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MAX17662

更新时间： 2024-09-27 14:57:39
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
23页 1300K
描述
3.5V至36V、2A、高效、同步降压型DC-DC转换器

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MAX17662 数据手册

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EVALUATION KIT AVAILABLE  
Click here to ask an associate for production status of specific part numbers.  
3.5V to 36V, 2A, High-Efficiency, Synchronous  
Step-Down DC-DC Converter  
MAX17662  
General Description  
Benefits and Features  
The Himalaya series of voltage regulator ICs, power mod-  
ules, and chargers enables cooler, smaller, and simpler  
power supply solutions. The MAX17662 is a high-efficien-  
cy, Himalaya synchronous step-down DC-DC converter  
with integrated MOSFETs operating over an input-voltage  
range of 3.5V to 36V. It can deliver up to 2A current.  
Output voltage is programmable from 0.6V up to 90%  
● Reduces External Components and Total Cost  
• No Schottky—Synchronous Operation  
• Internal Compensation Components  
• All-Ceramic Capacitors, Compact Layout  
● Reduces Number of DC-DC Regulators to Stock  
• Wide 3.5V to 36V Input  
• Adjustable Output Voltage Range from 0.6V up to  
of V . Built-in compensation across the output-voltage  
IN  
90% of V  
IN  
range eliminates the need for external compensation com-  
ponents.  
• Delivers Up to 2A Over the Temperature Range  
• 400kHz to 2.2MHz Adjustable Frequency  
The MAX17662 features a peak-current-mode control ar-  
chitecture. The MAX17662 can be operated in forced  
pulse-width modulation (PWM), or discontinuous-conduc-  
tion mode (DCM) to enable high efficiency under full-load  
and light-load conditions. The MAX17662 offers a low min-  
imum on-time that allows high switching frequencies and  
a smaller solution size.  
● Reduces Power Dissipation  
• Peak Efficiency of 95%  
• DCM Mode Enable Enhanced Light-Load Efficiency  
• Wide 2.4V to 12V Bootstrap Bias Input (EXTVCC)  
for Improved Efficiency  
• 6.5μA Shutdown Current  
● Operates Reliably in Adverse Industrial Environments  
• Hiccup-Mode Overload Protection  
• Adjustable and Monotonic Startup with Prebiased  
Output Voltage  
The feedback-voltage regulation accuracy over -40°C to  
+125°C is ±1.33%. The device is available in a 16-pin  
(3mm x 3mm) TQFN-EP package. Simulation models are  
available.  
• Built-in Output-Voltage Monitoring with RESET  
• Programmable EN/UVLO Threshold  
• Overtemperature Protection  
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  
• CISPR 32 Class B Compliance  
• Wide Industrial -40°C to +125°C Ambient Operating  
Temperature Range/-40°C to +150°C Junction  
Temperature Range  
Simplified Application Circuit  
5V OUTPUT, DCM MODE  
EFFICIENCY VS. LOAD CURRENT  
100  
V
IN  
V
IN  
V
BST  
LX  
OUT  
90  
80  
70  
60  
50  
40  
EN/UVLO  
RT  
V
IN=24V  
VIN=12V  
MAX17662  
PGND  
SS  
FB  
EXTVCC  
RESET  
V
CC  
V
OUT  
MODE  
SGND  
fSW = 500kHz  
EP  
0.0  
0.5  
1.0  
1.5  
2.0  
LOAD CURRENT (A)  
19-100525; Rev 1; 6/21  
Ordering Information appears at end of data sheet.  
One Analog Way, Wilmington, MA 01887 U.S.A. | Tel: 781.329.4700 | © 2021 Analog Devices, Inc. All rights reserved.  
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