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MAX17543ATP+ PDF预览

MAX17543ATP+

更新时间: 2024-02-13 08:12:04
品牌 Logo 应用领域
美信 - MAXIM 信息通信管理开关
页数 文件大小 规格书
19页 2586K
描述
Switching Regulator, Current-mode, 4.3A, 2450kHz Switching Freq-Max, BICMOS, TQFN-20

MAX17543ATP+ 技术参数

是否Rohs认证: 符合生命周期:Active
包装说明:HVQCCN,Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
Factory Lead Time:13 weeks风险等级:1.7
其他特性:ALSO OPERATES IN PFM MODE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:42 V最小输入电压:4.5 V
标称输入电压:24 VJESD-30 代码:S-XQCC-N20
长度:4 mm功能数量:1
端子数量:20最高工作温度:125 °C
最低工作温度:-40 °C最大输出电流:4.3 A
封装主体材料:UNSPECIFIED封装代码:HVQCCN
封装形状:SQUARE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 mm
Base Number Matches:1

MAX17543ATP+ 数据手册

 浏览型号MAX17543ATP+的Datasheet PDF文件第2页浏览型号MAX17543ATP+的Datasheet PDF文件第3页浏览型号MAX17543ATP+的Datasheet PDF文件第4页浏览型号MAX17543ATP+的Datasheet PDF文件第5页浏览型号MAX17543ATP+的Datasheet PDF文件第6页浏览型号MAX17543ATP+的Datasheet PDF文件第7页 
EVALUATION KIT AVAILABLE  
MAX17543  
4.5V–42V, 2.5A, High-Efficiency,  
Synchronous Step-Down DC-DC Converter  
with Internal Compensation  
General Description  
Benefits and Features  
The MAX17543 high-efficiency, high-voltage, synchronous  
step-down DC-DC converter with integrated MOSFETs  
operates over a 4.5V to 42V input. The converter can  
deliver up to 2.5A and generates output voltages from  
Reduces External Components and Total Cost  
• No Schottky—Synchronous Operation  
• Internal Compensation for Any Output Voltage  
• Built-In Soft-Start  
• All-Ceramic Capacitors, Compact Layout  
0.9V up to 0.9 x V . The feedback (FB) voltage is  
IN  
accurate to within ±1.1% over -40°C to +125°C.  
Reduces Number of DC-DC Regulators to Stock  
The MAX17543 uses peak current-mode control. The  
device can be operated in the pulse-width modulation  
(PWM), pulse-frequency modulation (PFM), or  
discontinuous conduction mode (DCM) control schemes.  
• Wide 4.5V to 42V Input  
• Adjustable 0.9V to 0.9 x V Output  
• 100kHz to 2.2MHz Adjustable Switching Frequency  
with External Synchronization  
IN  
The device is available in a 20-pin (4mm x 4mm) TQFN  
package. Simulation models are available.  
Reduces Power Dissipation  
Peak Efficiency >90%  
PFM/DCM Enables Enhanced Light-Load Efficiency  
• 2.8µA Shutdown Current  
Applications  
Industrial Power Supplies  
Distributed Supply Regulation  
High-Voltage Single-Board Systems  
Base Station Power Supply  
General-Purpose Point-of-Load  
Operates Reliably in Adverse Industrial Environments  
• Peak Current-Limit Protection  
• 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.  
Typical Application Circuit—5V, 500kHz Switching Frequency  
V
IN  
(6.5V TO 42V)  
C1  
2.2µF  
EN/UVLO  
V
IN  
V
IN  
V
IN  
RT  
BST  
LX  
C5  
0.1µF  
L1  
10µH  
V
OUT  
5V, 2.5A  
SYNC  
C4  
22µF  
MAX17543  
LX  
MODE  
R3  
178k  
LX  
FB  
V
CC  
C2  
2.2µF  
R4  
39kΩ  
SGND  
CF  
RESET  
SS  
PGND PGND PGND  
C3  
5.6nF  
f
= 500kHz  
SW  
19-7054; Rev 1; 7/16  

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