DC-DC芯片/APW7080KAI-TRG
General Description
The APW7080 is a 4A, a synchronous, step-down converter with integrated 80mW P-channel MOSFET . The device, with current-mode control scheme, can convert 4.5~26V input voltage to the output voltage adjustable from 0.8 to 90% VIN to provide excellent output voltage regulation.
Features
• Wide Input V oltage from 4.5V to 26V
• Output Current up to 4A
• Adjustable Output V oltage from 0.8V to 90%VIN
- 0.8V Reference V oltage
- –2.5% System Accuracy
• 80mW Integrated P-Channel Power MOSFET
• High Efficiency up to 91%
- Pul se-Ski ppi ng Mode PSM / PWM Mode Operat i on
• 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% Undervoltage Protection
• Over-T emperature Protection
• <5mA Quiescent Current during Shutdown
• Thermal-Enhanced SOP-8P Package
• Lead Free and Green Devices Available RoHS Compliant
Applications
• LCD Monitor / TV
• Set-Top Box
• Portable DVD
• Wireless LAN
• ADSL, Switch HUB
• Notebook Computer
• Step-down Converters Requiring High Efficiency and 4A Output Current