LTC3870EUFD [Linear]
60V Dual Output Step-Down DC/DC Controller with Digital Power System Management;
| 型号： | LTC3870EUFD |
| 厂家： | 
Linear |
| 描述： | 60V Dual Output Step-Down DC/DC Controller with Digital Power System Management |
| 文件： | 总26页 (文件大小：3089K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
DEMO MANUAL
DC2155A-A/DC2155A-B
LTC3886IUKG/LTC3870EUFD
60V Dual Output Step-Down DC/DC Controller
with Digital Power System Management
DESCRIPTION
Demonstration circuit 2155A is available in two configu-
rations. The DC2155A-A is a dual output synchronous
step-down converter featuring the LTC®3886IUKG, a
dual-phase current mode controller. The DC2155A-B is
a single output synchronous step-down converter that
operates with four phases: two from the LTC3886IUKG
and two from LTC3870EUFD, a phase extender. Both ver-
sions have a PMBus interface and digital power system
management functions.
anyserialbuscommunication.Thisallowseasyevaluation
of the DC/DC converter aspects of the LTC3886. To fully
exploretheextensivepowersystemmanagementfeatures
of the parts, download the GUI software LTpowerPlay®
2
onto your PC and use LTC’s I C/SMBus/PMBus Dongle
DC1613A to connect to the board. LTpowerPlay allows
the user to reconfigure the part on the fly and store the
configuration in EEPROM, view telemetry of voltage, cur-
rent, temperature and fault status.
The DC2155A uses discrete MOSFETs in the power stage.
The input range of this board is from 18V to 54V. The
outputvoltagecanbeprogrammedfrom5Vto12Vwithan
output current of up to 12A per phase. For the DC2155A-A
version, the factory default setting for the CH0 output is
12V and CH1 output is 5V. In addition, this demo board
hasanon-boarddynamicloadcircuit, whichmakesiteasy
to evaluate the transient performances.
GUI Software Download
The software can be downloaded from:
http://www.linear.com/ltpowerplay
For more details and instructions of LTpowerPlay, please
refer to “LTpowerPlay for LTC3880 Quick Start Guide”.
Design files for this circuit board are available at
http://www.linear.com/demo/DC2155A
L, LT, LTC, LTM, Linear Technology, the Linear logo and LTpowerPlay are registered
trademarks of Linear Technology Corporation. All other trademarks are the property of their
respective owners.
The DC2155A powers up to default settings and produces
power based on configuration resistors or its program file
loaded within its onboard EEPROM without the need for
PERFORMANCE SUMMARY Specifications are at TA = 25°C
DC2155A-A Assembly (Dual Output, LTC3886 Only)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
32
MAX
UNITS
V
Input Supply Range
18
54
V
kHz
V
IN
FSW
Factory Default Switching Frequency
CH0 Factory Default Output Voltage
CH0 Output Current Range
CH0 Efficiency
150
12
V
I
= 0A to 12A, V = 18V to 54V
OUT0 IN
OUT0
OUT0
I
0
0
12
12
A
EFF
V
= 12V, V = 32V, I = 12A, See Figure 6a
OUT
96.3
5
%
V
OUT0
IN
V
CH1 Factory Default Output Voltage
CH1 Output Current Range
CH1 Efficiency
I
= 0A to 12A, V = 18V to 54V
IN
OUT1
OUT1
OUT1
I
A
EFF
V
= 5V, V = 32V, I = 12A, See Figure 6b
OUT
93.6
%
OUT1
IN
dc2155afb
1
DEMO MANUAL
DC2155A-A/DC2155A-B
PERFORMANCE SUMMARY
Specifications are at TA = 25°C
DC2155A-B Assembly (Four-Phase Single Output, LTC3886 and LTC3870)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
32
MAX
UNITS
V
V
Input Supply Range
18
54
V
V
IN
Factory Default Output Voltage
Output Current Range
Factory Default Switching Frequency
Efficiency
I
= 0A TO 48A, V = 18V to 54V
12
OUT0
OUT0
OUT
IN
I
0
48
A
FSW
EFF
150
kHz
%
V
IN
= 32V, V
= 12V, I = 48A, See Figure 7
OUT
96.6
OUT
QUICK START PROCEDURE
Demonstration circuit 2155A makes it easy to set up
to evaluate the performances of the LTC3886. Refer to
Figures 1 and 2 for proper measurement equipment setup
and follow the procedure below:
3. Make sure both RUN switches (SW1, SW2) are OFF.
4. Turn on the power at the input.
NOTE. Make sure that the input voltage does not
exceed 54V.
NOTE. When measuring the input or output voltage ripple,
care must be taken to avoid a long ground lead on the
oscilloscope probe. Measure the output voltage ripple by
touching the probe tip directly across the C10 for CH0
and C26 for CH1. See Figure 5 for proper scope probe
technique.
5. Turn on both SW1 (for RUN0), and SW2 (for RUN1)
switches, as desired.
6. Check for the correct output voltage from E5 to E6
for CH0, E7 to E8 for CH1. For DC2155A–A version,
V
= 12.0V 0.5% (11.94V ~ 12.06V), V
= 5V
OUT0
OUT1
0.5% (4.975V ~ 5.025V). For DC2155A–B version,
= 12.0V 0.5% (11.94V ~ 12.06V).
1. Make sure jumpers are in the following positions:
V
OUT0
JUMPER POSITION
FUNCTION
NOTE. If there is no output, temporarily disconnect the
load to make sure that the load is not set too high.
JP1
JP2
JP3
JP5
JP6
ON
EXT 5V (on-board bias supply) for
EXTV and dynamic load circuit
CC
NC for DC2155A-A; FAULT0 to FAULT1
C for DC2155A-B
7. Once the proper output voltage is established, adjust
the loads within the operating range and observe the
output voltage regulation, ripple voltage, efficiency and
other parameters.
NC for DC2155A-A; RUN0 to RUN1
C for DC2155A-B
INT
External or on-board pulse generator
for transient circuit
8. Connectthedongleandcontroltheoutputvoltagefrom
the GUI. See “LTpowerPlay QUICK START” session for
details.
