Microchip MIC21000

Description

The MIC21000 is a configurable true-digital PWM controller for high-current, non-isolated DC/DC power supplies in computing and telecom applications. The MIC21000 is designed to drive industry-standard DrMOS devices therefore current capability can be easily scaled.

The MIC21000 integrates a digital control loop, optimized for maximum flexibility and stability, as well as load step and steady-state performance. In addition, a rich set of protection and monitoring functions are provided. The on-chip, non-volatile memory (NVM) and an I2C/PMBus™ interface facilitate communication and configuration.

The PC-based Micrel Digital Designer Graphical User Interface (GUI) provides a user-friendly and easy-to-use interface to the device for communication and configuration. It can guide the user through the design of the digital compensator and offers intuitive configuration methods for additional features, such as protection and sequencing.

The MIC21000 is offered in a compact and thermally efficient 24-pin 4mm x 4mm QFN package.

Features

• Small solution size and low system cost
• Ultra-fast transient response to reduce output capacitance
• Non-linear control to improve transient performance
• High accuracy and performance
• Optimized steady-stateperformance
• High-resolution DAC for output
• High power efficiency with power modules
• Fast time to market
• Programmable control loop to tailor transient response
• Design flexibility with Micrel
• Digital Designer GUISystem management and diagnosticsDigital communication though PMBus™
• System-level integration with hostSystem protection
• Programmable UVLO, OCP, OTP, OVP
• Dedicated temperature monitoring

Typical applications

• Telecom switches, routers, and telecom equipment
• High-current, high-performance POLs

More information

• Datasheet
• IC product information