APW7080KAIFeatures
· Wide Input Voltage from 4.5V to 26V
· Output Current up to 4A
· Adjustable Output Voltage from 0.8V to 90%VIN
- 0.8V Reference Voltage
- ±2.5% System Accuracy
· 80mW Integrated P-Channel Power MOSFET
· High Efficiency up to 91%
-Pulse-SkippingMode (PSM) /PWMModeOperation
· Current-Mode Operation
- Stable with Ceramic Output Capacitors
- Fast Transient Response
· Power-On-Reset Monitoring
· Fixed 380kHz Switching Frequency in PWMMode
· Built-in Digital Soft-Start
· Output Current-Limit Protection with Frequency
Foldback
· 70%Undervoltage Protection
· Over-Temperature Protection
· <5mA Quiescent Current during Shutdown
· Thermal-Enhanced SOP-8P Package
· Lead Free and Green Devices Available
(RoHS Compliant)
General Description
The APW7080 is a 4A, asynchronous, 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.
The APW7080 regulates the output voltage in automatic
PSM/PWM mode operation, depending on the output
current, for high efficiency operation over light to full load
current.The APW7080 is also equipped with power-onreset,
soft-start, and whole protections (undervoltage, over
temperature, and current-limit) into a single package. In
shutdown mode, the supply current drops below 5mA.
This device, available in an 8-pin SOP-8P package,
provides a very compact system solution with minimal
external components and good thermal conductance.
