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MAX17578

更新时间： 2023-12-20 18:45:41
品牌 Logo 应用领域
亚德诺 - ADI DC-DC转换器
页数 文件大小 规格书
24页 1672K
描述
4.5V至60V、1A高效、同步、反相输出DC-DC转换器

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MAX17578 数据手册

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EVALUATION KIT AVAILABLE  
Click here to ask an associate for production status of specific part numbers.  
4.5V to 60V, 1A High-Efficiency, Synchronous,  
Inverting Output DC-DC Converters  
MAX17577, MAX17578  
General Description  
Benefits and Features  
The Himalaya series of voltage regulator ICs, power mod-  
ules, and chargers enable cooler, smaller, and simpler  
power-supply solutions. The MAX17577 and MAX17578  
are high-efficiency, high-voltage, inverting, Himalaya syn-  
chronous DC-DC converters with integrated MOSFETs  
and internal compensation. The devices generate output  
● Reduces External Components and Total Cost  
• Synchronous Operation  
• All-Ceramic Capacitors, Compact Layout  
• Internal Loop Compensation  
• System Ground Referenced I/O Pins (EN/UVLO,  
RESET)  
voltages (V  
) from -0.9V to -36V and can deliver up to  
OUT  
● Flexibility to Support Multiple Rails in a System  
• Adjustable Output Voltage Range from -0.9V to  
-36V  
1A of load current from a wide 4.5V to (60V - |V  
put-voltage range.  
|) in-  
OUT  
The devices feature peak current-mode control architec-  
ture. The MAX17577 operates in continuous conduction  
mode (CCM) at all loads; thus, providing a constant fre-  
quency operation. The MAX17578 operates in discontinu-  
ous conduction mode (DCM) for superior efficiency at light  
loads. Low minimum on-time allows higher switching fre-  
quencies and small solution sizes.  
• Wide 4.5V to (60V - |V  
• Up to 1A Output Current  
• 400kHz to 2.2MHz Adjustable Frequency with  
External Clock Synchronization  
|) Input-Voltage Range  
OUT  
● Reduces Power Dissipation  
• 90.6% Peak Efficiency  
• DCM for Superior Light-Load Efficiency  
• 6.2μA Shutdown Current  
The devices allow the EN/UVLO, RESET, and RT/SYNC  
pins to be driven by signals that are referenced to system  
ground, eliminating the need for external-level shifter cir-  
cuits. The feedback-voltage regulation accuracy is ±1.3%  
over a wide -40°C to +125°C temperature range. The de-  
vices are available in a compact 12-pin (3mm x 3mm)  
TDFN-EP package. Simulation models are available.  
● Operates Reliably in Adverse Industrial Environments  
• Hiccup-Mode Overload Protection  
• Adjustable Soft-Start  
• Monotonic Startup with Prebiased Output Voltage  
• Built-In Output-Voltage Monitoring with RESET  
• Programmable EN/UVLO Threshold  
• Complies with CISPR 32 (EN55032) Class B  
Conducted and Radiated Emissions  
Applications  
● Industrial Control Power Supply  
● General-Purpose Point-of-Load  
● Gate-Drive Circuits  
• Overtemperature Protection  
• Wide -40°C to +125°C Ambient Operating  
Temperature Range/ -40°C to +150°C Junction  
Temperature Range  
● Motion Control  
● Wall-Transformer Regulation  
● High-Voltage, Single-Board System  
Simplified Application Circuit  
IN  
RESET  
V
IN  
EN/UVLO  
BST  
MAX17577/  
MAX17578  
RT/SYNC  
LX  
FB  
V
CC  
FB  
SS  
GND  
FB  
SOUT EP OUT  
V
OUT  
19-100840; Rev 1; 12/21  
Ordering Information appears at end of data sheet.  
One Analog Way, Wilmington, MA 01887 U.S.A. | Tel: 781.329.4700 | © 2022 Analog Devices, Inc. All rights reserved.  
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