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MAX1842EVKIT

更新时间： 2024-10-02 23:45:51
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描述
Low-Power.Serial.14-Bit DACs with Voltage-Output[MAX5170/MAX5172/MAX5170AEEE/MAX5170AEEE-T/MAX5170BEEE/MAX5170BEEE-T/MAX5172AEEE/MAX5172AEEE-T/MAX5172BEEE/MAX5172BEEE-T ]

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MAX1842EVKIT 数据手册

 浏览型号MAX1842EVKIT的Datasheet PDF文件第2页浏览型号MAX1842EVKIT的Datasheet PDF文件第3页浏览型号MAX1842EVKIT的Datasheet PDF文件第4页 
19-1876; Rev 0; 12/00  
MAX1742/MAX1842 Evaluation Kits  
General Description  
____________________________Features  
The MAX1742 and MAX1842 evaluation kits (EV kits)  
provide a +1.8V adjustable output voltage from a +3V  
to +5.5V input source. The MAX1742 delivers up to 1A  
of output current, and the MAX1842 delivers up to 2.5A  
of output current.  
ꢀ 1A Output Current for MAX1742  
2.5A Output Current for MAX1842  
ꢀ Up to 1MHz Switching Frequency  
ꢀ Up to 95% Efficiency  
The MAX1742/MAX1842 are step-down switching regu-  
lators with internal synchronous-rectifiers that operate  
up to 1MHz, which minimizes external components. The  
devices feature resistor-programmable, fixed off-time  
current-mode operation for superior load- and line-tran-  
sient response, and achieve efficiencies up to 95%.  
ꢀ Synchronous Rectification for Improved  
Efficiency  
ꢀ No External Schottky Diode Required  
ꢀ Output Voltage  
+1.1V, +1.5V, +1.8V, or +2.5V Selectable  
+1.1V to V Adjustable  
The MAX1742/MAX1842 EV kits can also be used to  
evaluate other output voltages by adding feedback  
resistors R1 and R2 or by using the jumper-selectable  
+1.1V, +1.5V, +1.8V, or +2.5V settings.  
IN  
ꢀ +3V to +5.5V Input Voltage Range  
ꢀ <1µA (typ) IC Shutdown Current  
ꢀ Surface-Mount Construction  
ꢀ Fully Assembled and Tested  
Ordering Information  
PART  
TEMP. RANGE  
0 C to +70 C  
0 C to +70 C  
IC PACKAGE  
16 QSOP  
MAX1742EVKIT  
MAX1842EVKIT  
16 QSOP  
Component List  
DESIGNATION QTY  
DESCRIPTION  
DESIGNATION QTY  
DESCRIPTION  
10µF, 6.3V, X5R ceramic capacitor  
Taiyo Yuden JMK316BJ106ML,  
Murata GRM42-6X5R106K6.3, or  
Panasonic ECJ3YB0J106K  
33µF, 10V low-ESR capacitor  
Sanyo 10TPA33M (POSCAP)  
C8  
1
C1  
1
JU1, JU3  
JU2  
2
1
2-pin headers  
4-pin header  
MAX1742  
MAX1742  
47µF, 6.3V low-ESR capacitor  
Sanyo 6TPA47M (POSCAP)  
MAX1842  
100µF, 6.3V low-ESR capacitor  
Sanyo 6TPC100M (POSCAP)  
5.3µH, 1.9A inductor  
Sumida CDRH5D28-5R3NC  
MAX1842  
2.2µH, 3.8A inductor  
Sumida 4762-TO54,  
Coiltronics UP1B-2R2, or  
Murata LQS66C2R2M04  
C2  
1
L1  
1
2.2µF, 10V, X5R ceramic capacitor  
Taiyo Yuden LMK212BJ225MG  
C3  
C4  
C5  
1
1
1
R1  
R2  
0
0
1
1
1
1
3
Not installed  
0.01µF, 50V, X7R ceramic  
capacitor  
Not installed  
R3  
10Ω 5% resistor  
1MΩ 5% resistor  
75kΩ 1% resistor  
MAX1742EEE or MAX1842EEE  
Shunts  
470pF, 50V, X7R ceramic  
capacitor  
R4  
R5  
1µF, 10V, X7R ceramic capacitor  
Taiyo Yuden LMK212B105KG or  
Murata GRM40X7R105K010  
U1  
C6  
C7  
1
0
NONE  
Not installed  
________________________________________________________________ Maxim Integrated Products  
1
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,  
or visit Maxim’s website at www.maxim-ic.com.  
1234

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