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| 型号： | AOZ1231QI-01 |
| 厂商： | Alpha & Omega Semiconductor Inc |
| 文件页数： | 1/17页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 4A 30QFN |
| 标准包装： | 1 |
| 系列： | EZBuck™ |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.8 V ~ 23.8 V |
| 输入电压： | 4.5 V ~ 28 V |
| PWM 型： | 电流模式 |
| 频率 - 开关： | 100kHz ~ 1MHz |
| 电流 - 输出： | 4A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 30-VFQFN 裸露焊盘 |
| 包装： | 标准包装 |
| 供应商设备封装： | 30-QFN（5x5） |
| 其它名称： | 785-1275-6 |
AOZ1231-01
28V/4A Synchronous EZBuck TM Regulator
General Description
The AOZ1231-01 is high-efficiency, easy-to-use DC/DC
synchronous buck regulator that operates up to 28V.
The device is capable of supplying 4A of continuous
output current with an output voltage adjustable down to
0.8V (±1.0%).
The AOZ1231-01 integrates an internal linear regulator
to generate 5.3V V CC from the input source. If the input
voltage is lower than 5.3V, the linear regulator operates
in low drop-output mode and the V CC 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 set up to 1MHz.
The devices feature multiple protection functions such
as V CC under-voltage lockout, cycle-by-current limit,
output over-voltage protection, short-circuit protection,
and thermal shutdown.
The AOZ1231-01 is available in a 5mm × 5mm
QFN-30L package and is rated over a -40°C to +85°C
ambient temperature range.
Features
? Wide input voltage range:
– 4.5V to 28V (internal V CC )
– 2.7V to 28V (external V CC )
? 4A continuous output current
? Output voltage adjustable to 0.8V (±1.0%)
? Low R DS(ON) internal NFETs
– 40m ? high-side
– 25m ? low-side
? Constant On-time with input feed-forward
? Programmable frequency up to 1MHz
? Internal 5.3V, 20mA linear regulator
? Ceramic capacitor stable
? Adjustable soft start
? Power Good output
? Over voltage protection
? Integrated bootstrap diode
? Cycle-by-cycle current limit
? Short-circuit protection
? Thermal shutdown
? Thermally enhanced 5mm × 5mm QFN-30L 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
Rev. 1.1 June 2012
www.aosmd.com
Page 1 of 17
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| AOZ1232QI-01 | 功能描述:IC REG BUCK SYNC ADJ 6A 30LQFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:EZBuck™ 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:两者兼有 输出数:1 输出电压:5V，1 V ~ 10 V 输入电压:3.5 V ~ 28 V PWM 型:电流模式 频率 - 开关:220kHz ~ 1MHz 电流 - 输出:600mA 同步整流器:无 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:16-SSOP（0.154"，3.90mm 宽） 包装:带卷 (TR) 供应商设备封装:16-QSOP |
| AOZ1233-01 | 制造商:AOSMD 制造商全称:Alpha & Omega Semiconductors 功能描述:28V/8A Synchronous EZBuckTM Regulator |
| AOZ1233QI-01 | 功能描述:IC REG BUCK SYNC ADJ 6A 30QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:EZBuck™ 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:两者兼有 输出数:1 输出电压:5V，1 V ~ 10 V 输入电压:3.5 V ~ 28 V PWM 型:电流模式 频率 - 开关:220kHz ~ 1MHz 电流 - 输出:600mA 同步整流器:无 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:16-SSOP（0.154"，3.90mm 宽） 包装:带卷 (TR) 供应商设备封装:16-QSOP |
| AOZ1235QI-01 | 制造商:Alpha & Omega Semiconductor 功能描述:2.7V-28V 10A COT EZBUCK REGULA 制造商:Alpha & Omega Semiconductor 功能描述:IC REGULATOR |
| AOZ1236QI-01 | 功能描述:Buck Switching Regulator IC Positive Adjustable 0.8V 1 Output 6A 23-VFQFN Exposed Pad 制造商:alpha & omega semiconductor inc. 系列:EZBuck?? 包装:带卷（TR） 零件状态:有效 功能:降压 输出配置:正 拓扑:降压 输出类型:可调式 输出数:1 电压 - 输入（最小值）:2.7V 电压 - 输入（最大值）:28V 电压 - 输出（最小值/固定）:0.8V 电压 - 输出（最大值）:23.8V 电流 - 输出:6A 频率 - 开关:200kHz ~ 1MHz 同步整流器:是 工作温度:-40°C ~ 85°C（TA） 安装类型:表面贴装 封装/外壳:23-VFQFN 裸露焊盘 供应商器件封装:23-QFN（4x4） 标准包装:3,000 |
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