LTC2980
TYPICAL APPLICATION
12V
3.3V
48V
IN
OUT
3.3V
REGULATOR
INTERMEDIATE
BUS
CONVERTER
0.1µF
0.1µF
0.1µF
0.1µF
0.1µF
0.1µF
EN
V
V
OUT
V
V
IN
IN
OUT
V
V
V
DACP0
DACP0
DC/DC
CONVERTER
V
DC/DC
CONVERTER
SENSEP0
SENSEP0
V
FB
V
FB
LOAD
LOAD
V
V
V
SENSEM0
DACM0
SENSEM0
RUN/SS
SGND
GND
V
SGND RUN/SS
GND
DACM0
V
V
OUT_EN0
OUT_EN0
V
V
V
V
V
V
DACP1
DACP1
V
SENSEP1
SENSEM1
DACM1
SENSEP1
SENSEM1
DC/DC
CONVERTER
DC/DC
CONVERTER
V
V
DACM1
V
OUT_EN1
OUT_EN1
V
V
V
V
V
V
DACP2
DACP2
V
SENSEP2
SENSEM2
DACM2
SENSEP2
DC/DC
CONVERTER
DC/DC
CONVERTER
LTC2980
DEVICE A
LTC2980
DEVICE B
V
SENSEM2
V
DACM2
V
OUT_EN2
OUT_EN2
V
V
V
V
V
V
DACP3
DACP3
V
SENSEP3
SENSEM3
DACM3
SENSEP3
DC/DC
CONVERTER
DC/DC
CONVERTER
V
SENSEM3
V
DACM3
V
OUT_EN3
OUT_EN3
V
V
V
V
V
V
DACP4
DACP4
V
SENSEP4
SENSEM4
DACM4
SENSEP4
DC/DC
CONVERTER
DC/DC
CONVERTER
V
SENSEM4
V
DACM4
V
OUT_EN4
OUT_EN4
V
V
V
V
V
V
DACP5
DACP5
V
SENSEP5
SENSEM5
DACM5
SENSEP5
DC/DC
CONVERTER
DC/DC
CONVERTER
V
SENSEM5
V
DACM5
V
OUT_EN5
OUT_EN5
V
V
V
V
V
V
DACP6
DACP6
V
SENSEP6
SENSEM6
DACM6
SENSEP6
DC/DC
CONVERTER
DC/DC
CONVERTER
V
SENSEM6
V
DACM6
V
OUT_EN6
OUT_EN6
V
V
V
V
V
V
DACP7
DACP7
V
SENSEP7
SENSEM7
DACM7
SENSEP7
DC/DC
CONVERTER
DC/DC
CONVERTER
V
SENSEM7
V
DACM7
V
OUT_EN7
OUT_EN7
2980 F04
10k
3.3V
5.49k
3.3V
10k
TO/FROM OTHER LTC POWER SYSTEM MANAGERS AND MICROCONTROLLER
Figure 4. LTC2980 16-Channel Application Circuit with External 3.3V Chip Power
RELATED PARTS
PART NUMBER DESCRIPTION
COMMENTS
2
LTC2970
LTC2974
Dual I C Power Supply Monitor and Margining Controller 5V to 15V, 0.5% TUE 14-Bit ADC, 8-Bit DAC, Temperature Sensor
4-Channel PMBus Power System Manager
0.25% TUE 16-Bit ADC, Voltage/Current/Temperature Monitoring and
Supervision
LTC2975
4-Channel PMBus Power System Manager
0.25% TUE 16-Bit ADC, Voltage/Current/Temperature Monitoring and
Supervision, Input Current and Power, Input Energy Accumulator
LTC2977
LTM®2987
LTC3880
LTC3883
8-Channel PMBus Power System Manager
0.25% TUE 16-Bit ADC, Voltage/Temperature Monitoring and Supervision
Dual LTC2977 with Integrated Passive Components
16-Channel µModule PMBus Power System Manager
Dual Output PolyPhase Step-Down DC/DC Controller
0.5% TUE 16-Bit ADC, Voltage/Current/Temperature Monitoring and Supervision
Single Output PolyPhase Step-Down DC/DC Controller 0.5% TUE 16-Bit ADC, Voltage/Current/Temperature Monitoring and Supervision
Rev B
07/22
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ANALOG DEVICES, INC. 2015-2022
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