MP44018A CrM/DCM Multi-Mode PFC Controller with Enhanced Light-Load Efficiency DESCRIPTION FEATURES The MP44018A is a CrM/DCM multi-mode PFC Valley Turn-On for Minimum Switching Loss controller that provides simple and high- Frequency Reduction to Reduce Switching performance active power factor correction Loss Under Light-Load Conditions using minimal external components. Low Supply Current in Burst Mode Soft-On/Off Burst for Low Audible Noise The MP44018A features a very low supply Mains Compensation current. This allows the device to achieve low Improved THD standby power loss, and the typical no load Under-Voltage Protection (UVP) power is below 30mW. Over-Current Limit (OCL) The switching frequency is reduced by dead time Over-Current Protection (OCP) extension technology under light-load conditions, Over-Voltage Protection (OVP) which improves light-load efficiency. The Brown-In (BI) and Brownout (BO) MP44018A also achieves lower THD due to Over-Temperature Protection (OTP) variable-on-time control in discontinuous Open/Short Pin Protection conduction mode (DCM) when compared to Soft Start-Up conventional constant-on-time (COT) control. Enhanced Dynamic Response Multi-protection functionality largely enhances Available in an SOIC-8 Package the safety and reliability of the system. The MP44018A feature over-voltage protection APPLICATIONS (OVP), over-current limit (OCL), over-current LCD and OLED TVs protection (OCP), under-voltage protection Desktop PCs and Servers (UVP), brown-in (BI) and brownout (BO), static High-Power Supply for Lighting OVP, VCC under-voltage lockout (UVLO), and AC/DC Adapters, Open-Frame SMPS over-temperature protection (OTP). Video Game Consoles MP44018A is available in SOIC-8 package. 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. MP44018A Rev. 1.01 MonolithicPower.com 1 11/16/2020 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2020 MPS. All Rights Reserved. MP44018A CRM/DCM MULTI-MODE PFC CONTROLLER TYPICAL APPLICATION L1 D1 V O RO1 BD1 VCC R ZCD U1 F1 ZCD FB R G C1 C Q1 O GATE VCC M44018A VAC C x 1 CS MAINSIN R O2 COMP GND C VCC R4 R Z C2 R IN2 R C CS P C Z RIN1 MP44018A Rev. 1.01 MonolithicPower.com 2 11/16/2020 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2020 MPS. All Rights Reserved.