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LTM4676A Folha de dados(PDF) 75 Page - Linear Technology

Nome de Peças LTM4676A
Descrição Electrónicos  Dual 13A or Single 26A 關Module Regulator with Digital Power System Management
Download  136 Pages
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Fabricante Electrônico  LINER [Linear Technology]
Página de início  http://www.linear.com
Logo LINER - Linear Technology

LTM4676A Folha de dados(HTML) 75 Page - Linear Technology

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LTM4676A
75
4676afa
For more information www.linear.com/LTM4676A
Typical applicaTions
CINH
22µF
×3
CINL
220µF
10k
×7
VIN
4.5V to 5.75V
PWM CLOCK SYNCH.
TIME BASE SYNCH.
• SLAVE ADDRESS = 1001010_R/W (0X4A)
• 350kHz SWITCHING FREQUENCY
• NO GUI CONFIGURATION AND
NO PART-SPECIFIC PROGRAMMING REQUIRED EXCEPT:
VIN_OFF < VIN_UV_WARN_LIMIT < VIN_ON < 4.3V
IN MULTI-MODULE SYSTEMS, CONFIGURING RAIL_ADDRESS
IS RECOMMENDED
• SETTING MFR_PWM_CONFIG[7] = 1b CONFIGURES THE VOUT1
CONTROL LOOP TO USE THE VOSNS0+/VOSNS0– DIFFERENTIAL-SENSE
PIN-PAIR AS THE FEEDBACK SIGNAL FOR REGULATING VOUT1.
COUT
100µF
×14
VOUT, 1.5V
ADJUSTABLE
UP TO 26A
VIN0
VIN1
SVIN
VDD33
LOAD
SCL
SDA
ALERT
RUN0
RUN1
GPIO0
GPIO1
SYNC
SHARE_CLK
WP
10.7k
1%
±50ppm/°C
22.6k
1%
±50ppm/°C
LTM4676A
4676A F35
+
2.1k
1%
±50ppm/°C
SMBus INTERFACE WITH
PMBus COMMAND SET
ON/OFF CONTROL, FAULT
MANAGEMENT, POWER
SEQUENCING
VOUT0
TSNS0a
TSNS0b
ISNS0a+
ISNS0b+
ISNS0a–
ISNS0b–
VORB0+
VOSNS0+
VOSNS0–
VORB0
VORB1
VOUT1
TSNS1a
TSNS1b
ISNS1a+
ISNS1b+
ISNS1a–
ISNS1b–
VOSNS1
SGND
Figure 35. 26A, 1.5V Output DC/DC µModule Regulator with I2C/SMBus/PMBus Serial Interface
(36a) 5VIN, Figure 35 Circuit
(36b) 12VIN, Figure 35 Circuit with INTVCC
Open and VOUT Commanded to 1V
TOTAL OUTPUT CURRENT (A)
0
12
12
4676A F36a
6
2
4
8
16
0
–2
14
10
IOUT0
IOUT1
8
4
20
24
28
TOTAL OUTPUT CURRENT (A)
0
12
12
4676A F36b
6
2
4
8
16
0
–2
14
10
IOUT0
IOUT1
8
4
20
24
28
Figure 36. Current Sharing Performance of the LTM4676A's Channels


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