MP28248

NOT RECOMMENDED FOR NEW DESIGNS

High Efficiency, Fast-Transient, 3A, 4.2V-20V Input Synchronous Step-down Converter with SS and Programmable Frequency in a QFN12 (2x3mm) Package

ALTERNATIVE PART

NRFND Datasheet

MP28248 continues to be in production for existing customers. Please consider this alternative for new designs:

MP2330HGTL-Z

24V, 3A, 1.2MHz, Synchronous Buck Converter

Features & Benefits

Wide 4.2V to 24V Operating Input Range
75mΩ/40mΩ Low R_DS(ON)Internal Power MOSFETs
200µA Low I_Q
High-Efficiency Synchronous Mode Operation
Fast Load Transient Response
1.2MHz Switching Frequency
T_ON Extension
Forced PWM Operation
Programmable Soft-Start Time
Power Good (PG) Indication
Over-Current Protection (OCP) and Hiccup
Pre-Bias Start-Up
Thermal Shutdown
Available in a SOT583 (1.6mmx2.1mm) Package

… and many more!

Description

The MP28248 is a fully-integrated, high-efficiency, synchronous, step-down, switch mode converter. It offers a very compact solution that can achieve a 3A continuous output current over a wide input supply range with excellent load and line regulation. The MP28248 operates at high efficiency over a wide output-current load range. Constant-On-Time control mode provides fast transient response and eases loop stabilization. Full protective features include short-circuit protection, over-current protection, over-voltage protection, under-voltage protection, and thermal shutdown. The MP28248 requires a minimal number of readily-available standard external components. This device is available in a space-saving 2mmx3mm 12-pin QFN package.