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MAX17575 PDF预览

MAX17575

更新时间: 2024-01-20 07:40:35
品牌 Logo 应用领域
美信 - MAXIM /
页数 文件大小 规格书
16页 1028K
描述
4.5V–60V, 1.5A, High-Efficiency Synchronous Step-Down DC-DC Converter with Internal Compensation

MAX17575 技术参数

是否Rohs认证: 符合生命周期:Active
包装说明:TDFN-12Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
Factory Lead Time:6 weeks风险等级:2.27
其他特性:ALSO HAS PFM CONTROL TECHNIQUE模拟集成电路 - 其他类型:SWITCHING REGULATOR
控制模式:CURRENT-MODE控制技术:PULSE WIDTH MODULATION
最大输入电压:60 V最小输入电压:4.5 V
标称输入电压:24 VJESD-30 代码:S-PDSO-N12
长度:3 mm功能数量:1
端子数量:12最高工作温度:125 °C
最低工作温度:-40 °C最大输出电流:2.8 A
最大输出电压:54 V最小输出电压:0.9 V
封装主体材料:PLASTIC/EPOXY封装代码:HVSON
封装等效代码:SOLCC12,.12,20封装形状:SQUARE
封装形式:SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度(摄氏度):260
座面最大高度:0.8 mm标称供电电压 (Vsup):24 V
表面贴装:YES切换器配置:BUCK
最大切换频率:2450 kHz技术:BICMOS
温度等级:AUTOMOTIVE端子形式:NO LEAD
端子节距:0.5 mm端子位置:DUAL
处于峰值回流温度下的最长时间:30宽度:3 mm
Base Number Matches:1

MAX17575 数据手册

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EVALUATION KIT AVAILABLE  
Click here for production status of specific part numbers.  
MAX17575  
4.5V–60V, 1.5A, High-Efficiency,  
Synchronous Step-Down DC-DC Converter  
with Internal Compensation  
General Description  
Benefits and Features  
Reduces External Components and Total Cost  
The MAX17575 high-efficiency, high-voltage, synchronous  
step-down DC-DC converter with integrated MOSFETs  
operates over a 4.5V to 60V input. The converter can  
deliver up to 1.5A and generates output voltages from  
• No Schottky-Synchronous Operation  
• Internal Compensation for Any Output Voltage  
• All-Ceramic Capacitors, Compact Layout  
0.9V up to 0.9 x V . The feedback (FB) voltage is accu-  
IN  
Reduces Number of DC-DC Regulators to Stock  
rate to within ±1.2% over -40°C to +125°C. Built-in com-  
pensation across the output-voltage range eliminates the  
need for external components. The MAX17575 features  
peak-current-mode control architecture and operates  
in fixed frequency forced PWM mode. The MAX17575  
offers a low minimum on-time that allows high switching  
frequencies and a smaller solution size.  
• Wide 4.5V to 60V Input  
• Adjustable 0.9V to 0.9 × V Output  
• Continuous 1.5A Current Over Temperature  
• 400kHz to 2.2MHz Adjustable Switching Frequency  
with External Synchronization  
IN  
Reduces Power Dissipation  
Peak Efficiency of 94%  
The device is available in a 12-pin (3mm × 3mm) TDFN  
package. Simulation models are available.  
Auxiliary Bootstrap LDO for Improved Efficiency  
• 4.65µA Shutdown Current  
Operates Reliably in Adverse Industrial Environments  
• Hiccup Mode Overload Protection  
• Adjustable Soft-Start  
Applications  
Industrial Control Power Supplies  
General-Purpose Point-of-Load  
Distributed Supply Regulation  
Base Station Power Supplies  
Wall Transformer Regulation  
High-Voltage, Single-Board Systems  
• Built-In Output-Voltage Monitoring with RESET  
• Programmable EN/UVLO Threshold  
• Monotonic Startup into Prebiased Load  
• Overtemperature Protection  
• High Industrial -40°C to +125°C Ambient Operating  
Temperature Range/-40°C to +150°C Junction  
Temperature Range  
Ordering Information appears at end of data sheet.  
5V Output: Typical Application Circuit and Efficiency vs. Load Current  
V
IN  
V
EN/UVLO  
BST  
IN  
C1  
f
= 500kHz  
V
SW  
2.2µF  
PGND  
SGND  
C4  
0.1µF  
L1  
15µH  
MAX17575  
OUT  
5V, 1.5A  
LX  
FB  
R1  
RT/SYNC  
SS  
FB  
75kΩ  
C5  
22µF  
FB  
RESET  
EXTVCC  
R3  
4.7Ω  
C3  
5.6nF  
R2  
16.2kΩ  
V
CC  
EP  
C2  
2.2µF  
C6  
0.1µF  
19-8785; Rev 3; 12/19  

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