AOZ1024DIL

AOZ1024DIL Datasheet

AOZ1024D

Part	Datasheet
AOZ1024DIL	AOZ1024DIL (pdf)

Related Parts	Information
AOZ1024DI_3	AOZ1024DI_3
AOZ1024DI-3	AOZ1024DI-3

PDF Datasheet Preview
AOZ1024D EZBuck 4A Synchronous Buck Regulator Not Recommended For New Designs The AOZ1024D is a synchronous high efficiency, simple ● 4.5V to 16V operating input voltage range to use, 4A buck regulator. The AOZ1024D works from a 4.5V to 16V input voltage range, and provides up to 4A of continuous output current with an output voltage adjustable down to 0.8V. The AOZ1024D comes in a DFN 5 x 4 package and is rated over a -40°C to +85°C ambient temperature range. Replacement Part AOZ1034DI ● Synchronous rectification internal high-side switch and internal low-side switch s ● High efficiency up to 95% n ● Internal soft start ig ● initial output accuracy ● Output voltage adjustable to 0.8V es ● 4A continuous output current D ● Fixed 500kHz PWM operation ommended For New Typical Application ec VIN RC1 22µF Not Ceramic ● Cycle-by-cycle current limit ● Pre-bias start-up ● Short-circuit protection ● Thermal shutdown ● Small size DFN 5 x 4 packages ● Point of load DC/DC conversion ● PCIe graphics cards ● Set top boxes ● DVD drives and HDD ● LCD panels ● Cable modems ● Telecom/networking/datacom equipment AOZ1024D LX L1 4.7µH VOUT COMP R1 C2, C3 22µF Ceramic AGND PGND Figure 3.3V/4A Synchronous Buck Regulator Page 1 of 16 AOZ1024D Ordering Information Ambient Temperature Range AOZ1024DI -40°C to +85°C Package DFN-8 Environmental Green All AOS products are offered in packages with Pb-free plating and compliant to RoHS standards. Please visit for additional information. Pin Configuration PGND 1 VIN 2 AGND 3 FB 4 LX GND 8 LX 7 LX 6 EN 5 COMP 5 x 4 DFN Designs Top Thru View or New Pin Description F Pin Number d 1 e 2 d 3 en 4 m 5 m 6 Not Reco 7, 8 Pin Name PGND VIN AGND COMP EN LX Pin Function Power ground. Electrically needs to be connected to AGND. Supply voltage input. When VIN rises above the UVLO threshold the device starts up. Reference connection for controller section. Also used as thermal connection for controller section. Electrically needs to be connected to PGND. The FB pin is used to determine the output voltage via a resistor divider between the output and GND. External loop compensation pin. The enable pin is active high. Connect in to VIN if not used and do not leave it open. PWM output connection to inductor. Page 2 of 16 Block Diagram AOZ1024D UVLO 5V LDO Internal & POR Regulator ISen Reference & Bias Softstart 0.8V EAmp PWM Comp ILimit PWM Control Logic Level Shifter + FET Driver signsLX DeQ2 or New COMP

PDF Datasheet Preview

AOZ1024D

EZBuck 4A Synchronous Buck Regulator

Not Recommended For New Designs

The AOZ1024D is a synchronous high efficiency, simple ● 4.5V to 16V operating input voltage range
to use, 4A buck regulator. The AOZ1024D works from a 4.5V to 16V input voltage range, and provides up to 4A of continuous output current with an output voltage adjustable down to 0.8V.

The AOZ1024D comes in a DFN 5 x 4 package and is rated over a -40°C to +85°C ambient temperature range.

Replacement Part AOZ1034DI
● Synchronous rectification internal high-side switch and internal low-side switch
s ● High efficiency up to 95% n ● Internal soft start ig ● initial output accuracy
● Output voltage adjustable to 0.8V
es ● 4A continuous output current D ● Fixed 500kHz PWM operation
ommended For New Typical Application ec VIN RC1
22µF

Not Ceramic
● Cycle-by-cycle current limit ● Pre-bias start-up ● Short-circuit protection ● Thermal shutdown ● Small size DFN 5 x 4 packages
● Point of load DC/DC conversion ● PCIe graphics cards ● Set top boxes ● DVD drives and HDD ● LCD panels ● Cable modems ● Telecom/networking/datacom equipment

AOZ1024D LX

L1 4.7µH

VOUT

COMP

R1 C2, C3 22µF Ceramic

AGND PGND

Figure 3.3V/4A Synchronous Buck Regulator

Page 1 of 16

AOZ1024D
Ordering Information

Ambient Temperature Range

AOZ1024DI
-40°C to +85°C

Package DFN-8

Environmental Green

All AOS products are offered in packages with Pb-free plating and compliant to RoHS standards. Please visit for additional information.

Pin Configuration

PGND 1 VIN 2

AGND 3 FB 4

LX GND
8 LX 7 LX 6 EN 5 COMP
5 x 4 DFN

Designs

Top Thru View
or New Pin Description

F Pin Number d 1 e 2 d 3 en 4 m 5 m 6 Not Reco 7, 8

Pin Name PGND VIN AGND

COMP EN LX

Pin Function

Power ground. Electrically needs to be connected to AGND. Supply voltage input. When VIN rises above the UVLO threshold the device starts up. Reference connection for controller section. Also used as thermal connection for controller section. Electrically needs to be connected to PGND. The FB pin is used to determine the output voltage via a resistor divider between the output and GND. External loop compensation pin. The enable pin is active high. Connect in to VIN if not used and do not leave it open. PWM output connection to inductor.

Page 2 of 16

Block Diagram

AOZ1024D

UVLO
5V LDO

Internal
& POR

Regulator

ISen

Reference & Bias

Softstart
0.8V

EAmp

PWM Comp

ILimit

PWM Control Logic

Level Shifter
+ FET Driver
signsLX DeQ2
or New COMP

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived AOZ1024DIL Datasheet file may be downloaded here without warranties.

Datasheet ID: AOZ1024DIL 516301