OFF
On-board pulse generator ON/OFF
2. With power off, connect the input power supply to V
and GND. Connect active load to output.
IN
dc2155afb
2
DEMO MANUAL
DC2155A-A/DC2155A-B
QUICK START PROCEDURE
–
+
V
OUT0
12A MAX
SHUNT
LOAD
RUN0
SWITCH 1
+
–
+
–
DC1613A
CONNECTOR
+
–
1mΩ SHUNT
+
POWER
SUPPLY
–
–
+
DC2155 F01
RUN1
SWITCH 2
+
–
V
OUT1
12A MAX
SHUNT
LOAD
Figure 1. Test Setup for DC2155A-A
dc2155afb
3
DEMO MANUAL
DC2155A-A/DC2155A-B
QUICK START PROCEDURE
–
+
V
OUT0
36A MAX
SHUNT
LOAD
RUN0
SWITCH 1
+
–
+
–
DC1613A
CONNECTOR
+
–
1mΩ SHUNT
+
POWER
SUPPLY
–
DC2155 F01
RUN1
SWITCH 2
+
–
V
OUT1
12A MAX
SHUNT
LOAD
Figure 2. Test Setup for DC2155A-B
dc2155afb
4
DEMO MANUAL
DC2155A-A/DC2155A-B
QUICK START PROCEDURE
Connecting a PC to DC2155A
ing parameters, the fault log, fault responses, GPIO and
other functionality. The DC1613A dongle may be plugged
You can use a PC to reconfigure the power management
in regardless of whether or not V is present. Dongle can
IN
features of the LTC3886 such as: nominal V , margin
OUT
be hot plugged.
setpoints,OV/UVlimits,temperaturefaultlimits,sequenc-
+48V
POWER SUPPLY
USB CABLE
12-PIN
VOUT0
LOAD
CONNECTOR
USB TO
I2C/PMBus DONGLE
DC1613A
LTC3886
DEMO BOARD
VOUT1
DC2155A-A
LOAD
Figure 3. Demo Setup with PC for DC2155A-A
+48V
POWER SUPPLY
USB CABLE
12-PIN
CONNECTOR
VOUT0
USB TO
I2C/PMBus DONGLE
DC1613A
LTC3886
DEMO BOARD
DC2155A-B
LOAD
Figure 4. Demo Setup with PC for DC2155A-B
dc2155afb
5
DEMO MANUAL
DC2155A-A/DC2155A-B
QUICK START PROCEDURE
Measuring Efficiency
n
DC2155A-B version. Measure V across the input
IN
ceramic capacitor C7. Measure V
ceramic capacitor C10.
across the output
OUT
To accurately measure efficiency of any configuration, do
the following:
n
Set JP6 to OFF position to disable the pulse generator Measuring Output Ripple Voltage
circuits.
An accurate ripple measurement may be performed by
n
DC2155A-A version. Measure V across the input using the below configuration across C10/C26.
IN
ceramic capacitor (C7 for CH0, C21 for CH1). Measure
V
acrosstheoutputceramiccapacitor(C10forCH0,
OUT
C26 for CH1).
+
–
C
OUT
V
GND
OUT
Figure 5. Measuring Output Voltage Ripple
100
98
96
94
92
90
88
86
84
82
80
100
98
96
94
92
90
88
86
18V
18V
24V
32V
48V
IN
IN
IN
IN
IN
IN
IN
IN
84
82
80
24V
32V
48V
0
1
2
3
4
5
6
7
8
9
10 11 12
0
1
2
3
4
5
6
7
8
9
10 11 12
LOAD CURRENT (A)
LOAD CURRENT (A)
I
f
= 0A to 12A
I
f
= 0A to 12A
LOAD
SW
LOAD
= 150kHz
= 150kHz
SW
EXTV = 12V (TIED TO V
CC
)
EXTV = 5V (TIED TO V
)
OUT
OUT
CC
ONE OUTPUT RAIL IS
ENABLED AT A TIME.
ONE OUTPUT RAIL IS
ENABLED AT A TIME.
DC2155 F06a
DC2155 F06b
Figure 6a. DC2155A-A: Efficiency at 12VOUT
Figure 6b. DC2155A-A: Efficiency at 5VOUT
dc2155afb
6
DEMO MANUAL
DC2155A-A/DC2155A-B
QUICK START PROCEDURE
100
98
96
94
92
90
88
86
84
82
80
18V
24V
32V
48V
IN
IN
IN
IN
0
4
8
12 16 20 24 28 32 36 40 44 48
LOAD CURRENT (A)
I
f
= 0A to 48A
LOAD
SW
= 150kHz
EXTV = 12V (TIED TO V
)
CC
OUT
4-PHASE SINGLE OUTPUT
DC2155 F07
Figure 7. DC2155A-B: Efficiency at 12VOUT
V
= 444mV
V
= 438mV
O_P-P
O_P-P
V
V
OUT
2OOmV/DIV
OUT
2OOmV/DIV
I
I
OUT
5A/DIV
OUT
OA TO 6A
OA TO 6A
5A/DIV
DC2155 F08a
DC2155 F08b
100µs/DIV
100µs/DIV
V
V
= 32V
= 12V
= 150kHz
V
V
= 32V
= 5V
= 150kHz
IN
OUT0
IN
OUT1
f
I
f
I
SW
LOAD
SW
LOAD
(DEFAULT SET-UP)
STEP = 0A TO 6A AT 6A/µs
STEP = 0A TO 6A AT 6A/µs
(DEFAULT SET-UP)
Figure 8a. DC2155A-A Load Step Response
Figure 8b. DC2155A-A Load Step Response
dc2155afb
7
DEMO MANUAL
DC2155A-A/DC2155A-B
QUICK START PROCEDURE
20MHz BWL
= 53mV
V
O_P-P
12V
OUT
5OmV/DIV
AC-COUPLING
5V
OUT
5OmV/DIV
AC-COUPLING
V
= 31mV
O_P-P
DC2155 F09
10µs/DIV
V
V
V
= 32V
IN
= 12V AT 12A
= 5V AT 12A
OUT0
OUT1
f
= 150kHz
SW
(DEFAULT SET-UP)
Figure 9. DC2155A-A Output Ripple Voltages
