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LTC3883EUH

更新时间： 2024-01-06 14:25:55
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
14页 3858K
描述
3-Phase Step-Down DC/DC Controller with Power System Management

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LTC3883EUH 数据手册

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DEMO MANUAL DC2052A  
LTC3880EUJ/LTC3883EUH  
3-Phase Step-Down DC/DC  
Controller with Power System  
Management  
DESCRIPTION  
Demonstration circuit 2052A is a 3-phase single output  
synchronousbuckconverterfeaturingtheLTC3880EUJ, a  
dual-phasecurrentmodecontroller,andtheLTC3883EUH,  
a single-phase current mode controller with input current  
sensing capability. Both the LTC®3880 and LTC3883 have  
a PMBus interface and the power system management  
functions.  
bus communication. This allows easy evaluation of the  
DC/DC converter. To fully explore the extensive digital  
power management features of these parts, download the  
GUI software LTpowerPlay™ onto your PC and use LTC’s  
2
I C/SMBus/PMBus Dongle DC1613A to connect to the  
board. LTpowerPlayallowstheusertoreconfigurethepart  
on the fly and store the configuration in EEPROM, view  
telemetryofvoltage,current,temperatureandfaultstatus.  
The layout of DC2052A is very compact with the total  
solution within a 1.1 inch by 1.2 inch area for LTC3880,  
and 1.1 inch by 0.35inch for LTC3883. The input volt-  
age range of this board is from 6.5V to 14V. The output  
voltage can be programmed from 0.5V to 1.8V, with an  
output current of up to 60A total. The factory default set-  
ting for the output voltage is 1.0V. The DC2052A also has  
an onboard pulse generator circuit and the dynamic load  
circuit which make it easy for the customer to evaluate  
the transient performances.  
GUI Download  
The software can be downloaded from:  
http://www.linear.com/ltpowerplay  
For more details and instructions of LTpowerPlay, please  
refer to “LTpowerPlay for LTC3880 Quick Start Guide.”  
Design files for this circuit board are available at  
http://www.linear.com/demo  
The DC2052A powers up to default settings and produces  
powerbasedonconfigurationresistorsorthenon-volatile  
memory settings (NVM) without the need for any serial  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and  
LTpowerPlay is a trademark of Linear Technology Corporation. All other trademarks are the  
property of their respective owners.  
PERFORMANCE SUMMARY Specifications are at TA = 25°C  
SYMBOL  
PARAMETER  
CONDITIONS  
MIN  
6.5  
0.5  
0
TYP  
12  
MAX  
14  
UNITS  
V
V
Input Supply Range  
Output Voltage Range  
Output Current Range  
Factory Default Switching  
Peak Efficiency  
V
V
IN  
I
= 0A to 60A, V = 6.5V to 14V  
1.0  
1.8  
60  
OUT  
OUT  
OUT  
IN  
I
A
F
SW  
350  
kHz  
%
EFF  
V
= 1.0V, See Figure 4  
87.5  
OUT  
dc2052af  
1
1234567...14

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