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Monolithic Power Systems MP28258
High Efficiency, Fast Transient, 3A, 4.2V-20V Input Synchronous Step-down Converter in QFN12 (2x3mm)
Overview
| Topology | Buck Converter |
| Input voltage | 4.2-20 V |
| Output 1 | 1.2 V / 3 A |
| IC revision | 1.14 |
Description
The MP28258 is a fully-integrated, highefficiency,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 outputcurrent 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.
Features
- Wide 4.2V to 20V Operating Input Range
- 3A Output Current
- Low RDS(ON) Internal Power Mosfets
- Proprietary Switching Loss Reduction Technique
- Power-Good Indicator in QFN Package
- Soft Startup/Shutdown
- Programmable Switching Frequency
- SCP, OCP, UVP Protection and Thermal Shutdown
- Optional OCP Protection: Latch-Off Mode and Hiccup Mode.
- Output Adjustable From 0.815V To 13V
- Available in a QFN12 (2x3mm) Package
Typical applications
- Networking Systems
- Distributed Power Systems