AOZ1016AI_4

AOZ1016AI_4 Datasheet


AOZ1016

Part Datasheet
AOZ1016AI_4 AOZ1016AI_4 AOZ1016AI_4 (pdf)
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AOZ1016

EZBuck 2A Simple Buck Regulator

The AOZ1016 is a high efficiency, simple to use, 2A buck regulator. The AOZ1016 works from a 4.5V to 16V input voltage range, and provides up to 2A of continuous output current with an output voltage adjustable down to 0.8V.

The AOZ1016 comes in an SO-8 package and is rated over a -40°C to +85°C ambient temperature range.
● 4.5V to 16V operating input voltage range ● internal PFET switch for high efficiency:
up to 95% ● Internal Schottky diode ● Internal soft start ● Output voltage adjustable to 0.8V ● 2A continuous output current ● Fixed 500kHz PWM operation ● Cycle-by-cycle current limit ● Short-circuit protection ● Under voltage lockout ● Output over voltage protection ● Thermal shutdown ● 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 22uF Ceramic

From uPC
20kΩ

C5 1nF

VIN EN

AOZ1016 LX

COMP FB

AGND PGND

L1 4.7uH

VOUT

C4, C6 22uF Ceramic

Figure 3.3V/2A Buck Regulator

Page 1 of 15

AOZ1016
Ordering Information

Ambient Temperature Range

AOZ1016AI AOZ1016AIL
-40°C to +85°C

Package SO-8

AOS Green Products use reduced levels of Halogens, and are also RoHS compliant. Please visit for additional information.

Environmental RoHS

Green Product

Pin Configuration

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

PGND

AGND

COMP

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 EN pin to VIN if not used. Do not leave the EN pin floating. PWM output connection to inductor. Thermal connection for output stage.

Page 2 of 15

Block Diagram

AOZ1016

UVLO
5V LDO

Internal
& POR

Regulator

Reference & Bias

Softstart

ILimit

ISen
0.8V

COMP

EAmp

PWM Comp

PWM Control Logic

Level Shifter
+ FET Driver
0.2V 0.96V
More datasheets: EFM32-G8XX-DK | EFM32-G2XX-DK | 10326 | 100600 | 2443 | ATA2069-3ASY | B82114RC4 | B82114RC1 | B82114RA4 | B82114RA1


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Datasheet ID: AOZ1016AI_4 516299