DC2155 F10
TOP VIEW
BOTTOM VIEW
V
V
V
= 32V
EXTV = 12V (TIED TO V
)
IN
CC
OUT
= 12V AT 12A
= 5V AT 12A
T = 25°C
A
OUT0
OUT1
NO FORCED AIRFLOW
(DEFAULT SET-UP)
f
= 150kHz
SW
Figure 10. DC2155A-A Thermal Performance
dc2155afb
8
DEMO MANUAL
DC2155A-A/DC2155A-B
QUICK START PROCEDURE
20MHz BWL
= 388mV
20MHz BWL
O_P-P
V
O_P-P
V
= 17.5mV
12V
12V
OUT
OUT
2OOmV/DIV
2OmV/DIV
AC-COUPLING
AC-COUPLING
OA TO 24A
I
OUT
2OA/DIV
DC2155 F11
DC2155 F12
100µs/DIV
10µs/DIV
V
V
= 32V
OUT0
= 150kHz
V
V
= 32V
OUT0
= 150kHz
IN
IN
= V
= 12V
= V = 12V AT 48A
OUT1
OUT1
f
I
f
SW
LOAD
SW
(DEFAULT SET-UP)
STEP = 0A TO 24A AT 24A/µs (DEFAULT SET-UP)
Figure 11. DC2155A-B Load Step Response VIN = 32V
Figure 12. DC2155A-B Output Ripple Voltages
DC2155 F13
TOP VIEW
BOTTOM VIEW
V
V
SW
= 32V
OUT0
= 150kHz
LTC3870 EXTV = 5V (TIED TO 5V ON-BOARD
CC
IN
= V
= 12V AT 48A
OUT1
EXTERNAL BIAS SUPPLY VOLTAGE FROM U3)
f
T = 25°C
A
LTC3886 EXTV = 12V (TIED TO V
)
NO FORCED AIRFLOW
(DEFAULT SET-UP)
CC
OUT0
Figure 13. DC2155A-B Thermal Performance
dc2155afb
9
DEMO MANUAL
DC2155A-A/DC2155A-B
LTpowerPlay SOFTWARE GUI
LTpowerPlay is a powerful Windows based development issues when bringing up rails. LTpowerPlay utilizes the
environment that supports Linear Technology power sys- DC1613A USB-to-SMBus controller to communicate with
tem management ICs, including the LTC3880, LTC3883, one of many potential targets, including the LTC3886’s
LTC3882, LTC3887 and LTC3886. The software supports DC2155A demo system, or a customer board. The soft-
a variety of different tasks. You can use LTpowerPlay to ware also provides an automatic update feature to keep
evaluate Linear Technology ICs by connecting to a demo the software current with the latest set of device drivers
board system. LTpowerPlay can also be used in an offline and documentation. The LTpowerPlay software can be
mode (with no hardware present) in order to build a mul- downloaded from:
tichipconfigurationfilethatcanbesavedandreloadedata
latertime.LTpowerPlayprovidesunprecedenteddiagnostic
http://www.linear.com/ltpowerplay
To access technical support documents for LTC Digital
Power Products visit Help. View online help on the LT-
powerPlay menu.
and debug features. It becomes a valuable diagnostic tool
during board bring-up to program or tweak the power
management scheme in a system, or to diagnose power
Figure 14. LTpowerPlay Main Interface
dc2155afb
10
DEMO MANUAL
DC2155A-A/DC2155A-B
LTpowerPlay QUICK START PROCEDURE
ThefollowingproceduredescribeshowtouseLTpowerPlay d. If you want to change the output voltage to a differ-
to monitor and change the settings of LTC3886.
1. Download and install the LTpowerPlay GUI:
http://www.linear.com/ltpowerplay
ent value, like 10V: in the Config tab, type in 10 in the
VOUT_COMMAND box, like this:
2. Launch the LTpowerPlay GUI.
a. The GUI should automatically identify the DC2155A.
The system tree on the left hand side should look like
this:
b. A blue message box shows for a few seconds in the
lower left hand corner, confirming that the LTC3886
is communicating:
Then, click the “W” (PC to RAM) icon to write these
registervaluestotheLTC3886.Afterfinishingthisstep,
you will see the output voltage will change to 10V.
c. In the Toolbar, click the “R” (RAM to PC) icon to read
theRAMfromtheLTC3886.Thisreadstheconfiguration
from the RAM of LTC3886 and loads it into the GUI.
If the write is successful, you will see the following
message:
dc2155afb
11
DEMO MANUAL
DC2155A-A/DC2155A-B
LTpowerPlay QUICK START PROCEDURE
e. You can save the changes into the NVM. In the tool f. Savethedemoboardconfigurationtoa(*.proj)file.Click
bar, click “RAM to NVM” button, as following:
the Save icon and save the file with a new file name.
