MP28258-A

MP28258-A

NOT RECOMMENDED FOR NEW DESIGNS

3A, 4.2V to 20V, COT, Sync Step-Down Converter with Hiccup OCP and Programmable Frequency in 2x3mm QFN

ALTERNATIVE PART

NRFND Datasheet

MP28258-A 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 MP28258 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, and can operate at high efficiency over a wide output-current load range. Constant-On-Time (COT) control mode provides fast transient response and eases loop stabilization. Full protection features include SCP, OCP, OVP, UVP and, thermal shut down. The MP28258 requires a minimal number of readily-available standard external components. This device is available in a space saving 2mmx3mm 12-pin QFN package.