SQ28004 Overview
The SQ28004 is a high efficiency 2.2MHz synchronous step down DC/DC regulator capable of delivering up to 4A output current. It can operate over a wide input voltage range from 2.5V to 5.5V and integrates main switch and synchronous switch with very low RDS (ON) to minimize the conduction loss. The SQ28004 is in a space saving, low profile DFN1.5×1.5-6 package.
SQ28004 Key Features
- 2.5V to 5.5V Input Voltage Range
- Ultra-Fast Load Transient Speed
- Low RDS(ON) for Internal Switches (Top/Bottom)
- High Switching Frequency 2.2MHz Minimizes
- ±1% Feedback or Output Voltage Accuracy (Full
- PFM Mode for Light Load Efficiency
- 21μA Operating Quiescent Current
- Internal Soft-start Limits the Inrush Current
- 100% Dropout Operation
- Output Auto Discharge Function