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MAX16425

更新时间： 2024-09-17 14:57:31
品牌 Logo 应用领域
亚德诺 - ADI 开关稳压器
页数 文件大小 规格书
31页 3035K
描述
具有可选应用配置的集成式降压型开关稳压器

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MAX16425 数据手册

 浏览型号MAX16425的Datasheet PDF文件第2页浏览型号MAX16425的Datasheet PDF文件第3页浏览型号MAX16425的Datasheet PDF文件第4页浏览型号MAX16425的Datasheet PDF文件第5页浏览型号MAX16425的Datasheet PDF文件第6页浏览型号MAX16425的Datasheet PDF文件第7页 
Click here to ask an associate for production status of specific part numbers.  
25A, 4.5V to 16V, Integrated Step-Down Switching  
Regulator with Selectable Applications Configurations  
MAX16425/  
MAX16425A  
General Description  
Benefits and Features  
● High-Efficiency Solution with External Bias Supply  
The MAX16425/MAX16425A are fully-integrated, highly  
efficient step-down DC-DC switching regulators. These  
devices operate from 4.5V to 16V input supplies, and the  
output can be adjusted from 0.6V to 3.3V, delivering up to  
25A of load current. These single-chip regulators provide  
a compact high-efficiency, power-delivery solution for preci-  
sion outputs that demand fast transient response.  
• Up to 97% Peak  
• Up to 87% Full-Load  
• Up to 96% Light-Load Efficiency at 1A with DCM  
Enabled  
● Wide Operating Range  
• 4.5V to 16V Input Voltage Range  
• 0.6V to 3.3V Output Voltage Range  
• 25A (max) Load Current  
The two devices have different programmability options  
(see Table 3a and 3b for details) to enable a wide range  
of configurations. The programmable features include:  
internal/external reference voltage, output voltage  
set-point, switching frequency, overcurrent protection level  
(OCP), and soft-start timing. Discontinuous current mode  
(DCM) operation can be enabled through pin-strapping to  
improve light-load efficiency.  
● Flexible Design Allows Early PCB Definition  
• Footprint Compatible with MAX16491 (9A),  
VT2491 (15A), and VT2492 (25A)  
• Programmable Switching Frequency up to 1MHz  
• Programmable Soft-Start and STAT Delay Timings  
• Programmable Reference Voltage with External  
Input Option  
The MAX16425/MAX16425A include multiple protection  
and measurement features. Positive and negative cycle-  
by-cycle OCP, short-circuit protection, and overtemperature  
protection (OTP) ensure robust design. Input undervoltage  
and overvoltage lockout shut down the regulator to prevent  
damage when the input voltage is out of specification.  
Regulation is halted in case of an output overvoltage  
(OVP) event. A status pin indicates that the output voltage  
is within range and the output voltage is in regulation.  
The device has an analog output that can be configured  
to report output current or junction temperature with ±5%  
and ±8°C accuracy, respectively.  
• Programmable Positive and Negative OCP Limit  
● Advanced Architecture, Protection, and Reporting  
Guarantees Reliable Designs  
• Analog Current or Temperature Reporting  
• Differential Remote Sense with Open-Circuit  
Detection  
• Fast Transient Response with Quick-PWM™  
Architecture  
● Saves Board Space  
• Integrated Boost Switch  
• 27-Bump WLCSP (2.2mm x 3.8mm) Footprint  
• Operation Using Ceramic Input and Output Capacitors  
The devices are available in a 27-bump (2.2mm x 3.8mm)  
WLCSP package that provides low thermal resistance  
and minimizes the PCB area.  
Ordering Information appears at end of data sheet.  
Basic Application Circuit  
Applications  
● Servers/μServers  
INPUT: 4.5V TO 16V  
V
CC  
: 1.71V TO 1.89V  
C
VCC  
C
IN  
V
V
DDH  
CC  
● I/O and Chipset Supplies  
● GPU Core Supply  
C
BST  
OUTPUT:  
0.6V TO 3.3V,  
UP TO 25A  
MAX16425  
MAX16425A  
BST  
VX  
R
STAT  
L
OUT  
● DDR Memory: V  
, V , and V  
DDQ PP  
TT  
RAMP COMPENSATION  
R
R
● Point-of-Load (PoL) Applications  
STAT  
SENSE+  
C
C
R2  
R1  
R
OE  
OE  
SENSE-  
GND  
R
FB1  
DEVICE  
TYPE  
CURRENT  
RATING  
INPUT  
VOLTAGE  
OUTPUT  
VOLTAGE  
AGND  
C
LEAD  
PGM  
R
LAG  
LEAD COMPENSATION  
FB2  
MAX16425  
C_SEL  
25A  
4.5V to 16V  
0.6V to 3.3V  
C
OUT  
R_SEL  
R
C
LAG  
MAX16425A  
Quick-PWM is a trademark of Maxim Integrated Products, Inc.  
19-100471; Rev 1; 5/23  
©
2023 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners.  
One Analog Way, Wilmington, MA 01887 U.S.A. Tel: 781.329.4700 © 2023 Analog Devices, Inc. All rights reserved.  
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