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LTM4676A

更新时间： 2022-10-12 13:23:47
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
138页 6976K
描述
Quad 31.25A or Single 125A μModule Regulator with Digital Power System Management

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LTM4676A 数据手册

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LTM4664A  
30V to 58V Input, Dual 30A, Single 60A µModule  
Regulator with Digital Power System Management  
FEATURES  
DESCRIPTION  
The LTM®4664A is a complete nonisolated 48V input  
high efficiency step-down µModule® regulator with dual  
30A outputs. The switching controllers, power MOSFETs,  
inductors and supporting components are included. Only  
external capacitors are needed to complete the design.  
Operating over a 30V to 58V input voltage range, the  
LTM4664A supports an output voltage of 0.5V to 1.5V at up  
to 75W. An intermediate output at 25% •V is also available.  
The LTM4664A product video is available IoNn the website.  
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Complete 48V Input to Low Voltage Dual 30A Supply  
that Can Scale to 300A, Nonisolated  
n
Dual Analog Loops with Digital Interface for  
Compensation, Control and Monitoring  
n
n
n
n
n
n
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Input Voltage Range: 30V to 58V  
Output Voltage Range: 0.5V to 1.2V at 30A/Channel  
3% Output Current Readback Accuracy (–20° to 125°C)  
87% Efficiency for 48V to 1V at 60A, 90% at 40A  
0.5% Output Voltage Accuracy Over Temperature  
400kHz PMBus-Compliant I C Serial Interface  
16mm × 16mm × 7.72mm BGA Package  
2
The LTM4664A dual 30A regulators utilize digitally pro-  
grammable analog control loops, precision data acquisition  
circuitry and EEPROM with ECC. The LTM4664A’s 2-wire  
serial interface allows the 30A outputs to be margined,  
tuned and ramped up and down at programmable slew  
rates and sequencing delay times. True input current sense,  
output currents and voltages, input and output power, tem-  
peratures, uptime and peak values are all readable for Dual  
30A Power System Management (PSM) channels.  
APPLICATIONS  
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48V Systems  
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Computer and Networking Equipment  
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Electronic Test Equipment  
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Storage Systems  
Click to view associated TechClip Videos.  
All registered trademarks and trademarks are the property of their respective owners. Protected  
by U.S. Patents including 5408150, 5481178, 5705919, 5929620, 6144194, 6177787, 6580258,  
7420359, 8163643. Licensed under U.S. Patent 7000125 and other related patents worldwide.  
TYPICAL APPLICATION  
48V to VCORE at 60A  
48V to 1V Up to 60A  
95  
PINS NOT SHOWN FOR 4:1 VOLTAGE DIVIDER:  
48V  
CER  
+
–
VOUT2_SET, OVP_TRIP, VP_SET, INSNSS2 , INSNSS2 ,  
UVS1, UVS2, HYS_PRGM1, HYS_PRGM2, TIMERS1,  
90  
85  
80  
75  
70  
INTV  
CER  
CBULK  
CCS1  
+
–
C
C
FLY1  
FLY2  
TIMERS2, INSNSS1 , INSNSS1 , FAULTS1, FAULTS2  
10k  
PINS NOT SHOWN FOR 2-PHASE 60A SECTION:  
ON/OFF  
VOUTC0_CFG, VTRIMC0_CFG, VOUTC1_CFG, VTRIMC1_CFG,  
FSWPH_CFG, TSNSC0a, TSNSC0b, TSNSC1a, TSNSC1b,  
PWM_C0, PWM_C1, GL_C0, GL_C1, PHFLT_C0, PHFLT_C1,  
INTV  
CC  
EXTV SHARE_CLK, SCL, SDA, ALERT, SYNC  
CC,  
10k  
PGOODVCORE  
V
PGOOD_C0  
OUT2  
V
OUT2  
CER  
C
SWC0  
BULK  
FREQS1  
48V , 1.0V  
IN  
EFFICIENCY  
OUT  
VCORE 60A  
R
FREQS1  
V
OUTC0  
0
10  
20  
30  
40  
50  
60  
FREQS2  
OUTPUT CURRENT (A)  
C
OUT3  
R
GND  
FREQS2  
4664A TA01c  
SGND_C0_C1  
INTV  
CCS1  
+
V
_C0  
_C0  
OSNS  
4.7µF  
–
V
OSNS  
EXTV  
LTM4664A  
CCS1  
V
OUT2  
PGOOD_C1  
PGOODVCORE  
EXTV  
CCS2  
1µF  
LOAD  
SWC1  
V
OUTC1  
INTV  
CCS2  
4.7µF  
+
C
OUT4  
IN  
LTM4664A  
GND  
V
OUT2  
CER  
IN  
SGND_C0_C1  
V
OUTC0  
V
_
INS3 C0  
0.5V TO 1.2V/30A  
+
DUAL  
PSM  
BUCK  
V /4  
IN  
V
_C1  
_C1  
OSNS  
V
_
INS3 C1  
48V  
IN  
4:1 DIVIDER  
V
V
DD33  
OUTC1  
–
V
OSNS  
V
0.5V TO 1.2V/30A  
DD33  
10k  
V
V
/2  
V
OUT2  
OUT1  
IN  
PGOODS2  
4664A TA01b  
PGOODS2  
4664A TA01a  
INTV  
CC  
4.7µF  
PMBus  
R
SEL  
V
DD25  
COMPH1  
COMPH0  
Rev. 0  
1
Document Feedback  
For more information www.analog.com  
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