AOZ5312UQI Module Datasheet

AOZ5312UQI Datasheet, PDF, Equivalent


Part Number

AOZ5312UQI

Description

High-Performance DrMOS Power Module

Manufacture

Alpha & Omega Semiconductors

Total Page 18 Pages
Datasheet
Download AOZ5312UQI Datasheet


AOZ5312UQI
AOZ5312UQI
High-Current, High-Performance
DrMOS Power Module
General Description
The AOZ5312UQI 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 AOZ5312UQI uses a PWM input for accurate control
of the power MOSFETs switching activities, is compatible
with 3V and 5V (CMOS) logic and supports Tri-State
PWM.
A number of features are provided making the
AOZ5312UQI a highly versatile power module. The boot-
strap switch is integrated in the driver. The Low-Side
MOSFET can be driven into diode emulation mode to
provide asynchronous operation and improve light-load
performance. The pin-out is also optimized for low
parasitics, keeping their effects to a minimum.
Features
2.5V to 20V power supply range
4.5V to 5.5V driver supply range
60A continuous output current
- Up to 80A with 10ms on pulse
- Up to 120A with 10us on pulse
Up to 2MHz switching operation
3V/5V PWM and Tri-State input compatible
Under-Voltage LockOut protection
SMOD# control for Diode Emulation / CCM operation
Low Profile 5x5 QFN-31L package
Applications
Memory and graphics cards
VRMs for motherboards
Point of load DC/DC converters
Video gaming consoles
Typical Application Circuit
VCC
PW M
C o n tro lle r
THW N
D IS B #
SM O D#
D riv e r
L o g ic
and
D e la y
PW M
AGND
CVCC
5V
VCC
V IN
BOOT
HS
D riv e r
LS
D riv e r
PVCC
PGND
CPVC C
CBOOT
PHASE
VSW H
GL
2 .5 V ~ 2 0 V
C IN
L1
VOUT
COU T
PGND
Rev. 1.0 July 2019
www.aosmd.com
Page 1 of 18

AOZ5312UQI
AOZ5312UQI
Ordering Information
Part Number
AOZ5312UQI
Junction Temperature Range
-40°C to +150°C
Package
QFN5x5-31L
Environmental
RoHS
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
31 30 29 28 27 26 25 24
PWM 1
SMOD# 2
VCC 3
AGND 4
BOOT 5
NC 6
PHASE 7
VIN 8
PGND
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. 1.0 July 2019
www.aosmd.com
Page 2 of 18


Features AOZ5312UQI High-Current, High-Performanc e DrMOS Power Module General Descripti on The AOZ5312UQI is a high efficiency synchronous buck power stage module con sisting of two asymmetrical MOSFETs and an integrated driver. The MOSFETs are individually optimized for operation in the synchronous buck configuration. Th e High-Side MOSFET is optimized to achi eve low capacitance and gate charge for fast switching with low duty cycle ope ration. The Low-Side MOSFET has ultra-l ow ON resistance to minimize conduction loss. The AOZ5312UQI uses a PWM input for accurate control of the power MOSFE Ts switching activities, is compatible with 3V and 5V (CMOS) logic and support s Tri-State PWM. A number of features a re provided making the AOZ5312UQI a hig hly versatile power module. The bootstr ap switch is integrated in the driver. The Low-Side MOSFET can be driven into diode emulation mode to provide asynchr onous operation and improve light-load performance. The pin-out is also optimized for low parasitics, .
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