Power Module. AOZ5038QI Datasheet

AOZ5038QI Module. Datasheet pdf. Equivalent

AOZ5038QI Datasheet
Recommendation AOZ5038QI Datasheet
Part AOZ5038QI
Description DrMOS Power Module
Feature AOZ5038QI; AOZ5038QI 50A Continuous Current DrMOS Power Module General Description The AOZ5038QI is a high eff.
Manufacture Alpha & Omega Semiconductors
Datasheet
Download AOZ5038QI Datasheet




Alpha & Omega Semiconductors AOZ5038QI
AOZ5038QI
50A Continuous Current
DrMOS Power Module
General Description
The AOZ5038QI is a high efficiency synchronous buck
power stage module consisting of two asymmetrical
MOSFETs and an integrated driver. The MOSFETs are
individually optimized for operation in the synchronous
buck configuration. The high side MOSFET is optimized
to achieve low capacitance and gate charge for fast
switching with low duty cycle operation. The low side
MOSFET has ultra low ON resistance to minimize
conduction loss. The compact 5mm x 5mm QFN
package is optimally chosen and designed to minimize
parasitic inductance for minimal EMI signature.
The AOZ5038QI is intended for use with TTL and Tri-
state compatibility by using both the PWM and/or FCCM
inputs for accurate control of the power MOSFETs.
A number of features are provided making the
AOZ5038QI a highly versatile power module: The
bootstrap diode is integrated in the driver. The low side
MOSFET can be driven into diode emulation mode to
provide asynchronous operation when required. The pin-
out is optimized for low inductance routing of the
converter, keeping the parasitics and their effects to a
minimum.
NOT RECOMMENDED FOR NEW DESIGNS
Features
4.5V to 25V power supply range
4.5V to 5.5V driver supply range
50A continuous output current
Up to 60A peak output current
Integrated booststrap schottky diode
Up to 2MHz switching operation
Tri-state PWM input compatible
Under-Voltage LockOut protection
Single FCCM pin control for Shutdown / Diode
Emulation / CCM operation
Standard 5mm x 5mm QFN-31L package
Applications
Servers
Notebook computers
VRMs for motherboards
Point of load DC/DC converters
Memory and graphic cards
Video gaming console
Typical Application Circuit
VIN
BOOT
4.5V 25V
FCCM
PWM
PGND
Drive
Logic
and
Delay
CBOOT
CVIN
VSWH
GL
L VOUT
COUT
PGND
+5V
VCC
CVCC
PVCC
CPVCC
PGND
PGND
Rev. 3.1 October 2019
www.aosmd.com
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Alpha & Omega Semiconductors AOZ5038QI
Ordering Information
Part Number
AOZ5038QI
Ambient Temperature Range
-40°C to +85°C
Package
QFN5X5_31L
AOS Green Products use reduced levels of Halogens, and are also RoHS compliant.
Please visit www.aosmd.com/media/AOSGreenPolicy.pdf for additional information.
Pin Configuration
AOZ5038QI
Environmental
RoHS
31 30 29 28 27 26 25 24
PWM 1
FCCM 2
VCC 3
NC 4
BOOT 5
NC 6
VSWH 7
VIN 8
AGND
VIN
GL
PGND
23 VSWH
22 VSWH
21 VSWH
20 VSWH
19 VSWH
18 VSWH
17 VSWH
16 VSWH
9 10 11
12 13 14 15
QFN5x5_31L
(Top View)
Rev. 3.1 October 2019
www.aosmd.com
Page 2 of 14



Alpha & Omega Semiconductors AOZ5038QI
AOZ5038QI
Pin Description
Pin Number Pin Name
1 PWM
2
3
4, 6, 30, 31
5
7
8, 9, 10, 11
12, 13, 14, 15
16, 17, 18, 19,
20, 21, 22, 23,
24, 25, 26
27
28
29
FCCM
VCC
NC
BOOT
VSWH
VIN
PGND
VSWH
GL
PGND
PVCC
Pin Function
PWM input signal from the controller IC. This input is compatible with 5V and Tri-State logic
level Low Side.
Continuous conduction mode of operation is allowed when FCCM = High.
Discontinuous mode is allowed and diode emulation mode is active when FCCM = Low.
High impedance on the input of FCCM will shutdown both high side and low side MOSFETs.
Driver low voltage input pin.
No connect.
High side MOSFET gate driver supply rail. Connect a 100nF ceramic capacitor between
BOOT and VSWH (Pin 7).
Switching node connected to the source of high side MOSFET and the drain of low side
MOSFET. This pin is dedicated for bootstrap capacitor connection to BOOT pin.
Power stage high voltage input pin.
Power ground pin for power stage.
Switching node connected to the source of high side MOSFET and the drain of low side
MOSFET. These pins are being used for zero cross detect, bootstrap UVLO and Anti-overlap
control.
Low side MOSFET gate connection. This is for test use only.
Power ground pin for low side MOSFET gate driver.
Low side MOSFET gate driver supply rail.
Functional Block Diagram
VCC
PVCC
BOOT
FCCM
PWM
VCC DCM/CCM
Enable
Tri-State
SD
Logic
Tri-State
Clamps
VCC
PWM
Tri-State
Logic
REF/BIAS/
UVLO
Control
Logic
HS
Sequencing
and
Propagation
Delay Bank
LS
Control
Logic HS
Output
Check
Driver
Logic
LS
MIN
ON
PWM
Tri-
State
Irev
LS
Check
Level
Translator
HS
Gate
Driver
BST +
UVLO -
ZCD
Voff
PVCC
LS
Gate
Driver
PGND
VIN
VSWH
GL
PGND
Rev. 3.1 October 2019
www.aosmd.com
Page 3 of 14







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