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MAX8550EVKIT

更新时间： 2024-11-26 11:14:35
品牌 Logo 应用领域
美信 - MAXIM /
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8页 290K
描述
Evaluation Kit

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MAX8550EVKIT 数据手册

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19-3436; Rev 1; 11/04  
MAX8550 Evaluation Kit  
General Description  
Features  
♦ VDDQ Preset to 2.5V/12A  
The MAX8550 evaluation kit (EV kit) is designed to evalu-  
ate the MAX8550 DDR power-supply solution for note-  
books, desktops, and graphics cards. The EV kit board  
produces VDDQ at the output of the synchronous PWM  
buck, VTT at the output of the sourcing/sinking LDO linear  
regulator, and VTTR at the output of the reference buffer.  
♦ VTT 1.25V Source/Sink 1.5A Continuous/3A Peak  
♦ VTTR 1.25V Source/Sink 10mA  
♦ VIN Range: 9V to 20V  
♦ Optimized Switching Frequency: 600kHz  
♦ Overvoltage/Undervoltage Protection  
♦ Standby  
The VDDQ output is preset to 2.5V and sources up to  
12A. The VTT output is always VDDQ/2 and can  
source/sink up to 3A of peak current and 1.5A of contin-  
uous current. The VTTR output is also always VDDQ/2  
and can source/sink up to 10mA.  
♦ Independent Shutdown  
The MAX8550 EV kit was conveniently designed with  
jumpers to select the OVP/UVP, TON, SKIP, STBY, and  
SHDN_ modes. The board’s default settings enable  
OVP (overvoltage protection), 600kHz switching fre-  
quency, low-noise PWM mode, VDDQ, VTT, and VTTR.  
♦ Power OK  
Ordering Information  
PART  
TEMP RANGE  
IC PACKAGE  
The VIN input accepts voltages from 9V to 20V and  
VDD requires a 5V bias supply.  
MAX8550EVKIT  
0°C to +70°C  
28 Thin QFN 5mm x 5mm  
Note: To evaluate the MAX8550A, request a free sample of the  
MAX8550AETI when ordering the MAX8550 EV kit. To evaluate  
the MAX8551, request a free sample of the MAX8551ETI when  
ordering the MAX8550 EV kit.  
The EV kit comes with the MAX8550 installed. Contact  
the factory for free samples of the MAX8550A or  
MAX8551 to evaluate these parts.  
Component List  
DESIGNATION QTY  
DESCRIPTION  
DESIGNATION QTY  
DESCRIPTION  
Not installed  
0.1µF 10%, 50V X7R ceramic  
capacitor (0603)  
TDK C1608X7R1H104K  
470µF 20%, 25V aluminum  
electrolytic capacitor (10mm x 16mm)  
Sanyo 25MV470WX  
C1  
1
C8D  
0
10µF 10%, 6.3V X5R ceramic  
capacitors (1206)  
TDK C3216X5R0J106K or  
TDK C3216X5R0J106M  
C2, C4A, C4B,  
C4C, C4D,  
C4E, C4F  
3900pF, 50V X7R ceramic capacitor  
(0603)  
Kemet C0603C392K5RAC  
7
C9  
C11, C12  
C14  
1
2
1
150µF, 4V, 25mΩ low-ESR POS  
capacitors (D2E)  
Sanyo 4TPE150M  
1µF 10%, 10V X5R ceramic  
capacitors (0603)  
TDK C1608X5R1A105K  
C3, C6, C13  
C5  
3
1
2
470pF 5%, 50V COG ceramic  
capacitor (0603)  
4.7µF 20%, 6.3V X5R ceramic  
capacitor (0805)  
TDK C1608COG1H471J  
TDK C2012X5R0J475M  
C15, C16  
D1  
2
1
Not installed (0603)  
0.22µF 20%, 16V X7R ceramic  
capacitors (0603)  
TDK C1608X7R1C224M  
C7, C10  
Schottky diode, 30V, 100mA (SOD-323)  
Central CMDSH-3  
JU1, JU2  
JU3–JU6  
2
4
4-pin headers  
3-pin headers  
10µF 20%, 25V X5R ceramic  
capacitors (1210)  
Taiyo Yuden TMK325BJ106MM  
TDK C3225X5R1E106M  
C8A, C8B, C8C  
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.  
12345678

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