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MAX1972EVKIT PDF预览

MAX1972EVKIT

更新时间: 2024-11-08 23:45:55
品牌 Logo 应用领域
美信 - MAXIM /
页数 文件大小 规格书
6页 123K
描述
Evaluation Kit for the MAX1970/MAX1971/MAX1972

MAX1972EVKIT 数据手册

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19-2469; Rev 0; 5/02  
MAX1972 Evaluation Kit  
General Description  
Features  
The MAX1972 evaluation kit (EV kit) is a fully assembled  
and tested circuit board that evaluates the MAX1970  
family of dual step-down regulators. The circuit oper-  
ates from an input voltage of 2.6V to 5.5V, and delivers  
a minimum of 750mA on each output. The output volt-  
Current-Mode, 1.4MHz Fixed-Frequency PWM  
Operation  
Dual-Output 180° Out-of-Phase Operation  
Reduces Input Ripple Current  
ages are programmable from 0.8V to V using external  
IN  
1ꢀ Output ꢁccuracy Oꢂer ꢃoad, ꢃine, and  
Temperature Ranges  
feedback resistors, or they can be preset to 3.3V or  
1.8V for output 1, and 2.5V or 1.5V for output 2. The  
board has a MAX1972 installed, but it can also be used  
to evaluate the MAX1970 and the MAX1971. The  
MAX1971 features a reset input (RSI), while the  
MAX1970/MAX1972 feature a power-fail output (PFO).  
750mꢁ Guaranteed Output Current  
2.6V to 5.5V Input  
Power-On Reset Output (POR)  
Power-Fail Output (MꢁX1970 and MꢁX1972)  
Power-On Reset Input (MꢁX1971)  
Selector Guide  
Ultra-Compact Design with Small External  
Components  
POR DELAY  
TIME (TYP)  
PART  
RSI PFO FREQUENCY  
Outputs ꢁdjustable from 0.8V to V  
1.8V/3.3V and 1.5V/2.5V Preset  
ꢁll Ceramic Capacitor ꢁpplication  
Soft-Start Reduces Inrush Current  
Fully ꢁssembled and Tested  
IN  
MAX1970EEE  
MAX1971EEE  
MAX1972EEE  
16.6ms  
175ms  
175ms  
No  
Yes  
No  
Yes  
No  
1.4MHz  
0.7MHz  
1.4MHz  
Yes  
Ordering Information  
Component Suppliers  
SUPPLIER  
Murata  
PHONE  
WEBSITE  
www6murata6com  
www6sumida6com  
www6taiyo-yuden6com  
PART  
TEMP RANGE  
IC PACKAGE  
ꢃꢃ0-4.ꢁ-1.00  
84ꢃ-9Xꢁ-0ꢁꢁꢁ  
408-Xꢃ.-41X0  
MAX1972EVKIT  
-40°C to +85°C  
16 QSOP  
Sumida  
Note: To evaluate the MAX1970 or MAX1971, request free sam-  
ples of these parts with the MAX1972EVKIT.  
Taiyo-Yuden  
Component List  
DESIGNATION QTY  
DESCRIPTION  
DESIGNATION QTY  
DESCRIPTION  
46ꢃµH ±.0ꢀ% 069A% 80minductors  
Sumida CD5H.D1ꢁ-45ꢃ  
10µF ±±0ꢀ% ꢁ6.3 ꢂX5  
ceramic capacitor (1±0ꢁ)  
L1% L±  
±
C1  
1
±
±
Taiyo-Yuden JMK.1ꢁBJ10ꢁML  
51  
5±% 5.  
54  
1
±
1
±
0
1
1
.
1
10±Xꢀ resistor (0ꢁ0.)  
100k±Xꢀ resistors (0ꢁ0.)  
8±k±Xꢀ resistor (0ꢁ0.)  
0resistors (0ꢁ0.)  
061µF ±10ꢀ% 1ꢁ3 ꢂꢃ5  
ceramic capacitors (0ꢁ0.)  
Taiyo-Yuden EMK10ꢃBJ104KA  
C±% C.  
C4% Cꢃ  
5X% 58  
5ꢁ% 59% 510  
5ꢃ  
Not installed  
ꢁ±0pF ±10ꢀ% X03 ꢂꢃ5  
ceramic capacitors (0ꢁ0.)  
Murata G5M.9ꢂꢃ5ꢁ±1K0X0AD  
.9k±Xꢀ resistor (0ꢁ0.)  
MAꢂ19ꢃ±EEE (1ꢁ-pin QSOP)  
Shunts  
U1  
None  
None  
10µF ±±0ꢀ% 43 ꢂX5  
ceramic capacitors (080X)  
Taiyo-Yuden AMK±1±BJ10ꢁMG  
MAꢂ19ꢃ±E3KIT PC board  
CX% Cꢁ  
±
.
MAꢂ19ꢃ0/MAꢂ19ꢃ1/MAꢂ19ꢃ±  
data sheet  
None  
1
JU1% JU±% JU.  
.-pin headers  
________________________________________________________________ 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.  

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