more than 5 V).  From an industry standpoint it probably is regarded as operating in a mid-voltage type range operating across  4.5 V to 32 V.  When we remove the