DC2155A-A
PARTS LIST
ITEM QTY REFERENCE
PART DESCRIPTION
MANUFACTURER/PART NUMBER
DC2155A-A Required Circuit Components
1
2
3
4
1
5
8
2
4
2
2
2
1
1
2
1
1
1
2
1
2
2
2
2
1
1
2
4
1
2
1
C1, C85
CAP, 56µF 20% 63V ELEC
SUNCON 63HVP56M
2
C3, C9, C23
C4, C5, C27, C33
C6
CAP, 0603 0.1µF 10% 100V X7R
CAP, 0603 10nF 10% 100V X7R
CAP, 0603 1nF 10% 100V X7R
CAP, 1210 2.2µF 10% 100V X7R
MURATA GRM188R72A104KA35D
MURATA GRM188R72A103KA01D
AVX 06031C102KAT2A
3
4
5
C7, C8, C21, C22, C74
MURATA GRM32ER72A225KA35L
AVX 1210YC226MAT2A
6
C10, C11, C12, C24, C25, C26, C88, C93 CAP, 1210 22µF 20% 16V X7R
7
C13, C28
C14, C15, C29, C30
C18, C34
C20, C36
C37, C38
C39
CAP, 0603 1nF 10% 16V X7R
CAP, 150µF 16V ELEC. OS-CON
CAP, 0603 4.7nF 10% 50V X7R
CAP, 0603 100pF 5% 50V C0G
CAP, 0603 2.2µF 10% 16V X5R
CAP, 0603 4.7µF 10% 10V X5R
CAP, 0603 4.7µF 10% 16V X5R
CAP, 0805 2.2µF 10% 16V X7R
CAP, 0603 47nF 10% 25V X7R
CAP, 0603 0.1µF 10% 25V X7R
CAP, 0805 220nF 10% 100V X7R
CAP, 1210 100µF 20% 10V X5R
CAP, 0603 220pF 10% 50V X7R
CAP, 0603 10nF 10% 25V X7R
CAP, 0603 100nF 20% 16V X7R
CAP, 1812 10µF 20% 100V X7S
CAP, 1206 2.2µF 10% 100V X7R
CAP, 0603 150pF 5% 50V NPO
CAP, 0603 1µF 20% 25V X5R
DIODE, SCHOTTKY 100V, 1A
LED, 0603 GREEN
AVX 0603YC102KAT2A
8
PANASONIC 16SVP150M
AVX 06035C472KAT2A
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
AVX 06035A101JAT2A
AVX 0603YD225KAT2A
AVX 0603ZD475KAT2A
C40
MURATA GRM188R61C475KAAJD
AVX 0805YC225KAT2A
C70, C103
C72
AVX 06033C473KAT2A
C76
AVX 06033C104KAT2A
C78
MURATA GRM21AR72A224KAC5L
MURATA GRM32ER61A107ME20L
AVX 06035C221KAT2A
C79, C80
C81
C82, C83
C84, C101
C94, C95
C96, C97
C100
AVX 06033C103KAT2A
AVX 0603YC104MAT2A
TDK CKG45NX7S2A106M500JH
MURATA GRM31CR72A225KA73L
AVX 06035A151JAT2A
C102
AVX 06033D105MAT2A
D1, D2
DIODES/ZETEX, DFLS1100-7
OSRAM LG L29K-G2J1-24-Z
OSRAM LS L29K-H1J2-1-Z
WURTH ELEKTRONIK 7443630860
SUMIDA CDRH105RNP-680NC
D5, D6, D13, D14
D7
LED, 0603 RED
L1, L2
IND, 8.6µH
L5
IND, 68µH
dc2155afb
12
DEMO MANUAL
DC2155A-A/DC2155A-B
DC2155A-A
PARTS LIST
ITEM QTY REFERENCE
PART DESCRIPTION
MANUFACTURER/PART NUMBER
31
32
33
34
35
36
37
38
39
40
2
2
2
1
1
4
2
2
4
Q1, Q6
XSTR, MOSFET N-CH 60V 25A 5 PIN LFPAK
XSTR, MOSFET N-CH 60V 45A 5 PIN LFPAK
XSTR, PNP GENERAL PURPOSE SOT-323
XSTR, MOSFET N-CH 30V 30A 5 PIN LFPAK
XSTR, MOSFET P-CH 20V 5.2A SOT-23
XSTR, MOSFET N-CH 60V 115mA SOT-23
RES, 2512 0.006Ω 1% 1W
RENESAS RJK0651DPB
Q3, Q7
RENESAS RJK0653DPB
Q9, Q10
DIODES INC. MMST3906-7-F
RENESAS RJK0305DPB-00#J0
VISHAY Si2365EDS-T1-GE3
FAIRCHILD 2N7002A
Q19
Q20
Q22, Q23, Q28, Q29
R2, R122
R3, R4
PANASONIC ERJ-M1WSF6MU
VISHAY CRCW06031K00JNEA
VISHAY CRCW06032R00JNEA
VISHAY CRCW060310K0JNEA
RES, 0603 1k 5% 1/10W
R9, R12, R30, R38
RES, 0603 2Ω 5% 1/10W
12 R10, R11, R13, R15, R16, R18, R23,
R25, R28, R89, R112, R113
RES, 0603 10k 5% 1/10W
41
42
2
3
R14, R37
RES, 2010 3mΩ 1% 1/2W
RES, 0603 0Ω JUMPER
VISHAY WSL20103L000FEA
VISHAY CRCW06030000Z0EA
R17, R21, R22, R27, R43, R44, R45,
R96, R98, R106, R109, R128, R129,
R132, R168, R174
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
5
4
1
1
1
2
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
R24, R26, R50, R51, R155
RES, 0603 100Ω 5% 1/10W
RES, 0603 200Ω 5% 1/10W
RES, 2010 0.01Ω 1% 1/2W
RES, 0603 127Ω 1% 1/10W
RES, 0603 220k 5% 1/10W
RES, 0603 10Ω 5% 1/10W
RES, 0603 4.99k 1% 1/10W
RES, 2512 0Ω JUMPER
VISHAY CRCW0603100RJNEA
VISHAY CRCW0603200RJNEA
VISHAY WSL2010R0100FEA
VISHAY CRCW0603127RFKEA
VISHAY CRCW0603220KJNEA
VISHAY CRCW060310R0JNEA
VISHAY CRCW06034K99FKEA
VISHAY CRCW25120000Z0EG
VISHAY CRCW08054R70FKEA
VISHAY CRCW06031M00JNEA
VISHAY CRCW0603681KFKEA
VISHAY CRCW06033R30FKEA
VISHAY CRCW060382R5FKEA
VISHAY CRCW06032R00JNEA
VISHAY CRCW060327K4FKEA
VISHAY CRCW0603226KFKEA
