The AOZ1267-01 is a high-efficiency, easy-to-use DC/DC

synchronous buck regulator that operates up to 28V.

The device is capable of supplying 8A of continuous

output current with an output voltage adjustable down to

0.8V (±1.0%).

The AOZ1267-01 integrates an internal linear regulator

to generate 5.3V VCC from input. If input voltage is lower

than 5.3V, the linear regulator operates at low dropoutput

mode, which allows the VCC voltage is equal to

input voltage minus the drop-output voltage of the

internal linear regulator.

A proprietary constant on-time PWM control with input

feed-forward results in ultra-fast transient response while

maintaining relatively constant switching frequency over

the entire input voltage range. The switching frequency

can be externally programmed up to 1MHz.

The device features multiple protection functions such as

VCC under-voltage lockout, cycle-by-cycle current limit,

output over-voltage protection, short-circuit protection, as

well as thermal shutdown.

The AOZ1267-01 is available in a 4mm x 4mm QFN-23L

package and is rated over a -40°C to +85°C ambient

temperature range.

aoz1267-01是一种高效、易用的DC/DC同步降压稳压器，工作电压28V。

该装置能提供8A输出电流连续可调输出电压低至0.8V（±1%）。

集成的aoz1267-01从输入产生5.3v VCC内部线性稳压器。

如果输入电压低于5.3v，线性稳压器在低dropoutput模式，

它允许VCC电压等于输入电压减去内部线性稳压器输出电压的下降。

一个专有的恒定时PWM控制与输入前馈的结果在超快速瞬态响应，

同时保持相对恒定的开关频率在整个输入电压范围内。

开关频率高达1MHz可外部程序。

该器件具有多种保护功能，

如VCC欠压锁定，逐周期电流限制，输出过压保护，短路保护，以及热关机。

aoz1267-01可在一个4mm x 4mm qfn-23l封装，额定在40°C + 85°C环境温度范围。