AOZ22555QI

EZBuck™ DC-DC降压稳压器

Status: Full Production

AOZ22555QI是一款高效、易于使用的DC/DC同步降压稳压器，工作电压最高可达25V。该器件支持最大15A的连续输出电流，输出电压可调至0.6V（±1.0%）。AOZ22555QI集成了一个内部线性稳压器，可从输入产生5.3V VCC。AOZ22555QI采用4 mm × 4 mm QFN-23L封装，额定环境温度范围为-40°C至+85°C。

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Parametrics

Status	Full Production
Min V_in (V)	6.50
Max V_in (V)	25
Max Output I (A)	15
Min V_OUT (V)	0.60
Max V_OUT (V)	20
Package	QFN4x4B-23L
Control Mode	COT
Light Load Mode	Yes
Ultrasonic Mode	No
External Comp	No
V_CC Supply	Internal
Operating Freq (kHz)	1000
I_q (uA)	400
Soft Start (ms)	External
HS FET R_DS(ON) (mΩ)	11
LS FET R_DS(ON) (mΩ)	4
Max Duty Cycle	85%
Adj. I Limit	Yes
Remote Sense	Yes
Enable	Yes
PGood	Yes
Forced PWM	Yes
Ripple Reduction	Yes
Low Power Mode	No
Protection	Auto Restart
Digital Interface	NA
Output Discharge	No

Parametrics

Status	Full Production
Min V_in (V)	6.50
Max V_in (V)	25
Max Output I (A)	15
Min V_OUT (V)	0.60
Max V_OUT (V)	20
Package	QFN4x4B-23L
Control Mode	COT
Light Load Mode	Yes
Ultrasonic Mode	No
External Comp	No
V_CC Supply	Internal
Operating Freq (kHz)	1000
I_q (uA)	400
Soft Start (ms)	External
HS FET R_DS(ON) (mΩ)	11
LS FET R_DS(ON) (mΩ)	4
Max Duty Cycle	85%
Adj. I Limit	Yes
Remote Sense	Yes
Enable	Yes
PGood	Yes
Forced PWM	Yes
Ripple Reduction	Yes
Low Power Mode	No
Protection	Auto Restart
Digital Interface	NA
Output Discharge	No

Features

宽输入电压范围
- 6.5V至25V
最大15A的连续输出电流
输出电压可调至0.6V（±1.0%）
低导通电阻
- 11mΩ高压MOS侧
- 4mΩ低压MOS侧
内部LDO
可调节导通时间，最高可达3.5μs，最低可达80ns
可调节的开关频率范围高达1MHz（对于12VIN到1VOUT）
可选择PFM或强制PWM轻载运行
远程感应
可调节的电流限制设置
可调式软启动
Power Good输出
集成自举二极管
散热增强型的23-pin 4mm × 4mm QFN

Documentation

Title	Type	Date	File
AOZ22555QI Datasheet	Datasheets	2022-01-24	PDF
AOZ22555QI Marking	Markings	2022-01-24	PDF
AOZ22555QI Reliability Report	Reliability Reports	2022-01-24	PDF
QFN4x4B_23L_EP2_S	Package	2024-03-20	PDF
QFN4x4B_23L_EP2_S Tape & Reel	Tape & Reel	2024-04-25	PDF