BOURNS 3386P-1-502-LF
R87, R88, R171, R172
R91
R93
R99
R114, R115
R119, R120
R124, R125
R146
R151
R152
R153
R154
R157
R158
R159
R160
R161
R162
R170
U1
RES, 0805 4.7Ω 1% 0.125W
RES, 0603 1M 5% 1/10W
RES, 0603 681k 1% 1/10W
RES, 0603 3.3Ω 1% 1/10W
RES, 0603 82.5Ω 1% 1/10W
RES, 0603 2Ω 5% 1/10W
RES, 0603 27.4k 1% 1/10W
RES, 0603 226k 1% 1/10W
RES, VARIABLE 5k
RES, 0603 20k 5% 1/10W
RES, 1206 0Ω JUMPER
VISHAY CRCW060320K0JNEA
VISHAY CRCW12060000Z0EA
VISHAY CRCW0603340KFKEA
RES, 0603 340Ω 1% 1/10W
IC, WIDE INPUT AND OUTPUT DC/DC CONVERTER LINEAR TECH. LTC3886IUKG#10E2-PBF-ES
U3
IC, SYNCHRONUS STEP-DOWN CONVERTER
IC, 24LC05-I/ST
LINEAR TECH. LTC3630EMSE#PBF
MICROCHIP 24LC025-I/ST
LINEAR TECH. LTC6992IS6-1
LINEAR TECH. LT1803IS5
U4
U5
IC, LTC6992
U6
IC, SINGLE OP AMP
dc2155afb
13
DEMO MANUAL
DC2155A-A/DC2155A-B
DC2155A-A
PARTS LIST
ITEM QTY REFERENCE
PART DESCRIPTION
MANUFACTURER/PART NUMBER
DC2155A-A Additional Demo Board Circuit Components
1
2
0
0
0
0
0
0
0
0
0
0
0
0
0
C16, C17, C31, C32
C19, C35, C73
C71, C77
CAP, 7343 OPTION
OPTION
CAP, 0603 OPTION
OPTION
3
CAP, 0805 OPTION
OPTION
4
C75
CAP, 1210 OPTION
OPTION
5
C86, C87
CAP, ELEC OPTION
OPTION
6
D8
DIODE, ZENER OPTION
DIODE, OPTION
OPTION
7
D9, D12
OPTION
8
L1, L2
IND, 6.8µH OPTION
IND, 6.8µH OPTION
XSTR, OPTION
COILCRAFT SER2195H-682KL OPTION
9
L1, L2 - ALTERNATE
Q2, Q4, Q5, Q8
Q27
COILCRAFT SER2918H-682KL OPTION
10
11
12
13
OPTION
XSTR, N-CHANNEL DMOS FET OPTION
RES, 2512 0Ω JUMPER OPTION
RES, 0603 OPTION
OPTION
R5, R6, R7, R8
RN5326 2512 TEPRO NAKOMA OPTION
OPTION
R19, R20, R29, R31, R32, R33, R34,
R35, R36, R39, R40, R41, R42, R46,
R47, R48, R49, R97, R100, R101,
R102, R103, R104, R105, R108, R110,
R111, R116, R117, R118, R121, R144,
R145, R147, R148, R169, R173
14
15
16
0
0
0
R90, R92
R107
RES, 0805 OPTION
OPTION
RES, 1206 OPTION
OPTION
R163
RES, 1206 0Ω JUMPER OPTION
VISHAY CRCW12060000Z0EA OPTION
DC2155A-A Hardware: For Demo Board Only
1
25 E1, E2, E3, E4, E5, E6, E7, E8, E11, E12, TURRET
MILL-MAX 2501-2-00-80-00-00-07-0
E14, E16, E18, E20, E21, E22, E23, E24,
E25, E26, E27, E29, E30, E32, E35, E36
2
3
5
6
JP1, JP2, JP3, JP5, JP6
HEADER, 3 PIN 2mm
SULLINS NRPN031PAEN-RC
PEM KFH-032-10
J1, J2, J3, J4, J5, J6
STUD, TESTPIN
4
2
J7, J12
J9
CONN, BNC, 5 PINS
CONNEX 112404
5
1
HEADER, 14PIN DUAL ROW R/A
CONN, SOCKET 14PIN DUAL ROW R/A
HEADER, 12PIN 2mm STR DL
LUG RING, #10
MOLEX 87760-1416
SULLINSINC. NPPN072FJFN-RC
FCI 98414-G06-12ULF
KEYSTONE 8205
6
1
J10
7
1
J11
8
10
4
9
MH1, MH2, MH3, MH4
SW1, SW2
STANDOFF, SNAP ON
KEYSTONE_8831
10
11
12
13
20
2
NUT, BRASS 10-32
ANY #10-32
SWITCH, SUBMINATURE SLIDE
WASHER, #10 TIN PLATED BRASS
SHUNT
C&K JS202011CQN
ANY #10 EXT BZ TN
SAMTEC 2SN-BK-G
10
5
XJP1, XJP2, XJP3, XJP5, XJP6
dc2155afb
14
DEMO MANUAL
DC2155A-A/DC2155A-B
DC2155A-B
PARTS LIST
ITEM QTY REFERENCE
PART DESCRIPTION
MANUFACTURER/PART NUMBER
DC2155A-B Required Circuit Components
1
2
3
4
5
2
6
2
1
9
C1, C85
CAP, 56µF 20% 63V ELEC
SUNCON 63HVP56M
C3, C9, C23, C44, C54, C60
CAP, 0603 0.1µF 10% 100V X7R
CAP, 0603 10nF 10% 100V X7R
CAP, 0603 1nF 10% 100V X7R
CAP, 1210 2.2µF 10% 100V X7R
MURATA GRM188R72A104KA35J
AVX 06031C103KAT2A
C4, C5
C6
AVX 06031C102KAT2A
C7, C8, C21, C22, C41, C42, C58, C59,
C74
MURATA GRM32ER72A225KA35L
6
16 C10, C11, C12, C24, C25, C26, C46,
C47, C48, C61, C62, C67, C88, C89,
C90, C93
CAP, 1210 22µF 20% 16V X7R
MURATA GRM32ER71C226MEA8L
7
4
8
1
2
4
2
2
2
2
2
1
1
1
2
1
2
2
4
1
1
4
4
1
4
1
4
4
2
1
1
C13, C28, C55, C68
CAP, 0603 1nF 10% 16V X7R
AVX 0603YC102KAT2A
8
C14, C15, C29, C30, C50, C52, C63, C64 CAP, 150µF 16V ELEC. OS-CON
PANASONIC 16SVP150M
AVX 06035C822KAT2A
9
C18
CAP, 0603 8.2nF 10% 50V X7R
CAP, 0603 100pF 5% 50V C0G
CAP, 0603 10nF 10% 25V X7R
CAP, 0603 2.2µF 10% 16V X5R
