MP28257 Datasheet | Monolithic Power Systems

DESCRIPTION The MP28257 is a fully-integrated, synchronous, O step-down, switch-mode converter with a programmable frequency. It offers a very F pact solution that can provide up to 4A of continuous output current over a wide input supply range with excellent load and line D regulation, and can operate at high efficiency over a wide output current load range. E Constant-on-time control mode provides fast transient response and eases loop stabilization. D Protections include short-circuit protection, N S 4 over-current protection, over-voltage protection, under-voltage protection, and thermal shut E N 8 down. M IG 3 The MP28257 requires a minimal number of readily-available standard external ponents. 2 The device is available in a space saving M S P 2mmx3mm QFN12 package that plies with O E M ROHS. 2mmx3mm QFN12 FEATURES - Wide 4.2V-to-20V Operating Input Range - 4A Continuous Output Current - Internal 120mΩ High-Side, 50mΩ Low- Side Power MOSFETs - Stable with Ceramic Output Capacitors - Proprietary Switching Loss-Reduction Technology - Power-Good Indicator - Soft Startup/Shutdown - Programmable Switching Frequency - SCP, OCP, OVP, UVP Protection and Thermal Shutdown - Output Adjustable from 0.815V to 13V - Available in a 2mmx3mm QFN12 Package APPLICATIONS - Networking Systems - Distributed Power Systems All MPS parts are lead-free and adhere to the Ro HS directive. For MPS green status, please visit MPS website under Quality Assurance. “MPS” and “The Future of Analog IC Technology” are Registered Trademarks of Monolithic Power Systems, Inc. NOT RECNREEWFEDR TO TYPICAL APPLICATION MP28257 Rev 1.01 .Monolithic Power. 4/13/2020 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2020 MPS. All Rights Reserved. - 4A, 4.2V-TO-20V, FAST TRANSIENT, SYNCHRONOUS STEP-DOWN CONVERTER ORDERING INFORMATION Part Number MP28257DD-...