AOZ1268QI-02

Series:	EZBuck™
Packaging:	Tape & Reel (TR)
Part Status:	Active
Function:	Step-Down
Output Configuration:	Positive
Topology:	Buck
Output Type:	Adjustable
Number of Outputs:	1
Voltage - Input (Min):	2.7V
Voltage - Input (Max):	24V
Voltage - Output (Min/Fixed):	0.8V
Voltage - Output (Max):	20.4V
Current - Output:	10A
Frequency - Switching:	200kHz ~ 1MHz
Synchronous Rectifier:	Yes
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	23-PowerVFQFN
Supplier Device Package:	23-QFN (4x4)

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Introduction

The AOZ1268QI-02 is a DC/DC switching regulator optimized for battery powered applications. It is part of the Power Management Integrated Circuit (PMIC) voltage regulator family, specifically the DC/DC switching regulator range. AOZ1268QI-02 is noted for its low quiescent current and high efficiency in a small form factor of 3.3x2.8x0.75 mm. With continuous load current of 2A and fast transient response, AOZ1268QI-02 is capable of powering a wide range of applications.

Features and Benefits

AOZ1268QI-02 offers numerous features that enable it to provide high efficiency and low quiescent current operation. It incorporates a low ripple, low noise synchronous buck converter that allows it to maintain a low profile in mobile and battery-powered applications. The integrated power switches and low capacitance enable high-efficiency operation with minimal input and output voltage change across a wide range of loading. The device has an integrated low-resistance power switch, which reduces internal power loss. AOZ1268QI-02 also features open-drain power good output, pulse-by-pulse current limit protection, and thermal shutdown protection.In addition, AOZ1268QI-02 is compatible with a wide input power range, from 4.5V to 15V. It also features programmable switching frequency up to 2 MHz, allowing it to be used in different power circuits. This feature also helps to reduce external component size and cost.

Application Fields and Working Principle

The AOZ1268QI-02 is suitable for powering a wide range of applications, including smartphones, wearables, automotive, healthcare and industrial. As an example, the device can be used to power two circuit boards in a smartphone. The AOZ1268QI-02 is able to take two power sources separately and combine them in one device. This will enable a mobile device to maintain a compact form factor while still functioning as it should.The AOZ1268QI-02 follows the basic principles of switching regulator operation. It is able to step-down and step-up an input voltage to a desired output voltage by controlling the switching of power devices such as transistors and capacitors. It constantly monitors the output voltage and adjusts the current drawn to maintain the output voltage constant. AOZ1268QI-02\'s high-efficiency operation and low quiescent current make it an ideal choice for battery powered applications.

Conclusion

AOZ1268QI-02 is a low profile DC/DC switching regulator optimized for battery-powered applications. It boasts a low quiescent current, high efficiency and fast transient response. The integrated power switch, programmable switching frequency and wide voltage range makes it an ideal choice for powering a wide range of applications, including those in the smartphone, wearable and industrial space. The AOZ1268QI-02 operates on the basic principles of a switching regulator and continuously monitors the output voltage, adjusting the current drawn to maintain the desired output voltage.

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