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quality AOS AOZ5508QI 2 Synchronous Buck Power Stage Module with Asymmetrical MOSFETs and Driver Integration factory
quality AOS AOZ5508QI 2 Synchronous Buck Power Stage Module with Asymmetrical MOSFETs and Driver Integration factory

AOS AOZ5508QI 2 Synchronous Buck Power Stage Module with Asymmetrical MOSFETs and Driver Integration

Key Attributes
Model Number: AOZ5508QI_2
Product Custom Attributes
Mfr. Part #:
AOZ5508QI_2
Package:
PowerVFQFN-22
Product Description

Product Overview

The AOZ5508QI is a high-efficiency synchronous buck power stage module designed for high-current applications. It integrates two asymmetrical MOSFETs and a driver, optimized for synchronous buck configurations. The module features a low-profile QFN-22L package and supports 5V PWM/Tri-State input, offering features like under-voltage lockout, FCCM control for diode emulation or CCM operation, and optimized pin-out for low parasitics. Its versatility makes it suitable for memory and graphics cards, VRMs for motherboards, point-of-load DC/DC converters, and video gaming consoles.

Product Attributes

  • Brand: AOS (Alpha and Omega Semiconductor)
  • Package: QFN3.5x4.5-22L
  • Environmental: RoHS
  • Product Line: AOS Green Products (reduced levels of Halogens)

Technical Specifications

Parameter Rating Unit
Power Supply Range (VIN) 4.5 to 25 V
Driver Supply Range (VCC, PVCC) 4.5 to 5.5 V
Continuous Output Current 35 A
Instantaneous Current (20ms @ 14V VIN) Up to 65 A
Instantaneous Current (20ms @ 22V VIN) Up to 60 A
Instantaneous Current (10s pulse) Up to 80 A
Switching Frequency Up to 2 MHz
PWM Input Compatibility 5V / Tri-State Logic
Junction Temperature Range -40 to +150 C
Package Dimensions 3.5 x 4.5 mm
VCC UVLO Threshold (Rising) 3.5 (Typ.) V
VCC UVLO Hysteresis 400 (Typ.) mV
PWM Logic High Input Voltage (VPWMH) 4.20 V
PWM Logic Low Input Voltage (VPWML) 0.72 V
PWM Tri-State Window (VTRIH/VTRIL) 1.60 / 3.40 V
FCCM Logic High Input Voltage (VFCCM_H) 3.90 V
FCCM Logic Low Input Voltage (VFCCM_L) 1.10 V
FCCM Tri-State Window 2.0 to 3.0 V
LS Minimum On Time (DCM Mode) 350 ns
PWM to HS Gate Delay (tPDLU) 24 ns
PWM to LS Gate Delay (tPDLL) 25 ns
LS to HS Gate Deadtime (tPDHU) 15 ns
HS to LS Gate Deadtime (tPDHL) 13 ns
Tri-State Shutdown Delay (tTSSHD) 150 ns
Tri-State Propagation Delay (tTSEXIT) 45 ns

2411041558_AOS-AOZ5508QI-2_C5587862.pdf

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