APW7089
4A, 26V, 380kHz, Asynchronous Step-Down Converter
Features
General Description
• Wide Input
Voltage from 4.
5V to 26V
• Output Current up to 4A
•
Adjustable Output
Voltage from 0.
8V to 90% V IN
- 0.
8V Reference
Voltage
- ±2.
5% System Accuracy
• 80mΩ Integrated P-Channel Power
MOSFET • High Efficiency up to 91%
- Pulse-Skipping Mode (PSM) / PWM Mode Op-
eration
• Current-Mode Operation
- Stable with Ceramic Output
Capacitors
- Fast Transient Response
• Power-On-Reset Monitoring • Fixed 380kHz Switching Frequency in PWM Mode • Built-in Digital Soft-Start • Output Current-Limit Protection with Frequency
Foldback
• 70% Under-
Voltage Protection • Over-Temperature Protection •...