CAP, 0603 4.7µF 10% 10V X5R
CAP, 0603 4.7µF 10% 16V X5R
CAP, 0603 10pF 5% 50V C0G
CAP, 0805 2.2µF 10% 16V X7R
CAP, 0603 47nF 10% 25V X7R
CAP, 0603 0.1µF 10% 25V X7R
CAP, 0805 220nF 10% 100V X7R
CAP, 1210 100µF 20% 10V X5R
CAP, 0603 220pF 10% 50V X7R
CAP, 0603 100nF 20% 16V X7R
CAP, 1812 10µF 20% 100V X7S
CAP, 1206 2.2µF 10% 100V X7R
CAP, 0603 150pF 5% 50V NPO
CAP, 0603 1µF 20% 25V X5R
DIODE, SCHOTTKY 100V, 1A
LED, 0603 GREEN
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
C20, C36
C27, C33, C82, C83
C37, C38
C39, C45
C40, C43
C49, C57
C70, C103
C72
AVX 06035A101JAT2A
AVX 06033C103KAT2A
AVX 0603YD225KAT2A
AVX 0603ZD475KAT2A
MURATA GRM188R61C475KAAJD
AVX 06035A100JAT2A
AVX 0805YC225KAT2A
AVX 06033C473KAT2A
C76
AVX 06033C104KAT2A
C78
MURATA GRM21AR72A224KAC5L
TAIYO YUDEN LMK325ABJ107MM-T
AVX 06035C221KAT2A
C79, C80
C81
C84, C101
C94, C95
C96, C97, C98, C99
C100
AVX 0603YC104MAT2A
TDK CKG45NX7S2A106M500JH
MURATA GRM31CR72A225KA73L
AVX 06035A151JAT2A
C102
AVX 06033D105MAT2A
D1, D2, D3, D4
D5, D6, D13, D14
D7
DIODES/ZETEX, DFLS1100-7
OSRAM LG L29K-G2J1-24-Z
OSRAM LS L29K-H1J2-1-Z
WURTH ELEKTRONIK 7443630860
SUMIDA CDRH105RNP-680NC
RENESAS RJK0651DPB
LED, 0603 RED
L1, L2, L3, L4
L5
IND, 8.6µH
IND, 68µH
Q1, Q6, Q11, Q15
Q3, Q7, Q13, Q18
Q9, Q10
XSTR, MOSFET N-CH 60V 25A 5 PIN LFPAK
XSTR, MOSFET N-CH 60V 45A 5 PIN LFPAK
XSTR, PNP GENERAL PURPOSE SOT-323
XSTR, MOSFET N-CH 30V 30A 5 PIN LFPAK
XSTR, MOSFET P-CH 20V 5.2A SOT-23
RENESAS RJK0653DPB
DIODES INC. MMST3906-7-F
RENESAS RJK0305DPB-00#J0
VISHAY Si2365EDS-T1-GE3
Q19
Q20
dc2155afb
15
DEMO MANUAL
DC2155A-A/DC2155A-B
DC2155A-B
PARTS LIST
ITEM QTY REFERENCE
PART DESCRIPTION
MANUFACTURER/PART NUMBER
FAIRCHILD 2N7002A
37
38
39
40
41
42
4
2
2
6
7
Q22, Q23, Q28, Q29
R2, R122
XSTR, MOSFET N-CH 60V 115mA SOT-23
RES, 2512 0.003Ω 1% 1W
RES, 0603 1k 5% 1/10W
PANASONIC ERJ-M1WTF3M0U
VISHAY CRCW06031K00JNEA
VISHAY CRCW25120000Z0EG
VISHAY CRCW06032R00JNEA
VISHAY CRCW060310K0JNEA
R3, R4
R5, R6, R7, R8, R124, R125
R9, R12, R30, R38, R52, R53, R67
RES, 2512 0Ω JUMPER
RES, 0603 2Ω 5% 1/10W
12 R10, R11, R13, R15, R16, R18, R23,
R25, R28, R89, R112, R113
RES, 0603 10k 5% 1/10W
43
44
4
R14, R37, R58, R70
RES, 2010 3mΩ 1% 1/2W
RES, 0603 0Ω JUMPER
VISHAY WSL20103L000FEA
VISHAY CRCW06030000Z0EA
36 R17, R21, R22, R27, R43, R44, R45,
R56, R57, R59, R60, R61, R62, R64,
R66, R69, R73, R74, R78, R80, R81,
R96, R98, R106, R109, R118, R121,
R128, R129, R130, R131, R132, R148,
R168, R173, R174
45
9
R24, R26, R50, R51, R63, R65, R75,
R76, R155
RES, 0603 100Ω 5% 1/10W
VISHAY CRCW0603100RJNEA
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
2
4
1
1
1
2
2
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
R68, R158
RES, 0603 49.9k 1% 1/10W
RES, 0603 200Ω 5% 1/10W
RES, 2010 0.01Ω 1% 1/2W
RES, 0603 127Ω 1% 1/10W
RES, 0603 220k 5% 1/10W
RES, 0603 10Ω 5% 1/10W
RES, 0603 4.99k 1% 1/10W
RES, 0805 4.7Ω 1% 0.125W
RES, 0603 1M 5% 1/10W
RES, 0603 681k 1% 1/10W
RES, 0603 3.3Ω 1% 1/10W
RES, 0603 82.5Ω 1% 1/10W
RES, 0603 2Ω 5% 1/10W
RES, 0603 27.4k 1% 1/10W
RES, 0603 226k 1% 1/10W
RES, VARIABLE 5k
VISHAY CRCW060349K9FKEA
VISHAY CRCW0603200RJNEA
VISHAY WSL2010R0100FEA
VISHAY CRCW0603127RFKEA
VISHAY CRCW0603220KJNEA
VISHAY CRCW060310R0JNEA
VISHAY CRCW06034K99FKEA
VISHAY CRCW08054R70FKEA
VISHAY CRCW06031M00JNEA
VISHAY CRCW0603681KFKEA
VISHAY CRCW06033R30FKEA
VISHAY CRCW060382R5FKEA
VISHAY CRCW06032R00JNEA
VISHAY CRCW060327K4FKEA
VISHAY CRCW0603226KFKEA
BOURNS 3386P-1-502-LF
R87, R88, R171, R172
R91
R93
R99
R114, R115
R119, R120
R146
R151
R152
R153
R154
R157
R158
R159
R160
R161
R162, R163
R170
U1
RES, 0603 20k 5% 1/10W
RES, 1206 0Ω JUMPER
VISHAY CRCW060320K0JNEA
VISHAY CRCW12060000Z0EA
VISHAY CRCW0603340RJNEA
RES, 0603 340Ω 5% 1/10W
