MP44019

CrM/DCM Multi-Mode PFC Controller with

Second OVP

MP44019 Rev. 1.0

MonolithicPower.com

1

4/30/2021

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© 2021 MPS. All Rights Reserved.

DESCRIPTION

The MP44019 is a CrM/DCM multi-mode PFC

controller

that

provides

simple

and

high-

performance active power factor correction

using minimal external components.

The device features a very low supply current.

This allows the device to achieve low standby

power loss. The typical no load power loss is

below 50mW.

The MP44019 reduces the switching frequency

using dead time extension technology under light

loads. This improves light-load efficiency.

The device achieves lower total harmonic

distortion (THD) due to variable on time control

in discontinuous conduction mode (DCM), when

compared to conventional constant on time

(COT) control.

Multi-protection functionality largely enhances

the safety and reliability of the system. The

MP44019 feature over-voltage protection (OVP),

second OVP (OVP2), an over-current limit (OCL),

over-current protection (OCP), under-voltage

protection (UVP), brown-in (BI) and brownout

(BO), VCC under-voltage lockout (UVLO), and

over-temperature protection (OTP).

The MP44019 is available in an SOIC-8 package.

FEATURES

 Valley Turn On for Minimum Switching Loss

 Frequency Reduction to Reduce Switching

Loss Under Light-Load Conditions

 Low Supply Current in Burst Mode

 Soft-On/Off Burst for Low Audible Noise

 Mains Compensation

 Improved THD

 Under-Voltage Protection (UVP)

 Over-Current Limit (OCL)

 Over-Current Protection (OCP)

 Over-Voltage Protection (OVP)

 Second Over-Voltage Protection (OVP2)

 Brown-In (BI) and Brownout (BO)

 Over-Temperature Protection (OTP)

 Open/Short Pin Protection

 Soft Start-Up

 Enhanced Dynamic Response

 Available in an SOIC-8 Package

APPLICATIONS



LCD and OLED TVs



Desktop PCs and Servers



High-Power Supplies for Lighting



AC/DC Adapters, Open-Frame SMPSs



Video Game Consoles

All MPS parts are lead-free, halogen-free, and adhere to the RoHS

directive. For MPS green status, please visit the MPS website under

Quality Assurance. “MPS”, the MPS logo, and “Simple, Easy Solutions”

are trademarks of Monolithic Power Systems, Inc. or its subsidiaries.