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MAX17574ATG+ PDF预览

MAX17574ATG+

更新时间: 2024-10-01 21:20:27
品牌 Logo 应用领域
美信 - MAXIM 信息通信管理开关输出元件
页数 文件大小 规格书
21页 1189K
描述
Switching Regulator, Current-mode, 5.85A, 2450kHz Switching Freq-Max, BICMOS, TQFN-24

MAX17574ATG+ 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:HVQCCN,
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:14 weeks
风险等级:2.29其他特性:ALSO OPERATES IN PFM MODE; OUTPUT VOLTAGE IS ADJUSTABLE FROM 0.9V TO 54V
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 V
JESD-30 代码:R-XQCC-N24长度:5 mm
功能数量:1端子数量:24
最高工作温度:125 °C最低工作温度:-40 °C
最大输出电流:6.7 A封装主体材料:UNSPECIFIED
封装代码:HVQCCN封装形状:RECTANGULAR
封装形式:CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度(摄氏度):NOT SPECIFIED
座面最大高度:0.8 mm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:QUAD处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:4 mmBase Number Matches:1

MAX17574ATG+ 数据手册

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EVALUATION KIT AVAILABLE  
MAX17574  
4.5V to 60V, 3A, High-Efficiency,  
Synchronous Step-Down DC-DC Converter  
with Internal Compensation  
General Description  
Benefits and Features  
Reduces External Components and Total Cost  
The MAX17574, 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 3A current. Output voltage is programmable from 0.9V  
• No Schottky-Synchronous Operation  
• Internal Compensation for Any Output Voltage  
• All-Ceramic Capacitors, Compact Layout  
to 90%V . The feedback voltage regulation accuracy over  
-40°C to +125°C is ±0.9%.  
IN  
Reduces Number of DC-DC Regulators to Stock  
• Wide 4.5V to 60V Input  
The MAX17574 features a peak-current-mode control  
architecture. The device can be operated in the pulse-  
width modulation (PWM), pulse-frequency modulation  
(PFM), or discontinuous-conduction mode (DCM) control  
schemes. A programmable soft-start feature allows users  
to reduce input inrush current. The device also incorporates  
an output enable/undervoltage lockout pin (EN/UVLO)  
that allows the user to turn on the part at the desired  
input voltage level. An open-drain RESET pin provides a  
delayed power-good signal to the system upon achieving  
successful regulation of the output voltage.  
• Output Adjustable from 0.9V to 90%V  
IN  
• Delivers up to 3A Current Over Temperature  
• 100kHz to 2.2MHz Adjustable Switching Frequency  
with External Synchronization  
Reduces Power Dissipation  
Peak Efficiency > 90%  
• PFM and DCM Modes Enable Enhanced  
Light-Load Efficiency  
Auxiliary Bootstrap LDO for Improved Efficiency  
• 2.8µA Shutdown Current  
Operates Reliably in Adverse Industrial Environments  
• Hiccup Mode Overload Protection  
The MAX17574 is available in a 24-pin (4mm x 5mm)  
TQFN package. Simulation models are available.  
• Adjustable Soft-Start and Prebiased Power-Up  
• 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  
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  
Ordering Information appears at end of data sheet.  
19-8635; Rev 1; 7/17  

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