Linear Technology Analog Devices LTC3882-1, Техническое описание

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LTC3882-1
108
Rev A
For more information www.analog.com

ANALOG DEVICES, INC. 2015-2018
D16873-0-5/18A
www.analog.com
RELATED PARTS
TYPICAL APPLICATION
Figure 56. 1V/40A and 1.8V/30A 500kHz Converter with DrMOS Power Stage
PART NUMBER DESCRIPTION COMMENTS
LTM4676A Dual 13A or Single 26A Step-Down DC/DC µModule
Regulator with Digital Power Management
V
IN
Up to 26.5V; 0.5V ≤ V
OUT
(±0.5%) ≤ 5.4V, ±2% I
OUT
ADC Accuracy,
Fault Logging, I
2
C/PMBus Interface, 16mm
×
16mm
×
5mm, BGA
Package
LTC3887/
LTC3887-1
Dual Output PolyPhase Step-Down DC/DC Controller with
Digital Power System Management
V
IN
Up to 24V, 0.5V ≤ V
OUT0,1
≤ 5.5V, I
2
C/PMBus Interface, with
EEPROM and 16-Bit ADC. –1 Version Operates with DrMOS and Power
Blocks
LTC3886 60V Dual Output Step-Down Controller with Digital Power
System Management
V
IN
Up to 60V, 0.5V ≤ V
OUT
≤ 13.8V, Analog Control Loop, I
2
C/
PMBus Interface with EEPROM and 16-Bit ADC, Programmable Loop
Compensation
LTC3880/
LTC3880-1
Dual Output PolyPhase Step-Down DC/DC Controller with
Digital Power System Management
V
IN
Up to 24V, 0.5V ≤ V
OUT
≤ 5.5V, Analog Control Loop, I
2
C/PMBus
Interface with EEPROM and 16-Bit ADC
LTC3883/
LTC3883-1
Single Phase Step-Down DC/DC Controller with Digital Power
System Management
V
IN
Up to 24V, 0.5V ≤ V
OUT
≤ 5.5V, Input Current Sense Amplifier, I
2
C/
PMBus Interface with EEPROM and 16-Bit ADC
LTC2977 8-Channel PMBus Power System Manager Featuring
Accurate Output Voltage Measurement
Fault Logging to Internal EEPROM Monitors Eight Output Voltages, Input
Voltage and Die Temperature
LTC2974 Quad Digital Power Supply Manager with EEPROM Controls and Monitors Four Outputs, 16-Bit ADC, Differential Inputs,
with Fault Logging
LTC3774 Dual, Multiphase Current Mode Synchronous Controller for
Sub-Milliohm DCR Sensing, with Remote Sense
Operates with Power Blocks, DrMOS Devices or External MOSFETs 4.5V
≤ V
IN
≤ 38V
LTC3861 Dual, Multiphase, Synchronous Step-Down DC/DC Controller
with Accurate Current Share
Operates with Power Blocks, DrMOS Devices or External MOSFETs 3V≤
V
IN
≤ 24V
LTC4449 High Speed Synchronous N-Channel MOSFET Driver V
IN
Up to 38V, 4V ≤ V
CC
≤ 6.5V, Adaptive Shoot-Through Protection,
2mm
×
3mm DFN-8 Package
LTC3882-1
SCL
RUN1
RUN0 RUN
I
SENSE0
+
I
SENSE0
–
V
SENSE0
+
V
SENSE0
–
4.99k
FAULT0
FAULT1
SHARE_CLK
SYNC
FB0
COMP0
TSNS0
7.32k
100pF
TSNS1
GND
38821 F56
I
AVG_GND
PWM0
PGOOD0
V
SENSE1
+
V
SENSE1
–
I
SENSE1
–
I
SENSE1
+
PWM1
PGOOD1
41 5
27
26
31
32
33
34
29
28
3
2
1
40
35
36
37
38
6
7
30
39
21
20
19
18
17
16
23
8
15
14
13
12
11
10
9
FB1
4.99k
10k
10k 10k
SDA
ALERT
220pF
137Ω
10nF
COMP1
4.7µF
V
CC
25
1µF
V
DD25
V
DD25
22
2.2µF
V
DD33
V
CC
V
DD25
V
DD33
V
DD33
24
100nF
330µF
×
2
VINSNS
4
1Ω
V
OUT0_CFG
ASEL1
ASEL0
V
OUT1_CFG
FREQ_CFG
PHAS_CFG
I
AVG1
I
AVG0
4.99k
17.4k 16.2k
10k
V
IN
7V TO 14V
+
10nF
PLACE Q1,Q2 NEAR L1, L2 RESPECTIVELY
Q1
10nF
Q2
1.21k
0.22µF
L1
0.22µH
PULSE
1.21k
0.22µF
L2
0.22µH
PULSE
100µF
×
4
470µF
×
4
V
OUT1
1V, 40A
GND
+
100µF
×
4
470µF
×
4
V
OUT0
1.8V, 30A
GND
+
FDMF6820A
V
IN
PHASE GH CGND GND BOOT V
DRV
V
CIN
5V
BIAS
SMOD
PGND
CGND
GL
V
SWH
V
IN
PWM
DISB
PWM0
100k
7.32k
100pF
220pF
137Ω
10nF
PWM1
1µF
PWM1
RUN
2.2µF
2k 10Ω
22µF
×
2
1µF
FDMF6820A
V
IN
PHASE GH CGND GND BOOT V
DRV
V
CIN
5V
BIAS
SMOD
PGND
CGND
GL
V
SWH
V
IN
PWM
DISB
1µF
PWM0
RUN
2.2µF
2k 10Ω
22µF
×
2
1µF
DrMOS: FAIRCHILD FD6802A
INPUT 5V TO +12V
+5V INPUT SUPPLY
V
DD33
100k