IC, WIDE INPUT AND OUTPUT DC/DC CONVERTER LINEAR TECH. LTC3886IUKG#10E3-1PBF-ES
IC, POLYPHASE STEP-DOWN SLAVE CONTROLLER LINEAR TECH. LTC3870EUFD#PBF
U2
U3
IC, SYNCHRONUS STEP-DOWN CONVERTER
IC, 24LC05-I/ST
LINEAR TECH. LTC3630EMSE#PBF
MICROCHIP 24LC025-I/ST
LINEAR TECH. LTC6992IS6-1
LINEAR TECH. LT1803IS5
U4
U5
IC, LTC6992
U6
IC, SINGLE OP AMP
dc2155afb
16
DEMO MANUAL
DC2155A-A/DC2155A-B
DC2155A-B
PARTS LIST
ITEM QTY REFERENCE
PART DESCRIPTION
MANUFACTURER/PART NUMBER
DC2155A-B Additional Demo Board Circuit Components
1
2
0
0
0
0
0
0
0
0
0
0
0
0
C16, C17, C31, C32, C51, C53, C65, C66 CAP, 7343 OPTION
OPTION
C19, C34, C35, C56, C69, C73
CAP, 0603 OPTION
CAP, 0805 OPTION
CAP, 1210 OPTION
CAP, ELEC OPTION
DIODE, ZENER OPTION
DIODE, OPTION
OPTION
3
C71, C77, C91, C92
OPTION
4
C75
OPTION
5
C86, C87
OPTION
6
D8
OPTION
7
D9, D12
OPTION
8
L1, L2, L3, L4
IND, 6.8µH OPTION
IND, 6.8µH OPTION
XSTR, OPTION
COILCRAFT SER2915-682KL OPTION
COILCRAFT SER2918H-682KL OPTION
OPTION
9
L1, L2, L3, L4 - ALTERNATE
Q2, Q4, Q5, Q8, Q12, Q14, Q16, Q17
Q27
10
11
12
XSTR, N-CHANNEL DMOS FET OPTION
RES, 0603 OPTION
OPTION
OPTION
R19, R20, R29, R31, R32, R33, R34,
R35, R36, R39, R40, R41, R42, R46,
R47, R48, R49, R54, R55, R71, R72,
R77, R79, R82, R83, R97, R100, R101,
R102, R103, R104, R105, R108, R110,
R111, R116, R117, R144, R145, R147,
R169
13
13
0
0
R90, R92, R94, R95
R107
RES, 0805 OPTION
RES, 1206 OPTION
OPTION
OPTION
DC2155A-B Hardware: For Demo Board Only
1
26 E1, E2, E3, E4, E5, E6, E7, E8, E11, E12, TURRET
MILL-MAX 2501-2-00-80-00-00-07-0
E14, E16, E18, E20, E21, E22, E23, E24,
E25, E26, E27, E29, E30, E32, E35, E36
2
3
5
6
JP1, JP2, JP3, JP5, JP6
HEADER, 3 PIN 2mm
SULLINS NRPN031PAEN-RC
PEM KFH-032-10
J1, J2, J3, J4, J5, J6
STUD, TESTPIN
4
2
J7, J12
J9
CONN, BNC, 5 PINS
CONNEX 112404
5
1
HEADER, 14PIN DUAL ROW R/A
CONN, SOCKET 14PIN DUAL ROW R/A
HEADER, 12PIN 2mm STR DL
LUG RING, #10
MOLEX 87760-1416
SULLINSINC. NPPN072FJFN-RC
FCI 98414-G06-12ULF
KEYSTONE 8205
6
1
J10
7
1
J11
8
10
4
9
MH1, MH2, MH3, MH4
SW1, SW2
STANDOFF, SNAP ON
KEYSTONE_8831
10
11
12
13
20
2
NUT, BRASS 10-32
ANY #10-32
SWITCH, SUBMINATURE SLIDE
WASHER, #10 TIN PLATED BRASS
SHUNT
C&K JS202011CQN
ANY #10 EXT BZ TN
SAMTEC 2SN-BK-G
10
5
XJP1, XJP2, XJP3, XJP5, XJP6
dc2155afb
17
DEMO MANUAL
DC2155A-A/DC2155A-B
SCHEMATIC DIAGRAM
3
2
1
3
2
1
3
2
1
5
5
5
5
5
5
3
2
1
5
5
3
2
1
3
2
1
3
2
1
3
2
1
2
2
1
1
I I I N M
I I N P
C
E X T V C
4 3
4 6
4 7
4 8
I N T V C C
4 4
D V D 3 3
3 0
2 7
V I N
D V D 2 5
dc2155afb
18
DEMO MANUAL
DC2155A-A/DC2155A-B
SCHEMATIC DIAGRAM
3
2
1
5
5
3
2
1
5
5
3
2
1
5
5
3
2
1
3
2
1
5
5
3
2
1
3
2
1
3
2
1
2
1
I N T V C C
E X T V C
1 7
1 8
2 0
N D G P
1 9
2 9
C
G N D
V I N
dc2155afb
19
DEMO MANUAL
DC2155A-A/DC2155A-B
SCHEMATIC DIAGRAM
G N D
G N D
G N D
G N D
1 7
1 6
1 4
8
5
4
3
2
5
4
3
2
1
3
3
2
1
5
1
3
2
2
3
3
2
3
2
3
2
3
2
1
dc2155afb
20
DEMO MANUAL
DC2155A-A/DC2155A-B
SCHEMATIC DIAGRAM
1
4
3
6
2
1
4
3
6
2
dc2155afb
21
DEMO MANUAL
DC2155A-A/DC2155A-B
SCHEMATIC DIAGRAM
3
2
1
3
2
1
3
2
1
5
5
5
5
5
5
3
2
1
5
5
3
2
1
3
2
1
3
2
1
3
2
1
2
2
1
1
I I I N M
I I N P
C
E X T V C
4 3
4 6
4 7
4 8
I N T V C C
4 4
D V D 3 3
3 0
2 7
V I N
D V D 2 5
dc2155afb
22
DEMO MANUAL
DC2155A-A/DC2155A-B
SCHEMATIC DIAGRAM
3
2
1
5
5
3
2
1
5
5
3
2
1
5
5
3
2
1
3
2
1
5
5
3
2
1
3
2
1
3
2
1
2
1
I N T V C C
E X T V C
1 7
1 8
2 0
N D G P
1 9
2 9
C
G N D
V I N
dc2155afb
23
DEMO MANUAL
DC2155A-A/DC2155A-B
SCHEMATIC DIAGRAM
G N D
G N D
G N D
G N D
1 7
1 6
1 4
8
5
4
3
2
5
4
3
2
1
3
3
2
1
5
1
3
2
2
3
3
2
3
2
3
2
3
2
1
dc2155afb
24
DEMO MANUAL
DC2155A-A/DC2155A-B
SCHEMATIC DIAGRAM
1
4
3
6
2
1
4
3
6
2
dc2155afb
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
25
DEMO MANUAL
DC2155A-A/DC2155A-B
DEMONSTRATION BOARD IMPORTANT NOTICE
