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MAX20743EPL+T PDF预览

MAX20743EPL+T

更新时间: 2024-11-16 02:52:55
品牌 Logo 应用领域
美信 - MAXIM /
页数 文件大小 规格书
31页 1029K
描述
Integrated, Step-Down Switching Regulator with PMBus

MAX20743EPL+T 数据手册

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MAX20743  
Integrated, Step-Down Switching  
Regulator with PMBus  
General Description  
Benefits and Features  
High-Power Density and Low Component Count  
The MAX20743 is a fully integrated, highly efficient  
switching regulator with PMBus™ for applications  
operating from 4.5V to 16V and requiring up to 35A  
maximum load. This single-chip regulator provides  
extremely compact, high-efficiency power delivery  
solutions with high-precision output voltages and excellent  
transient response for networking, datacom and telecom  
equipment.  
2
• Overall Solution Size 509mm Including Inductor  
and Output Capacitors  
• 90.8% Peak Efficiency with V  
= 12V and  
DDH  
V
= 1V  
OUT  
• Fast Transient Response: Supports Up to 300A/μs  
Load-Step Transients  
Optimized Component Performance and Efficiency  
with Reduced Design-In Time  
The IC offers a broad range of programmable features  
through either the PMBus or through a capacitor and  
resistor connected to a dedicated programming pin.  
Using this feature, the operation can be optimized for a  
specific application, reducing the component count and/  
or setting appropriate trade-offs between the regulator’s  
performance and system cost. Ease of programming  
enables using the same design for multiple applications.  
• PMBus-Compliant Interface for Telemetry and  
Power Management  
• Voltage, Current and Temperature Reporting  
through Digital Bus  
Increased Power-Supply Reliability with System and  
IC Self-Protection Features  
• Differential Remote Sense with Open-Circuit  
Detection  
• Hiccup Overcurrent Protection  
• Programmable Thermal Shutdown  
The IC includes protection and telemetry features. Positive  
and negative cycle-by-cycle overcurrent protection and  
overtemperature protection ensure a rugged design. Input  
undervoltage lockout shuts down the device to prevent  
operation when the input voltage is out of specification.  
A status pin provides an output signal to show that the  
output voltage is within range and the system is regulating.  
Typical System Efficiency vs.  
Load Current (V  
= 12V)  
DDH  
100  
95  
90  
85  
80  
75  
70  
65  
60  
55  
50  
Applications  
Communication Equipment  
Networking Equipment  
Servers and Storage Equipment  
Point-of-Load Voltage Regulators  
● μP Chipset  
Memory V  
VOUT= 5V  
= 3.3V  
= 1.8V  
VOUT
VOUT = 1.2V  
VOUT = 1V  
DDQ  
V
OUT  
I/O  
CURRENT  
RATING* VOLTAGE  
INPUT  
OUTPUT  
VOLTAGE  
VOUT = 0.8V  
VOUT = 0.65V  
DESCRIPTION  
Electrical Rating  
Thermal Rating  
35A  
34A  
4.5V to 16V 0.6V to 5.5V  
0
5
10  
15  
20  
25  
30  
35  
IOUT (A)  
12V  
12V  
1V  
1V  
T
= 55°C, 200LFM  
A
Ordering Information appears at end of data sheet.  
Thermal Rating  
= 85°C, 0LFM  
22A  
T
A
*For specific operating conditions, refer to the SOA curves in  
PMBus is a trademark of SMIF, Inc.  
the Typical Operating Characteristics section.  
19-8582; Rev 1; 10/16  

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