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HomeCommunitySubjectAOZ1280CI 1.2 A Simple Buck Regulator, SOT-23-6 1.5 MHz EZ Buck

AOZ1280CI 1.2 A Simple Buck Regulator, SOT-23-6 1.5 MHz EZ Buck

PMIC - Voltage Regulators - DC DC Switching Regulators SOT-23-6 -40°C~85°C TA 1.5MHz 0.95mm EZBuck? 95 % IC REG BUCK ADJ 1.2A SOT23-6

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Dec 13, 2021

Gary Pitman

How does Buck Converter work? | DC-DC Converter

PMIC - Voltage Regulators - DC DC Switching Regulators SOT-23-6 -40°C~85°C TA 1.5MHz 0.95mm EZBuck™ 95 % IC REG BUCK ADJ 1.2A SOT23-6

The AOZ1280CI is a high efficiency, simple to use, 1.2 A buck regulator which is flexible enough to be optimized for a variety of applications. This article is going to introduce pinout, features, applications, and other details about the AOZ1280CI regulator. Furthermore, there is a huge range of aos series components in stock. Welcome your RFQ!

 

AOZ1280CI

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What is AOZ1280CI?

The AOZ1280CI is a 1.2 A buck regulator with great efficiency and ease of use that can be tuned for a range of applications. The AOZ1280CI  accepts input voltages ranging from 3 to 26 V and outputs up to 1.2 A of continuous current. The output voltage can be adjusted down to 0.8 volts. The inductor size is reduced by the set 1.5 MHz PWM switching frequency.

The AOZ1280CI is available in a SOT23  -6L package and has a temperature range of -40 to +85 degrees Celsius.

AOZ1280CI Pinout

AOZ1280CI CAD Model

AOZ1280CI Symbol

 

AOZ1280CI Footprint

 

AOZ1280CI 3D Model

Specifications

Alpha & Omega Semiconductor Inc. AOZ1280CI technical specifications, attributes, parameters and parts with similar specifications to Alpha & Omega Semiconductor Inc. AOZ1280CI.

AOZ1280CI Tech Specifications

Alpha & Omega Semiconductor Inc. AOZ1280CI technical specifications, attributes, parameters and parts with similar specifications to Alpha & Omega Semiconductor Inc. AOZ1280CI.

Product Attribute Attribute Value
Factory Lead Time18 Weeks
MountSurface Mount
Mounting TypeSurface Mount
Package / CaseSOT-23-6
Number of Pins2Pins
Operating Temperature-40°C~85°C TA
PackagingTape & Reel (TR)
SeriesEZBuck™
Published2011
Part StatusActive
Product Attribute Attribute Value
Moisture Sensitivity Level (MSL)1 (Unlimited)
Number of Terminations6Terminations
Terminal PositionDUAL
Terminal FormGULL WING
Terminal Pitch0.95mm
JESD-30 CodeR-PDSO-G6
FunctionStep-Down
Number of Outputs1Output
Efficiency95 %
Output TypeAdjustable
Product Attribute Attribute Value
Voltage - Input (Min)3V
Output ConfigurationPositive
Max Output Voltage26V
Voltage - Output (Min/Fixed)0.8V
TopologyBuck
Control ModeCURRENT-MODE
Frequency - Switching1.5MHz
Synchronous RectifierNo
Min Output Voltage800mV
RoHS StatusROHS3 Compliant
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OZ1280CI Block Diagram

The following is the AOZ1280CI Block Diagram.

AOZ1280CI Block Diagram

AOZ1280CI Features

  • 3 V to 26 V operating input voltage range 

  • 240 mΩ internal NMOS 

  • High efficiency: up to 95 %

  • Internal compensation

  • 1.2 A continuous output current 

  • Fixed 1.5 MHz PWM operation 

  • Internal soft-start

  • Output voltage adjustable down to 0.8 V

  • Cycle-by-cycle current  limit

  • Short-circuit protection

  • Thermal shutdown 

  • Small size SOT23  -6L

 

AOZ1280CI Applications

  • Networking

  • Set-top boxes

  • DVD drives and HDD

  • LCD Monitors & TVs

  • Cable modems

  • Point of load DC/DC  conversion

  • Telecom/Networking/Datacom equipment

AOZ1280CI Alternatives

  • AOZ1282CI

  • AOZ18101DI Series:

 

The AOZ18101DI series, the first eFuse device for sub-power rails in server applications, is a current-limiting over-voltage protection Efuse targeting applications that require front-end protection at the input line, according to Alpha and Omega Semiconductor Limited. AOS' superior co-packaging technology, a high-performance IC with protection features, and a high SOA Trench MOSFET are used in these new devices. These devices are appropriate for servers, HDD and SSD drivers, PCI cards, and networking and come in a small 3mm by 3mm DFN packaging.

AOZ1280CI Typical Application Circuit

The following is AOZ1280CI Typical Application Circuit.

AOZ1280CI Typical Application Circuit

Environmental & Export Classifications

AOZ1280CI Package Outline

AOZ1280CI Manufacturer

Alpha and Omega Semiconductor, Inc., or AOS, is a designer, developer, and global supplier of a broad range of power semiconductors, including a wide portfolio of Power MOSFET  and Power IC products. AOS seeks to differentiate itself by integrating its expertise in device physics, process technology, design, and advanced packaging to optimize product performance and cost, and its product portfolio is designed to meet the ever-increasing power efficiency requirements in high volume applications, including portable computers, flat-panel TVs, battery packs, portable media players and power supplies.

Frequently Asked Questions

How does AOZ1280CI work?
The AOZ1280CI operates from a 3 V to 26 V input voltage range and provides up to 1.2 A of continuous output current. The output voltage is adjustable down to 0.8 V. The fixed 1.5 MHz PWM switching frequency reduces inductor size.
How much continuous output current does the AOZ1280CI provide?
1.2 A
What is the temperature range of the AOZ1280?
-40 to +85 degrees Celsius
FAQ
How does AOZ1280CI work?
The AOZ1280CI operates from a 3 V to 26 V input voltage range and provides up to 1.2 A of continuous output current. The output voltage is adjustable down to 0.8 V. The fixed 1.5 MHz PWM switching frequency reduces inductor size.
How much continuous output current does the AOZ1280CI provide?
1.2 A
What is the temperature range of the AOZ1280?
-40 to +85 degrees Celsius

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