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MCP19122

Digitally Enhanced Power Analog Buck Controller

Status: In Production

Features:

  • Wide Operating Voltage Range: 4.5-40V
  • Wide Output Voltage Range: 0.3-16V
  • Supports synchronous buck, or similar high/low side switch topologies
  • Operates from 100kHz to 1.6MHz, adjustable during operation
  • 4kw flash memory
  • 256B RAM
  • Significant Configurability: Adjustable Analog Compensation, Switching Frequency, UVLO, OVLO, Start-up Behavior, MOSFET Deadtime, Configurable GPIO Pins, Internal Compensation Network, I2C Communication Interface, and fault behavior
  • Integrated Synchronous High- and Low-Side MOSFET Drivers
  • Integrated High-side Current Sense
  • Integrated 10 bit A/D Converter
  • Can provide or synchronize to an external clock
  • Can provide or synchronize to an external reference
  • 50uA quiescent current draw in sleep mode
  • Integrated POR and BOR functions
  • Three internal timers and a capture compare module
  • Integrated I2C interface, capable of PMBusTM support
  • Minimal External Components Needed
  • Custom Algorithm Support
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The MCP19122 offers excellent regulation accuracy, in a variable output analog PWM controller with an integrated microcontroller for supervisory and management functions.

It is a mid-voltage (4.5-40V) analog-based synchronous buck PWM controller with an integrated 8-bit PIC® Microcontroller. This unique product combines the performance of a high-speed analog solution, including high-efficiency and fast transient response, with the configurability and communication interface of a digital solution. Combining these solution types creates a new family of devices that maximizes the strengths of each technology to create a more cost-effective, configurable, high-performance power conversion solution. With integrated linear regulator, driver, timer, temperature sensor, and feedback network capabilities, this creates a very compact, versatile power conversion solution.

The output is adjustable on the fly, using the integrated programmable gain amplifier in the feedback path and the integrated adjustable reference voltage. In addition, the internal compensation network can also be adjusted, preserving phase margin and transient response over a wide (0.3V to 16V) output range (without external components, that range can be shifted with resistive dividers).

Additional Features
    • Wide Operating Voltage Range: 4.5-40V
    • Wide Output Voltage Range: 0.3-16V
    • Analog Emulated Average-Current Mode Pulse-Width Modulation (PWM) Control
      • Supports synchronous buck, or similar high/low side switch topologies
      • Operates from 100kHz to 1.6MHz, adjustable during operation
    • Integrated 8-Bit PIC® Microcontroller
      • 4kw flash memory
      • 256B RAM
    • Significant Configurability: Adjustable Analog Compensation, Switching Frequency, UVLO, OVLO, Start-up Behavior, MOSFET Deadtime, Configurable GPIO Pins, Internal Compensation Network, I2C Communication Interface, and fault behavior
    • Integrated Synchronous High- and Low-Side MOSFET Drivers
    • Integrated High-side Current Sense
    • Integrated 10 bit A/D Converter
    • Multi-phase and multi-rail support as a master or slave device
      • Can provide or synchronize to an external clock
      • Can provide or synchronize to an external reference
    • Shutdown and brown-out support
      • 50uA quiescent current draw in sleep mode
      • Integrated POR and BOR functions
    • Three internal timers and a capture compare module
    • Integrated I2C interface, capable of PMBusTM support
    • Minimal External Components Needed
    • Custom Algorithm Support
Parametrics
Name
Value
Topologies Supported
Buck
Min. Operation Voltage (V)
4.5
Max. Operation Voltage (V)
40
Drive Strength (A)
2
Program Memory Type
Flash
Program Memory Size (KWords)
4.0
RAM (bytes)
256
Package Size (mm)
4x4

Documents

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Programming Specification

Software

11/05/2015
3860KB

Development Environment

  • Demo & Evaluation Boards
  • Programmers
  • Application Examples
Demo & Evaluation Boards
MCP19111 Evaluation Board
MCP19111 Evaluation Board ( ADM00397 )

The MCP19111 is a digitally-enhanced PWM controller. It combines a pure-analog PWM controller with a supervisory microcontroller making it a fast, cost-effective, and configurable power conversion solution. The MCP19111 is ideal for standard power conversion, LED drivers, and battery charging applications. The MCP19111 Evaluation Board demonstrates how the MCP19111 device operates in a...

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MCP19111 Battery Charger Eval Board
MCP19111 Battery Charger Eval Board ( ADM00513 )

The MCP19111 Battery Charger Eval Board demonstrates the features of a programmable and configurable multi-chemistry battery charger.The MCP19111 can be programmed to make a very flexible battery charger by controlling a high efficiency synchronous buck circuit. The controller dynamically moves from voltage to current controlled charging, following the charge characteristics of the target battery...

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MCP19111 PMBus-Enabled POL Board
MCP19111 PMBus-Enabled POL Board ( ARD00609 )

The MCP19111 is a digitally-enhanced PWM controller. It combines a pure-analog PWM controller with a supervisory microcontroller making it a fast, cost-effective, and configurable power conversion solution. The MCP19111 is ideal for standard DC-DC conversion, LED drivers, and battery charging applications. The ARD00609 Demo Board demonstrates how the MCP19111 device operates as a PMBus-enabled POL...

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Programmers
PICkit 3 In-Circuit Debugger
PICkit 3 In-Circuit Debugger ( PG164130 )
(Not Recommended for new design)

The PICkit 3 is not recommended for new designs. For new designs, please see the MPLAB PICKit 4.

Microchip’s PICkit™ 3 In-Circuit Debugger/Programmer uses in-circuit debugging logic incorporated into each chip with Flash memory to provide a low-cost hardware debugger and programmer. In-circuit

...

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MPLAB PM3 Universal Device Programmer
MPLAB PM3 Universal Device Programmer ( DV007004 )

The MPLAB® PM3 Universal Device Programmer is easy to use and operates with a PC or as a stand-alone unit, and programs Microchip's entire line of PIC® devices as well as the latest dsPIC® DSC devices. When used standalone, data can be loaded and saved with the SD/MMC card (not included).

  • Socket: AC164382   PartNo: MCP19122 (24MJ)
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MPLAB ICD 3 In-Circuit Debugger
MPLAB ICD 3 In-Circuit Debugger ( DV164035 )
(Not Recommended for new design)

 The MPLAB ICD 3 is a mature product. For new designs, consider using the MPLAB ICD 4 (DV164045)

MPLAB® ICD 3 In-Circuit Debugger System is Microchip's most cost effective high-speed hardware debugger/programmer for Microchip Flash Digital Signal Controller (DSC) and microcontroller

...

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MPLAB REAL ICE PROBE KIT
MPLAB REAL ICE PROBE KIT ( DV244005 )
(Not Recommended for new design)

MPLAB REAL ICE In-Circuit Emulator System is Microchip’s next generation high speed emulator for Microchip Flash DSC® and MCU devices. It debugs and programs PIC® and dsPIC® Flash microcontrollers with the easy-to-use but powerful graphical user interface of the MPLAB Integrated Development Environment (IDE), included with each kit.
The MPLAB REAL ICE probe is

...

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (Kg)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
MCP19122T-E/MJ
0.044100
0.212121
24
QFN
4x4x0.9mm
Matte Tin
e3
MCP19122-E/MJ
0.044100
0.109890
24
QFN
4x4x0.9mm
Matte Tin
e3
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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