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Техническая Спецификация для Linear Technology LTC2977 Demo Board: Octal Power Supply Manager [Requires DC1613] DC2028A DC2028A

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LTC2977
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 
LINEAR TECHNOLOGY CORPORATION 2013
LT 0913 REV A • PRINTED IN USA
Linear Technology  Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 
●
 FAX: (408) 434-0507 
 ● 
Typical applicaTion
Figure 34. LTC2977 Application Circuit with 3.3V Chip Power
V
IN
V
OUT
R27
61
11
60
2
3
38
4
39
36
37
R37
R30
R17
R20
R10
RUN/SS
SGND
V
FB
GND
DC/DC
CONVERTER
LOAD
LOAD
V
DACP7
V
SENSEP7
V
SENSEM7
V
DACM7
V
OUT_EN7
V
DACP0
V
SENSEP0
V
SENSEM0
V
DACM0
V
OUT_EN0
V
IN
V
OUT
R26
58
10
59
64
1
R36
R16
RUN/SS
SGND
V
FB
GND
DC/DC
CONVERTER
LOAD
V
DACP6
V
SENSEP6
V
SENSEM6
LTC2977
V
DACM6
V
OUT_EN6
V
IN
V
OUT
R25
57
9
56
62
63
R35
R15
RUN/SS
SGND
V
FB
GND
DC/DC
CONVERTER
LOAD
V
DACP5
V
SENSEP5
V
SENSEM5
V
DACM5
V
OUT_EN5
V
IN
V
OUT
R24
54
8
55
52
53
R34
R14
RUN/SS
SGND
V
FB
GND
2977 F34
DC/DC
CONVERTER
LOAD
V
DACP4
V
SENSEP4
V
SENSEM4
V
DACM4
V
OUT_EN4
V
IN
RUN/SS
V
OUT
SGND
V
FB
GND
DC/DC
CONVERTER
41
5
40
42
43
V
DACP1
V
SENSEP1
V
SENSEM1
V
DACM1
V
OUT_EN1
45
6
44
46
47
R32
R22
R12
LOAD
V
DACP2
V
SENSEP2
V
SENSEM2
V
DACM2
V
OUT_EN2
V
IN
RUN/SS
V
OUT
SGND
V
FB
GND
DC/DC
CONVERTER
IN
OUT
EN
INTERMEDIATE
BUS
CONVERTER
51
7
12
10k
50
48
49
V
DACP3
V
SENSEP3
V
SENSEM3
V
DACM3
V
OUT_EN3
V
IN_EN
10k
10k
10k
5.49k
10k
10k
TO/FROM OTHER LTC2974s, LTC2977s AND MICROCONTROLLER
3.3V
3.3V
10k
10k
10k
10k
10k
23
FAUL
TB00
13
0.1µF
34
35
65
19
18
17
16
15
33
32
14
3.3V
24
FAUL
TB01
25
FAUL
TB10
26
FAUL
TB11
21
SHARE_CLK
27
SDA
28
SCL
29
ALER
TB
30
CONTROL0
31
CONTROL1
20
PWRGD
22
WDI/RESETB
DNC
REFM
REFP
GND
WP
V
DD25
V
DD33
V
DD33
V
PW
R
ASEL1
ASEL0
V
IN_SNS
0.1µF
0.1µF
relaTeD parTs
PART NUMBER DESCRIPTION
COMMENTS
Dual I
2
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
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