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LTM4646IY

更新时间： 2024-09-24 19:48:03
品牌 Logo 应用领域
凌特 - Linear 开关
页数 文件大小 规格书
34页 555K
描述
LTM4646 - Dual 10A or Single 20A µModule Regulator; Package: BGA; Pins: 88; Temperature Range: -40°C to 85°C

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中文翻译

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LTM4646IY 技术参数

是否Rohs认证： 不符合生命周期：Transferred
零件包装代码：BGA包装说明：,
针数：88Reach Compliance Code：compliant
风险等级：8.7模拟集成电路 - 其他类型：DUAL SWITCHING CONTROLLER
JESD-609代码：e0端子面层：Tin/Lead (Sn/Pb)
Base Number Matches：1

LTM4646IY 数据手册

 浏览型号LTM4646IY的Datasheet PDF文件第2页浏览型号LTM4646IY的Datasheet PDF文件第3页浏览型号LTM4646IY的Datasheet PDF文件第4页浏览型号LTM4646IY的Datasheet PDF文件第5页浏览型号LTM4646IY的Datasheet PDF文件第6页浏览型号LTM4646IY的Datasheet PDF文件第7页 
LTM4646  
Dual 10A or  
Single 20A µModule Regulator  
FEATURES  
DESCRIPTION  
®
The LTM 4646 is a complete dual 10A output switching  
n
Dual 10A or Single 20A Output  
n
Wide Input Voltage Range: 4.5V to 20V  
mode DC/DC power supply. Included in the package are  
the switching controller, power FETs, inductors, and all  
supporting components. Operating from an input voltage  
range of 4.5V to 20V, the LTM4646 supports two outputs  
each with an output voltage range of 0.6V to 5.5V, set by  
external resistors. Its high efficiency design delivers up to  
10A continuous current for each output. Only a few input  
and output capacitors are needed.  
n
2.375V  
with CPWR Bias  
MIN  
n
n
n
n
n
n
n
n
n
n
n
n
n
n
Output Voltage Range: 0.6V to 5.5V  
1.5ꢀ Maꢁiꢂuꢂ ꢃotal DC Output Error  
Multiphase Current Sharing  
Differential Remote Sense Amplifier, Each Channel  
Current Mode Control/Fast Transient Response  
Up to 96% Efficiency  
Adjustable Switching Frequency (250kHz to 1.3MHz)  
Frequency Synchronization  
The device supports frequency synchronization, multiphase  
operation, high efficiency light load operation and output  
voltage tracking for supply rail sequencing and has an  
onboard temperature diode per channel for device tempera-  
ture monitoring. High switching frequency and a current  
mode architecture enable a very fast transient response to  
line and load changes without sacrificing stability.  
Overcurrent Foldback Protection  
Output Overvoltage Protection  
Internal or External Compensation  
Built-In Temperature Monitoring Diode  
SnPb or RoHS Compliant Finish  
11.25mm × 15mm × 5.01mm BGA Package  
Fault protection features include overvoltage and overcur-  
rent protection. The power module is offered in a small  
footprint 11.25mm × 15mm × 5.01mm BGA package.  
The LTM4646 is available with SnPb or RoHS compliant  
terminal finish.  
APPLICATIONS  
n
Point-of-Load Power Supplies  
n
Telecom and Networking Equipment  
n
Industrial Equipment  
All registered trademarks and trademarks are the property of their respective owners. Protected  
by U.S. patents, including 5481178, 5847554, 6580258, 6304066, 6476589, 6774611.  
n
Medical Equipment  
Click to view associated ꢃechClip Videos.  
Efficiency, 12V to 0.9V,  
TYPICAL APPLICATION  
1.2V at 10A Each  
V
IN  
95  
4.5V  
10μF  
TO 20V  
×4  
130k  
90  
V
RUN1  
RUN2  
V
IN1 IN2  
CPWR  
INTV  
CC  
VRNG  
MODE_PLLIN  
DRV  
CC  
85  
4.7µF  
V
OUT1  
V
OUT2  
V
0.9V  
AT 10A  
1.2V  
OUT2  
V
OUT1  
80  
AT 10A  
V
V
OUTS2  
OUTS1  
LTM4646  
V
V
FB1  
100µF  
×4  
FB2  
100μF  
×4  
75  
121k  
60.4k  
30.1k  
12V TO 1.2V EFF, 500kHz  
IN  
–
–
V
V
12V TO 0.9V EFF, 400kHz  
IN  
OUTS1  
OUTS2  
70  
COMP1A  
COMP2A  
COMP2B  
1
2
3
4
5
6
7
8
9
10  
COMP1B  
PINS NOT USED IN THIS CIRCUIT:  
PGOOD1, PGOOD2, EXTV  
OUTPUT CURRENT (A)  
TRACK/SS1  
TRACK/SS2  
4646 TA01b  
FREQ  
115k  
SGND GND  
,
CC  
0.1µF  
0.1µF  
+ – +  
TEMP1 , TEMP1 , TEMP2 , TEMP2  
–
4646 TA01a  
PHASMD, CLKOUT, SW1, SW2  
4646f  
1
For more information www.linear.com/LTM4646  
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