MP28115

MP28115

NOT RECOMMENDED FOR NEW DESIGNS

4A, 1.5MHz Synchronous Step-Down Converter

代替品

データシート

MP28115 continues to be in production for existing customers. Please consider this alternative for new designs:

MP2131GG-Z

4A、5.5V、1.2MHz、高効率、COT、同期整流ステップダウンコンバータ、パワーグッドおよび自動放電付き

Features & Benefits

2.7V〜5.5Vの広い動作入力範囲
0.6Vの低出力電圧
4Aの出力電流
35mΩ および18mΩのパワーMOSFET内蔵
96%を超えるピーク効率
80%を超える軽負荷効率
低自己消費電流: 19μA
1.2MHz周波数
ドロップアウト時に100％のデューティサイクル
0.5msの内部ソフトスタート時間
電源シーケンス用のENとパワーグッド
ENオフ時の自動放電
ヒカップモードによる短絡保護
QFN-12 (2mm x 7mm) パッケージで提供

… and many more!

概要

The MP28115 is an internally compensated 1.5MHz fixed frequency PWM synchronous step-down regulator. MP28115 operates from a 2.7V to 6V input and generates an adjustable output voltage from 0.8V to 0.9xVIN at up to 4A load current. The MP28115 integrates a 60mO high side switch and a 60mO synchronous rectifier for high efficiency without an external Schottky diode. With peak current mode control and internal compensation, the MP28115 based solution achieves minimum footprint and component count. Fault condition protection includes Hiccup short-circuit protection, cycle-by-cycle current limiting and thermal shutdown. Other features include frequency synchronization input, internal soft-start and power good output. The MP28115 is available in a small 3x3mm 10-lead QFN package.