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MAX1858EVKIT

更新时间： 2024-09-14 23:45:51
品牌 Logo 应用领域
美信 - MAXIM /
页数 文件大小 规格书
6页 201K
描述
Evaluation Kit for the MAX1858/MAX1875/MAX1876

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中文翻译

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MAX1858EVKIT 数据手册

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19-2613; Rev 0; 10/02  
MAX1858 Evaluation Kit  
General Description  
Features  
ꢀ 8V to 20V Input Voltage Range  
ꢀ 1.8V and 2.5V Adjustable Output Voltages  
ꢀ 10A Output Current (2.5V Output)  
ꢀ 10A Output Current (1.8V Output)  
ꢀ Lossless Foldback Current Limit  
ꢀ 600kHz Switching Frequency  
The MAX1858 evaluation kit (EV kit) demonstrates the  
MAX1858’s standard application circuit. This dual PWM  
synchronous DC-to-DC converter generates outputs  
down to 0.75V for core, I/O, and logic supplies.  
The MAX1858 EV kit provides dual 1.8V and 2.5V output  
voltages from an 8V to 20V input voltage range. It delivers  
up to 10A output current for the 2.5V output and 10A for  
the 1.8V output with greater than 90% efficiency. Both  
converters operate 180 degrees out-of-phase to reduce  
input ripple current. The EV kit operates at 600kHz  
switching frequency and has superior line- and load-  
transient response.  
ꢀ RST Output with 140ms Delay  
ꢀ 180 Degrees Out-of-Phase Operation  
ꢀ 24-Pin QSOP Package  
ꢀ Low-Profile Components  
This EV kit is a fully assembled and tested circuit board.  
It allows evaluation of other output voltages in the 0.75V  
to 15V range. The MAX1858 EV kit can also be used to  
evaluate the MAX1875 and MAX1876.  
ꢀ Fully Assembled and Tested  
Ordering Information  
PART  
TEMP RANGE  
IC PACKAGE  
MAX1858EVKIT  
0°C to +70°C  
24 QSOP  
Component List  
DESIGNATION QTY  
DESCRIPTION  
DESIGNATION QTY  
DESCRIPTION  
10µF, 25V ceramic capacitors (1812)  
Taiyo Yuden TMK432BJ106KM or  
TDK C4532X5R1E106M  
JU1, JU2  
2
3-pin headers  
C1–C4  
4
1.1µH power inductors  
L1, L2  
2
Sumida CEP12D38-H-1R1 (18.1A,  
6m , 12.5mm x 12.5mm x 4.0mm)  
N-channel MOSFETs 8-pin SO  
International Rectifier IRF7811W or  
Fairchild FDS6694  
C5, C6, C22  
3
1
1
0.1µF ceramic capacitors (0805)  
0.01µF ceramic capacitor (0805)  
0.0068µF ceramic capacitor (0805)  
C7  
C8  
N1–N4  
4
220µF, 4V, 40m low-ESR capacitors  
Sanyo 4TPC220M  
C9–C16  
8
2
R1  
R2, R4, R5  
R3  
1
3
1
1
1
1
1
1
1
2
1
1
2
1
1
8.06k  
10k  
1ꢀ resistor (0805)  
1ꢀ resistors (0805)  
1ꢀ resistor (0805)  
5ꢀ resistor (0805)  
5ꢀ resistor (0805)  
1ꢀ resistor (0805)  
1ꢀ resistor (0805)  
5ꢀ resistor (0805)  
5ꢀ resistor (0805)  
5ꢀ resistors (0603)  
1ꢀ resistor (0805)  
1ꢀ resistor (0805)  
C17, C18  
100pF ceramic capacitors (0805)  
15k  
0.22µF, 16V X5R ceramic capacitor  
(0805)  
Taiyo Yuden EMK212BJ224KG or  
TDK2012X7R1H224KT  
4.7µF, 10V X5R ceramic capacitor  
(1206)  
Taiyo Yuden LMK316BJ475ML  
0.22µF, 50V X7R ceramic capacitor  
(0805)  
Taiyo Yuden UMK212BJ224MG or  
TDK C2012X7R1H224M  
100mA, 30V dual Schottky diode  
Central Semiconductor CMPSH-3A  
3A, 30V Schottky diodes  
Nihon EC31QS03L  
R6  
8.2k  
5.9k  
97.6k  
140k  
100k  
4.7  
C19  
C20  
C21  
1
1
1
R7  
R8  
R9  
R10  
R11  
R12, R13  
R14  
4.7  
118k  
84.5k  
Shunts  
R15  
D1  
1
2
2
None  
U1  
MAX1858EEG 24-pin QSOP  
MAX1858 PC board  
D2, D3  
D4, D5  
None  
100mA, 30V Schottky diodes  
Central Semiconductor CMSSH-3  
________________________________________________________________ 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.  
123456

中文翻译

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