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MAX1952ESA-18

更新时间： 2024-10-02 23:45:55
品牌 Logo 应用领域
美信 - MAXIM 控制器
页数 文件大小 规格书
14页 311K
描述
SMPS Controller

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中文翻译

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MAX1952ESA-18 数据手册

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19-2622; Rev 0; 10/02  
1MHz, All-Ceramic, 2.6V to 5.5V Input,  
1.5A PWM Step-Down DC-to-DC Regulators  
General Description  
Features  
The MAX1951/MAX1952 high-efficiency, DC-to-DC  
step-down switching regulators deliver up to 1.5A of  
output current. The devices operate from an input volt-  
age range of 2.6V to 5.5V and provide an output volt-  
o Compact 0.385in2 Circuit Footprint  
o 10µF Ceramic Input and Output Capacitors, 2µH  
Inductor  
age from 0.8V to V , making the MAX1951/MAX1952  
IN  
o Efficiency Up to 94%  
ideal for on-board postregulation applications. The  
MAX1951 total output error is less than 1% over load,  
line, and temperature.  
o 1% Output Accuracy Over Load, Line, and  
Temperature (MAX1951)  
The MAX1951/MAX1952 operate at a fixed frequency of  
1MHz with an efficiency of up to 94%. The high operating  
frequency minimizes the size of external components.  
Internal soft-start control circuitry reduces inrush current.  
Short-circuit and thermal-overload protection improve  
design reliability.  
o Guaranteed 1.5A Output Current at +85°C  
o Operate from 2.6V to 5.5V Supply  
o Adjustable Output from 0.8V to V (MAX1951)  
IN  
o Preset Output of 1.8V (1.5% Accuracy) (MAX1952)  
o Internal Digital Soft-Soft  
The MAX1951 provides an adjustable output from 0.8V  
to V , whereas the MAX1952 has a preset output of  
IN  
1.8V. Both devices are available in a space-saving 8-pin  
SO package.  
o Short-Circuit and Thermal-Overload Protection  
Ordering Information  
Applications  
ASIC/DSP/µP/FPGA Core and I/O Voltages  
Set-Top Boxes  
PIN-  
PART  
TEMP RANGE  
OUTPUT  
PACKAGE  
Cellular Base Stations  
MAX1951ESA  
-40°C to +80°C 8 SO  
Adj 0.8V to V  
Fixed 1.8V  
IN  
Networking and Telecommunications  
MAX1952ESA-18 -40°C to +80°C 8 SO  
Pin Configuration  
Typical Operating Circuit  
OUTPUT  
INPUT  
2.6V TO 5.5V  
0.8V TO V , 1.5A  
IN  
TOP VIEW  
IN  
LX  
FB  
MAX1951  
V
1
2
3
4
8
7
6
5
IN  
CC  
V
CC  
REF  
GND  
FB  
LX  
MAX1951  
MAX1952  
PGND  
COMP  
COMP  
PGND  
REF  
GND  
OFF  
ON  
SO  
OPTIONAL  
________________________________________________________________ Maxim Integrated Products  
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at  
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.  
1234567...14

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