Product Overview

The AOZ5636QI is a high-efficiency, high-performance DrMOS power module designed for synchronous buck converter applications. It integrates two asymmetrical MOSFETs and a driver for optimized performance. The module features a high-side MOSFET optimized for fast switching at low duty cycles and a low-side MOSFET with ultra-low ON resistance for minimal conduction loss. It supports 3V and 5V PWM/Tri-State logic inputs and includes features like Under-Voltage Lockout (UVLO) protection and a SMOD# control for Diode Emulation/CCM operation. The optimized pin-out minimizes parasitic effects. Applications include memory and graphic cards, VRMs for motherboards, and point-of-load DC/DC converters.

Product Attributes

• Brand: AOS (Alpha and Omega Semiconductor)
• Package: QFN5x5-31L
• Environmental Compliance: RoHS
• Plating: Pb-free

Technical Specifications

Parameter	Rating	Conditions	Min.	Typ.	Max.	Units
General
Power Supply Range (VIN)			4.5		20	V
Driver Supply Range (VCC, PVCC)			4.5		5.5	V
Continuous Output Current	50					A
Output Current (10ms ON pulse)	Up to 70					A
Output Current (10us ON pulse)	Up to 110					A
Switching Frequency	Up to 2					MHz
PWM Input Compatibility	3V / 5V / Tri-State
Ambient Temperature Range			-40		125	C
Package Dimensions	5x5 QFN-31L
Electrical Characteristics
VCC UVLO Rising			3.5	3.9		V
VCC Hysteresis				400		mV
PWM Logic High Input Voltage (VPWMH)			2.7			V
PWM Logic Low Input Voltage (VPWML)				0.72		V
PWM Tri-State Window (VTRI)			1.35		1.95	V
DISB# Enable Input Voltage (VDISB#_ON)			2.0			V
DISB# Disable Input Voltage (VDISB#_OFF)				0.8		V
SMOD# Logic High Input Voltage (VSMOD#_H)			2.0			V
SMOD# Logic Low Input Voltage (VSMOD#_L)				0.8		V
Gate Driver Deadtime (Low-Side to High-Side)				15		ns
Gate Driver Deadtime (High-Side to Low-Side)				13		ns
Tri-State Shutdown Delay (tTSSHD)				25		ns
Tri-State Propagation Delay (tTSEXIT)				35		ns
LS Minimum On Time (LS Min On)		SMOD# = L		350		ns
Junction Thermal Threshold Rising (TJTHWN)				150		C
Junction Thermal Hysteresis (TJHYST)				30		C