AOZ1073AIL-4_2

AOZ1073AIL-4_2 Datasheet

AOZ1073

Part	Datasheet
AOZ1073AIL-4_2	AOZ1073AIL-4_2 (pdf)

Related Parts	Information
AOZ1073AIL_8	AOZ1073AIL_8
AOZ1073AIL_3	AOZ1073AIL_3
AOZ1073AIL_2	AOZ1073AIL_2
AOZ1073AIL	AOZ1073AIL
AOZ1073AIL-4	AOZ1073AIL-4
AOZ1073AIL_6	AOZ1073AIL_6

PDF Datasheet Preview
AOZ1073 EZBuck 3A Synchronous Buck Regulator The AOZ1073 is a synchronous high simple to use, 3A buck regulator. The AOZ1073 works from a 4.5V to 16V input voltage range, and provides up to 3A of continuous output current with an output voltage adjustable down to 0.8V. The AOZ1073 comes in an SO-8 packages and is rated over a -40°C to +85°C ambient temperature range. ● 4.5V to 16V operating input voltage range ● Synchronous internal high-side switch and Internal low-side switch ● High up to 95% ● Internal soft start ● Output voltage adjustable to 0.8V ● 3A continuous output current ● Fixed 500kHz PWM operation ● Cycle-by-cycle current limit ● Pre-bias start-up ● Short-circuit protection ● Thermal shutdown ● Output over voltage protection ● Small size SO-8 package ● Point of load DC/DC conversion ● PCIe graphics cards ● Set top boxes ● DVD drives and HDD ● LCD panels ● Cable modems ● Telecom/networking/datacom equipment C1 22µF Ceramic RC CC AOZ1073 LX COMP AGND PGND L1 4.7µH R1 R2 VOUT C2, C3 22µF Ceramic Figure 3.3V/3A Buck Regulator Page 1 of 15 AOZ1073 Ordering Information Ambient Temperature Range AOZ1073AIL -40°C to +85°C Package SO-8 Environmental Green Halogen Free • All AOS products are offered in packages with Pb-free plating and compliant to RoHS standards. • Parts marked as Green Products with “L” use reduced levels of Halogens, and are also RoHS compliant. Please visit for additional information. PGND 1 VIN 2 AGND 3 FB 4 SO-8 Top View 8 LX 7 LX 6 EN 5 COMP Pin Description Pin Number Pin Name Pin Function PGND Power ground. Electrically needs to be connected to AGND. Supply voltage input. When VIN rises above the UVLO threshold the device starts up. AGND 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. COMP External loop compensation pin. The enable pin is active HIGH. Connect it to VIN if not used and do not leave it open. PWM outputs connection to inductor. Page 2 of 15 Block Diagram AOZ1073 UVLO 5V LDO Internal & POR Regulator Reference & Bias Softstart ILimit ISen 0.8V COMP EAmp PWM Comp PWM Control Logic

PDF Datasheet Preview

AOZ1073

EZBuck 3A Synchronous Buck Regulator

The AOZ1073 is a synchronous high simple to use, 3A buck regulator. The AOZ1073 works from a 4.5V to 16V input voltage range, and provides up to 3A of continuous output current with an output voltage adjustable down to 0.8V.

The AOZ1073 comes in an SO-8 packages and is rated over a -40°C to +85°C ambient temperature range.
● 4.5V to 16V operating input voltage range ● Synchronous internal high-side
switch and Internal low-side switch ● High up to 95% ● Internal soft start ● Output voltage adjustable to 0.8V ● 3A continuous output current ● Fixed 500kHz PWM operation ● Cycle-by-cycle current limit ● Pre-bias start-up ● Short-circuit protection ● Thermal shutdown ● Output over voltage protection ● Small size SO-8 package
● Point of load DC/DC conversion ● PCIe graphics cards ● Set top boxes ● DVD drives and HDD ● LCD panels ● Cable modems ● Telecom/networking/datacom equipment

C1 22µF Ceramic

RC CC

AOZ1073 LX

COMP

AGND

PGND

L1 4.7µH R1 R2

VOUT

C2, C3 22µF Ceramic

Figure 3.3V/3A Buck Regulator

Page 1 of 15

AOZ1073
Ordering Information

Ambient Temperature Range

AOZ1073AIL
-40°C to +85°C

Package SO-8

Environmental Green Halogen Free
• All AOS products are offered in packages with Pb-free plating and compliant to RoHS standards.
• Parts marked as Green Products with “L” use reduced levels of Halogens, and are also RoHS compliant. Please visit for additional information.

PGND 1 VIN 2

AGND 3 FB 4

SO-8

Top View
8 LX 7 LX 6 EN 5 COMP

Pin Description

Pin Number Pin Name

Pin Function

PGND Power ground. Electrically needs to be connected to AGND.

Supply voltage input. When VIN rises above the UVLO threshold the device starts up.

AGND 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.

COMP External loop compensation pin.

The enable pin is active HIGH. Connect it to VIN if not used and do not leave it open.

PWM outputs connection to inductor.

Page 2 of 15

Block Diagram

AOZ1073

UVLO
5V LDO

Internal
& POR

Regulator

Reference & Bias

Softstart

ILimit

ISen
0.8V

COMP

EAmp

PWM Comp

PWM Control Logic

More datasheets: PT7M6425NLTA3EX | PT7M6422CHTA3EX | 82502-00000 | FDC6901L | 3PGT | 3PGD | 3PGC | 3PGD-F | 13903 | AOZ1073AIL_8

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Datasheet ID: AOZ1073AIL-4_2 516310