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MAX1993EVKIT

更新时间： 2024-10-03 23:45:55
品牌 Logo 应用领域
美信 - MAXIM /
页数 文件大小 规格书
6页 200K
描述
Evaluation Kit for the MAX1992/MAX1993

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MAX1993EVKIT 数据手册

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19-2701; Rev 0; 12/02  
MAX1993 Evaluation Kit  
General Description  
Features  
ꢀ 7V to 24V Input Voltage Range  
The MAX1993 evaluation kit (EV kit) demonstrates the  
MAX1993’s standard 4A application circuit. This DC-to-  
DC converter steps down high-voltage batteries and/or  
AC adapters, generating a precision, low-voltage rail for  
use as chipset, DRAM, and other low-voltage supplies.  
ꢀ Preset 1.8V/2.5V Output Voltages (Adjustable from  
0.7V to 5.5V, MAX1992)  
ꢀ Dynamically Selectable Output Voltages 1.0V/1.5V  
(Adjustable from 0.7V to 5.5V, MAX1993)  
The MAX1993 EV kit provides a dynamically adjustable  
1.0V/1.5V output voltage from 7V to 24V battery input  
range. It delivers up to 4A output current with greater  
than 90% efficiency. The EV kit operates at 300kHz  
switching frequency and has superior line- and load-  
transient response.  
ꢀ 4A Output Current  
ꢀ 300kHz Switching Frequency  
ꢀ Selectable Inductor Saturation Protection  
ꢀ Power-Good Output  
ꢀ Selectable Overvoltage/Undervoltage Protection  
ꢀ Low-Profile Components  
This EV kit is a fully assembled and tested circuit  
board. It also allows the evaluation of other dynamically  
adjustable output voltages in the 0.7V to 5.5V range by  
changing R6, R7, and R8 resistors.  
ꢀ Fully Assembled and Tested  
Ordering Information  
This EV kit can also be used to evaluate the MAX1992,  
which has preset 1.8V/2.5V output voltages.  
PART  
TEMP RANGE IC PACKAGE  
MAX1993EVKIT  
0°C to +70°C 24 Thin QFN 4mm × 4mm  
Component List  
DESIGNATION QTY  
DESCRIPTION  
4-pin header  
DESIGNATION QTY  
DESCRIPTION  
JU4  
1
10µF, 25V ceramic capacitor (1812)  
Taiyo Yuden TMK432BJ106KM or  
TDK C4532X5R1E106M  
C1  
C2  
1
1
2
2.5µH, 7.5A power inductor  
Sumida CDRH104R-2R5  
L1  
1
270µF, 2.5V, 9mΩ low-ESR capacitor  
Sanyo 2R5TPE220M9  
Dual N-channel MOSFETs  
Fairchild FDS6982A  
N1A, N1B  
2
4
1µF, 10V X5R ceramic capacitors (0805)  
Taiyo Yuden LMK212BJ105KG or  
TDK C2012X5R105M  
R1, R11,  
R12, R22  
0Ω resistors (0603)  
C3, C7  
R2, R3,  
R13–R17,  
R20, R21  
C4  
C5  
1
1
0.1µF ceramic capacitor (0603)  
470pF ceramic capacitor (0603)  
0
Not installed (0603)  
R4  
R5  
1
1
2
1
1
1
100kΩ 1ꢀ resistor (0603  
49.9kΩ 1ꢀ resistor (0603)  
75kΩ 1ꢀ resistors (0603)  
150kΩ 1ꢀ resistor (0603)  
100kΩ 5ꢀ resistor (0603)  
20Ω 5ꢀ resistor (0805)  
0.22µF, 16V X5R ceramic capacitor  
(0805)  
Taiyo Yuden EMK212BJ224KG  
C6  
C8  
1
1
R6, R7  
R8  
1000pF ceramic capacitor (0603)  
R9  
10µF, 6.3V X5R ceramic capacitor  
(0805)  
TDK C2012X5R0J106M or  
Taiyo Yuden AMK212BJ106MG  
R10  
C9  
1
0.015Ω 1ꢀ, 1ꢁ2ꢂ resistor (2010)  
IRC LR2010-01-R015-F or  
Dale ꢂSL-2010-R015F  
R18  
1
C10, C11, C12  
D1  
0
1
Not installed (0603)  
R19  
U1  
0
1
4
4
1
Not installed (short PC trace) (0805)  
MAX1993ETG (24-pin thin QFN)  
Shunts  
1A, 30V Schottky diode  
Nihon EP10QY03 or Nihon EC10QS03  
None  
None  
None  
100mA, 30V Schottky diode  
Central Semiconductor CMPSH-3  
D2  
1
3
Rubber feet  
JU1, JU2, JU3  
3-pin headers  
MAX1993 PC board  
________________________________________________________________ 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

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