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Description
Demonstration circuit 2143A-B is a high efficiency, high
density, µModule regulator with 4.5V to 16V input range.
The output voltage is adjustable from 0.5V to 1.8V, and
it can supply 108A maximum load current. The demo
board has three LTM
LTM4677 is a dual 18A or single 36A step-down regulator
with PMBus power system management. Please see the
LTM4677 data sheet for more detailed information
DC2143A-B powers up to default settings and produces
power based on configuration resistors without the need
for any serial bus communication. This allows easy evalu-
ation of the DC/DC converter. To fully explore the extensive
power system management features of the part, download
the GUI software LTpowerPlay™ onto your PC and use
Arrow.com.
Downloaded from
Dual 18A or Single 36A µModule Regulator
with Digital Power System Management
4677 µModule
regulators, and the
®
®
Figure 1. 3× LTM4677; 108A DC2143A-B Demo Circuit
DEMO MANUAL DC2143A-B
3× LTM4677; 108A
2
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, current, temperature and fault status
GUI Download – The software can be downloaded from:
http://www.linear.com/ltpowerplay
For more details and instructions of LTpowerPlay, please
refer to LTpowerPlay GUI for LTM4677 Quick Start Guide
in this document.
Design files for this circuit board are available at
http://www.linear.com/demo/DC2143A-B
L, LT, LTC, LTM, Linear Technology, the Linear logo and µModule are registered trademarks
and LTpowerPlay is a trademark of Linear Technology Corporation. All other trademarks are the
property of their respective owners.
LTM4677
dc2143abfa
1
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Related Manuals for Linear Technology DC2143A-B
Summary of Contents for Linear Technology DC2143A-B
- Page 1 DC/DC converter. To fully explore the extensive power system management features of the part, download L, LT, LTC, LTM, Linear Technology, the Linear logo and µModule are registered trademarks and LTpowerPlay is a trademark of Linear Technology Corporation. All other trademarks are the the GUI software LTpowerPlay™...
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Page 2: Performance Summary
3. Connect the DVMs to the input and outputs. Set default (+) lead. switch position: SW1: ON; SW2: ON. Connecting a PC to DC2143A-B 4. Turn on the input power supply and check for the proper output voltages. V should be 1.0V ±1%. - Page 3 DEMO MANUAL DC2143A-B Quick start proceDure – 1mΩ LOAD (0A~108A) – OUT0 – – 4.5V to 16V – Figure 2. Proper Measurement Equipment Setup – Figure 3. Measuring Output Voltage Ripple dc2143abfa Arrow.com. Arrow.com. Arrow.com. Downloaded from Downloaded from Downloaded from...
- Page 4 DEMO MANUAL DC2143A-B Quick start proceDure Input Power Supply USB Cable 12-Pin (J7) OUT0 USB to I C/PMBus LTM4677 Demo Board Load Dongle DC1613A DC2143A-B Connector Figure 4. Demo Setup with PC = 12V = 500kHz 1.8V 100 110 LOAD CURRENT (A) DC2143AB F05 Figure 5.
- Page 5 DEMO MANUAL DC2143A-B Quick start proceDure Figure 8. Thermal Performance at V = 12V, V = 1V, I = 108A, T = 23.8°C, Air Flow 400LFM OUT0 OUT0 dc2143abfa Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Downloaded from Downloaded from Downloaded from...
- Page 6 You can use LTpowerPlay to board. The software also provides an automatic update evaluate Linear Technology ICs by connecting to a demo feature to keep the software current with the latest set board system. LTpowerPlay can also be used in an offline of device drivers and documentation.
- Page 7 1. Download and install the LTpowerPlay GUI: http://www.linear.com/ltpowerplay 2. Launch the LTpowerPlay GUI. a. The GUI should automatically identify the DC2143A-B. The system tree on the left hand side should look like this: Then, click the “W” (PC to RAM) icon to write these register values to the LTM4677.
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Page 8: Parts List
DEMO MANUAL DC2143A-B parts List ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER Required Circuit Components CIN1, CIN2, CIN4, CIN5, CIN6, CIN7, CIN8, CIN9, CAP ., X5R, 10µF, 35V, 10%,1210 MURATA, GRM32ER6YA106KA12L CIN10, CIN11, CIN12, CIN13, CIN14, CIN15 CIN3 CAP ., 150µF, 35V, ALUMINUM ELECTR. - Page 9 DEMO MANUAL DC2143A-B parts List ITEM QTY REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER R123 RES., CHIP , 1M, 1%, 0603 VISHAY CRCW06031M00FKEA R134, R144 RES., CHIP , 4.99k, 1%, 0603 VISHAY CRCW06034K99FKEA R141 RES., CHIP , 15.8k, 1%, 0603 VISHAY CRCW060315K8FKEA...
- Page 10 DEMO MANUAL DC2143A-B schematic DiaGram dc2143abfa Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from...
- Page 11 DEMO MANUAL DC2143A-B schematic DiaGram dc2143abfa Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from...
- Page 12 DEMO MANUAL DC2143A-B schematic DiaGram dc2143abfa Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from...
- Page 13 DEMO MANUAL DC2143A-B schematic DiaGram dc2143abfa Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from...
- Page 14 DEMO MANUAL DC2143A-B schematic DiaGram dc2143abfa Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from...
- Page 15 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.
- Page 16 Linear Technology Corporation (LTC) provides the enclosed product(s) under the following AS IS conditions: This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEVELOPMENT 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.
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