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MAX20073ATBBV PDF预览

MAX20073ATBBV

更新时间: 2024-09-30 02:52:03
品牌 Logo 应用领域
美信 - MAXIM /
页数 文件大小 规格书
12页 595K
描述
Single 2A/3A 2.2MHz Low-Voltage Step-Down DC-DC Converters

MAX20073ATBBV 数据手册

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EVALUATION KIT AVAILABLE  
MAX20073/MAX20074  
Single 2A/3A 2.2MHz Low-Voltage  
Step-Down DC-DC Converters  
General Description  
Benefits and Features  
High-Feature Set in Ultra-Small Footprint  
The MAX20073/MAX20074 high-efficiency switching  
regulator family delivers up to 3A load current from 0.5V to  
3.8V. The devices operate from an input voltage range of  
2.7V to 5.5V, making them ideal for on-board point-of-load  
and post-regulation applications. Total output error is less  
than ±1.5% over load, line, and temperature.  
High-Efficiency DC-DC Converter  
• Up to 3A Output Current  
• 2.7V to 5.5V Operating Supply Voltage  
• Resistor-Adjustable or Factory-Preset  
Output Voltage  
• Synchronizable, 2.2MHz Switching-Frequency  
Enable Input  
RESET Output  
The devices feature fixed-frequency PWM mode of opera-  
tion, with a 2.2MHz switching frequency. High-frequency  
operation enables an all-ceramic capacitor design and  
small external components.  
• Spread-Spectrum Enable Input  
• Forced-PWM and Skip Modes  
• Current-Mode Architecture  
• 3mm x 3mm x 0.85mm 10-Pin TDFN  
High Precision  
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. Following a simple layout and footprint  
ensures first-pass success in new designs.  
• 107% Overvoltage Monitor  
• 93% Undervoltage Monitor  
• ±1.5% Output-Voltage Accuracy  
• Excellent Load Transient Performance  
• Overtemperature and Short-Circuit Protection  
• -40°C to +125°C Operating Temperature Range  
The devices provide an enable input, spread-spectrum  
enable input, and RESET output. The output voltage can  
be preset at the factory to allow customers to achieve  
±1.5% output-voltage accuracy without using expensive  
0.1% external resistors. In addition, the output voltage  
can be set to any customer value by using two external  
resistors at the feedback with 0.5V internal reference. The  
device offers a fixed 0.85ms soft-start time.  
The 10-pin TDFN exposed pad devices include  
overtemperature shutdown and overcurrent limiting. All  
devices are designed to operate over the -40°C to +125°C  
ambient temperature range.  
Ordering Information appears at end of data sheet.  
Typical Operating Circuit  
Applications  
Automotive  
V
PV  
PV  
1µH  
4.7µF  
PV  
3.3V  
EN  
PGND  
LX  
Point-of-Load  
V
MAX20073  
MAX20074  
56.2k  
10Ω  
10pF  
22µF  
AV  
OUT  
1µF  
10kΩ  
GND  
V
PV  
20KΩ  
SYNC  
SSEN  
RESET  
EP  
19-8556; Rev 1; 7/18  

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