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MAX20022ATIA/V+

更新时间： 2024-09-24 21:13:31
品牌 Logo 应用领域
美信 - MAXIM 开关
页数 文件大小 规格书
16页 841K
描述
Switching Regulator, Current-mode, 1A, 2400kHz Switching Freq-Max, PQCC28,

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中文翻译

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MAX20022ATIA/V+ 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active包装说明：QCCN, LCC28,.2SQ,20
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：12 weeks
风险等级：2.3模拟集成电路 - 其他类型：SWITCHING REGULATOR
控制模式：CURRENT-MODEJESD-30 代码：S-PQCC-N28
湿度敏感等级：1端子数量：28
最高工作温度：125 °C最低工作温度：-40 °C
最大输出电流：1 A封装主体材料：PLASTIC/EPOXY
封装代码：QCCN封装等效代码：LCC28,.2SQ,20
封装形状：SQUARE封装形式：CHIP CARRIER
峰值回流温度（摄氏度）：NOT SPECIFIED认证状态：Not Qualified
子类别：Switching Regulator or Controllers表面贴装：YES
最大切换频率：2400 kHz温度等级：AUTOMOTIVE
端子形式：NO LEAD端子节距：0.5 mm
端子位置：QUAD处于峰值回流温度下的最长时间：NOT SPECIFIED
Base Number Matches：1

MAX20022ATIA/V+ 数据手册

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EVALUATION KIT AVAILABLE  
MAX20021/MAX20022  
Automotive Quad, Low-Voltage  
Step-Down DC-DC Converters  
General Description  
Benefits and Features  
● Quad Step-Down DC-DC Converters with Integrated  
The MAX20021/MAX20022 power-management ICs  
(PMICs) integrate four low-voltage, high-efficiency, step-  
down DC-DC converters. Each of the four outputs is  
factory or resistor programmable between 1.0V to 4.0V  
and can deliver up to 1.0A of current. The PMICs operate  
from 3.0V to 5.5V, making them ideal for automotive point-  
of-load and post-regulation applications.  
FETs  
● Operate from 3.0V to 5.5V Supply Voltage  
● 1.0V to 4.0V Fixed or Adjustable Output Voltage  
● 2.2MHz (MAX20022) or 3.2MHz (MAX20021)  
Switching Frequency  
● Four Channels Capable of Delivering Up to 1A Each  
● Designed to Improve Automotive EMI Performance  
• Forced-PWM Operation  
The PMICs feature fixed-frequency PWM-mode operation  
with a switching frequency of 2.2MHz or 3.2MHz. High-  
frequency operation allows for an all-ceramic capacitor  
design and small-size external components. The low-  
resistance on-chip switches ensure high efficiency at  
heavy loads while minimizing critical inductances, making  
the layout a much simpler task with respect to discrete  
solutions. Internal current sensing and loop compensation  
reduce board space and system cost.  
• Two Channels 180º Out-of-Phase  
• SYNC Input  
• Spread-Spectrum Option  
● Soft-Start and Supply Sequencing Reduces Inrush  
Current  
● Individual Enable Inputs and Power-Good Outputs to  
Simplify Sequencing  
The PMICs offer a spread-spectrum option to reduce  
radiated emissions. Two of the four buck converters oper-  
ate 180º out-of-phase with the internal clock. This feature  
reduces the necessary input capacitance and improves  
EMI as well. All four buck converters operate in constant-  
PWM mode outside the AM band. The PMICs offer a  
SYNC input to synchronize to an external clock.  
● OV/UV Input-Voltage Monitoring  
● Overtemperature and Short-Circuit Protection  
● 28-Pin (5mm x 5mm x 0.8mm) TQFN-EP Package  
● -40ºC to +125ºC Operating Temperature Range  
The PMICs provide individual enable inputs and power-  
good/reset outputs, as well as factory-programmable  
RESET times.  
Simplified Block Diagram  
V
OUT1  
The PMICs offer several important protection features  
including: input overvoltage protection, input undervoltage  
monitoring, input undervoltage lockout, cycle-by-cycle  
current limiting, and overtemperature shutdown. The  
input undervoltage monitor indicates a brownout condition  
by driving PG_ low when the input falls below the UVM  
threshold.  
MAX20021  
10kΩ  
EN_  
SEL  
PG_  
CONTROL  
5V  
V
A
SYNC  
PV_  
SS OSC  
1µF  
GND  
5V  
4 CHANNELS  
The MAX20021/MAX20022 PMICs are available in a  
28-pin TQFN package with an exposed pad and are  
specified for operation over the -40ºC to +125ºC automo-  
tive temperature range.  
2.2µF  
1.5µH  
LX_  
STEP-DOWN  
PWM OUT_  
1.0V TO 4.0V  
V
OUT_  
10µF  
UP TO  
Applications  
●ꢀ Automotive  
●ꢀ Industrial  
PGND_  
OUTS_  
0.5A OR 1A  
EN  
Ordering Information/Selector Guide appear at end of data  
sheet.  
EP  
For related parts and recommended products to use with this part, refer  
to www.maximintegrated.com/MAX20021.related.  
19-6628; Rev 3; 8/14  
1234567...16

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