Linear Technology Corporation (LTC) provides the enclosed product(s) under the following AS IS conditions:
Thisdemonstrationboard(DEMOBOARD)kitbeingsoldorprovidedbyLinearTechnologyisintendedforuseforENGINEERINGDEVELOPMENT
OR EVALUATION PURPOSES ONLY and is not provided by LTC for commercial use. As such, the DEMO BOARD herein may not be complete
in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including but not limited to product safety
measures typically found in finished commercial goods. As a prototype, this product does not fall within the scope of the European Union
directive on electromagnetic compatibility and therefore may or may not meet the technical requirements of the directive, or other regulations.
If this evaluation kit does not meet the specifications recited in the DEMO BOARD manual the kit may be returned within 30 days from the date
of delivery for a full refund. THE FOREGOING WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY THE SELLER TO BUYER AND IS IN LIEU
OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS
FOR ANY PARTICULAR PURPOSE. EXCEPT TO THE EXTENT OF THIS INDEMNITY, NEITHER PARTY SHALL BE LIABLE TO THE OTHER FOR
ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES.
The user assumes all responsibility and liability for proper and safe handling of the goods. Further, the user releases LTC from all claims
arising from the handling or use of the goods. Due to the open construction of the product, it is the user’s responsibility to take any and all
appropriate precautions with regard to electrostatic discharge. Also be aware that the products herein may not be regulatory compliant or
agency certified (FCC, UL, CE, etc.).
No License is granted under any patent right or other intellectual property whatsoever. LTC assumes no liability for applications assistance,
customer product design, software performance, or infringement of patents or any other intellectual property rights of any kind.
LTC currently services a variety of customers for products around the world, and therefore this transaction is not exclusive.
Please read the DEMO BOARD manual prior to handling the product. Persons handling this product must have electronics training and
observe good laboratory practice standards. Common sense is encouraged.
This notice contains important safety information about temperatures and voltages. For further safety concerns, please contact a LTC applica-
tion engineer.
Mailing Address:
Linear Technology
1630 McCarthy Blvd.
Milpitas, CA 95035
Copyright © 2004, Linear Technology Corporation
dc2155afb
LT 0616 REV B • PRINTED IN USA
LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
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LINEAR TECHNOLOGY CORPORATION 2015
(408) 432-1900 FAX: (408) 434-0507 www.linear.com
相关型号：
LTC3870IUF-1#PBF
LTC3870-1 - PolyPhase Step-Down Slave Controller for Digital Power System Management; Package: QFN; Pins: 24; Temperature Range: -40°C to 85°C
Linear
LTC3871HLXE#PBF
LTC3871 - Bidirectional PolyPhase® Synchronous Buck or Boost Controller; Package: LQFP; Pins: 48; Temperature Range: -40°C to 125°C
Linear
LTC3872EDDB#PBF
LTC3872 - No RSENSE Current Mode Boost DC/DC Controller; Package: DFN; Pins: 8; Temperature Range: -40°C to 85°C
Linear
LTC3872EDDB#TR
IC SWITCHING CONTROLLER, 650 kHz SWITCHING FREQ-MAX, PDSO8, 3 X 2 MM, PLASTIC, MO-229WECD-1, DFN-8, Switching Regulator or Controller
Linear
LTC3872EDDB#TRMPBF
LTC3872 - No RSENSE Current Mode Boost DC/DC Controller; Package: DFN; Pins: 8; Temperature Range: -40°C to 85°C
Linear
LTC3872EDDB-1#PBF
LTC3872-1 - No RSENSE Current Mode Boost DC/DC Controller; Package: DFN; Pins: 8; Temperature Range: -40°C to 85°C
Linear
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