AOZ2231CQI-01

EZBuck™ DC-DC降压稳压器

Status: Full Production

AOZ2231CQI-01是一款I2C可控、高效、易于使用的DC-DC同步降压稳压器，应用于6.5V至28V的输入电压范围。使用 I2C 总线控制输出电压的能力，简化了需要动态电压调节或电压裕度的微处理器或 SoC 的转换器设计。该器件支持最大4A的连续输出电流，输出电压在1.790625V至0.6V（±2.0%）之间可调。

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Parametrics

Status	Full Production
Min V_in (V)	6.50
Max V_in (V)	28
Max Output I (A)	4
Min V_OUT (V)	0.60
Max V_OUT (V)	1.79
Package	QFN4x4-22L
Control Mode	COT
Light Load Mode	Yes
Ultrasonic Mode	No
External Comp	No
V_CC Supply	Internal
Operating Freq (kHz)	400
I_q (uA)	500
Soft Start (ms)	4
HS FET R_DS(ON) (mΩ)	28
LS FET R_DS(ON) (mΩ)	28
Max Duty Cycle	85%
Adj. I Limit	No
Remote Sense	No
Enable	Yes
PGood	Yes
Forced PWM	Yes
Ripple Reduction	Yes
Low Power Mode	No
Protection	Selectable
Digital Interface	I2C
Output Discharge	No

Parametrics

Status	Full Production
Min V_in (V)	6.50
Max V_in (V)	28
Max Output I (A)	4
Min V_OUT (V)	0.60
Max V_OUT (V)	1.79
Package	QFN4x4-22L
Control Mode	COT
Light Load Mode	Yes
Ultrasonic Mode	No
External Comp	No
V_CC Supply	Internal
Operating Freq (kHz)	400
I_q (uA)	500
Soft Start (ms)	4
HS FET R_DS(ON) (mΩ)	28
LS FET R_DS(ON) (mΩ)	28
Max Duty Cycle	85%
Adj. I Limit	No
Remote Sense	No
Enable	Yes
PGood	Yes
Forced PWM	Yes
Ripple Reduction	Yes
Low Power Mode	No
Protection	Selectable
Digital Interface	I2C
Output Discharge	No

Features

宽输入电压范围
- 6.5V至28V
最大4A的连续输出电流
输出电压可在9.375mV内从0.6V到1.790625V调整
I2C控制的±2.0%输出电压精度
低导通电阻
- 28mΩ高压MOS侧
- 28mΩ低压MOS侧
带有输入前馈的恒定导通时间
可选择的PFM轻载操作
陶瓷电容稳定
Power Good输出
I2C地址编程
集成自举二极管
逐周期电流限制
短路保护
过电压保护
热关断
散热增强型的4mm x 4mm QFN-22L封装

Documentation

Title	Type	Date	File
AOZ2231CQI-01 Datasheet	Datasheets	2020-07-13	PDF
AOZ2231CQI-01 Marking	Markings	2024-03-13	PDF
QFN4x4_22L_EP2_S	Package	2024-06-07	PDF
QFN4x4_22L_EP2_S Tape & Reel	Tape & Reel	2024-04-25	PDF