The AOZ1236-01 is a high-efficiency, easy-to-use DC/DC
synchronous buck regulator that operates up to 28V.
The device is capable of supplying 6A of continuous
output current with an output voltage adjustable down to
0.8V (±1.0%).
The AOZ1236-01 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 AOZ1236-01 is available in a 4mm x 4mm QFN-23L
package and is rated over a -40°C to +85°C ambient
temperature range.
aoz1236-01是一種高效、易用的直流/ DC
同步降壓穩(wěn)壓器，工作電壓28V。
該裝置能夠提供連續(xù)的6A條。
可調(diào)輸出電壓低至0.8V輸出電流（±1%）。
aoz1236-01集成了一個內(nèi)部線性穩(wěn)壓器
從輸入產(chǎn)生5.3v VCC。如果輸入電壓比5.3v較低，
線性穩(wěn)壓器在低dropoutput模式，
它允許VCC電壓等于輸入電壓減去內(nèi)部線性穩(wěn)壓器的壓降輸出電壓。
帶有輸入的專有恒定定時PWM控制
前饋導(dǎo)致超快速瞬態(tài)響應(yīng)
保持相對恒定的開關(guān)頻率
整個輸入電壓范圍。開關(guān)頻率高達(dá)1MHz可外部程序。
該設(shè)備具有多種保護(hù)功能，
如：VCC欠壓鎖定，逐周期電流限制，
輸出過壓保護(hù)，短路保護(hù)，以及熱關(guān)機(jī)。
aoz1236-01采用4mm x 4mm qfn-23l是可用的
包裝和額定超過40°C至85°C周圍環(huán)境溫度范圍。
制造商零件編號：AOZ1236QI-01
制造商：Alpha & Omega Semiconductor Inc
描述：IC REG BUCK SYNC ADJ 6A QFN
系列：EZBuck?
類型：降壓（降壓）
輸出類型：可調(diào)式
輸出數(shù)：1
電壓 - 輸出：0.8 V ~ 23.8 V
電壓 - 輸入：2.7 V ~ 28 V
頻率 - 開關(guān)：200kHz ~ 1MHz
電流 - 輸出：6A
同步整流器：是
工作溫度：-40°C ~ 85°C
安裝類型：表面貼裝
封裝/外殼：23-VFQFN 裸露焊盤
供應(yīng)商器件封裝：23-QFN （4x4）
? Wide input voltage range
– 2.7V to 28V
? 6A continuous output current
? Output voltage adjustable down to 0.8V (±1.0%)
? Low RDS(ON) internal NFETs
– 35m? high-side
– 12m? low-side SRFET™
? Constant On-Time with input feed-forward
? Programmable frequency up to 1MHz
? Selectable PFM light load operation
? Ceramic capacitor stable
? Adjustable soft start
? Power Good output
? Integrated bootstrap diode
? Cycle-by-cycle current limit
? Short-circuit protection
? Thermal shutdown
? Thermally enhanced 4mm x 4mm QFN-23L package
Applications
? Portable computers
? Compact desktop PCs
? Servers
? Graphics cards
? Set-top boxes
? LCD TVs
? Cable modems
? Point-of-load DC/DC converters
? Telecom/Networking/Datacom equipment
寬輸入電壓范圍–2.7V至28V
連續(xù)輸出電流可調(diào)輸出電壓低至0.8V（±1%）
低RDS（ON）內(nèi)部NFET
–35m高邊
–12m低側(cè)srfet™
具有輸入前饋的定時常數(shù)
可編程頻率高達(dá)1MHz
可選擇PFM輕負(fù)載操作
陶瓷電容器穩(wěn)定
可調(diào)軟啟動
電源輸出良好
集成自舉二極管
逐周期電流限制
短路保護(hù)
熱關(guān)斷
熱增強(qiáng)的4mm x 4mm qfn-23l包
應(yīng)用
便攜式計算機(jī)
小型臺式個人電腦
服務(wù)器
顯卡
設(shè)置機(jī)頂盒
LCD TVs
電纜調(diào)制解調(diào)器
負(fù)載點(diǎn)DC/DC轉(zhuǎn)換器
電信/網(wǎng)絡(luò)/數(shù)據(jù)通信設(shè)備
