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Description
Demonstration circuit 2001A is a step-up DC/DC converter
using two
LTC3787EUFD
controllers in a parallel configuration for high current, high
power 4-phase operation.
The DC2001A has an input supply voltage range from
6V to 24V. The converter provides an output voltage of
24V, with a very high efficiency output of 25A to 30A, as
shown in Figure 2.
performance summary
PARAMETER
Minimum Input Voltage
Maximum Input Voltage
Output Voltage
Default Operating Frequency
Efficiency
dual-phase synchronous boost
Specifications are at T
DEMO MANUAL DC2001A
4-Phase High Current
The
LTC3787
data sheet gives a complete description
of the part, operation and application information, and
must be read in conjunction with this demo manual for
the DC2001A.
Design files for this circuit board are available at
http://www.linear.com/demo
L, LT, LTC, LTM, Linear Technology, Burst Mode and the Linear logo are registered trademarks
of Linear Technology Corporation. All other trademarks are the property of their respective
owners.
= 25°C
A
CONDITIONS
I
= 0A to 25A
OUT
I
= 0A to 30A
OUT
V
= 6V to 24V, MODE = FCC
IN
FREQ = GND
V
= 18V, V
= 24V, I
= 30A
IN
O
O
LTC3787EUFD
Synchronous
Step-Up Converter
UNITS
6V
24V
24V ±2%
350kHz
98.2%
dc2001af
1
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Related Manuals for Linear Technology DC2001A
Summary of Contents for Linear Technology DC2001A
- Page 1 6V to 24V. The converter provides an output voltage of 24V, with a very high efficiency output of 25A to 30A, as L, LT, LTC, LTM, Linear Technology, Burst Mode and the Linear logo are registered trademarks shown in Figure 2.
-
Page 2: Quick Start Procedure
DEMO MANUAL DC2001A Quick start proceDure Demonstration circuit 2001A is easy to set up to evalu- 4. Turn on the supply and adjust the voltage to the desired ate the performance of the LTC3787. Refer to Figure 1 value, up to 24V, while monitoring the output. - Page 3 DEMO MANUAL DC2001A Quick start proceDure = 18V = 12V = 9V = 6V Load Current (A) dc2001a F02 Figure 2. Efficiency Curves, f = 350kHz, MODE = FCC dc2001af...
-
Page 4: Parts List
DEMO MANUAL DC2001A parts List ITEM REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER Required Circuit Components CIN1A-CIN4A, CIN1B-CIN4B, CIN7A- CAP, X7R, 22µF, 20%, 25V, 1812 TDK, C4532X7R1E226M CIN10A, CIN7B-CIN10B, COUT1A-COUT2A, COUT1B-COUT2B, COUT4A-COUT5A, COUT4B-COUT5B, COUT7A-COUT8A, COUT7B-COUT8B, COUT10A-COUT11A, COUT10B-COUT11B CIN5-CIN6, CIN11-CIN12, COUT3, COUT6, CAP, 330µF, 20%, 35V, ELECT... - Page 5 DEMO MANUAL DC2001A parts List ITEM REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER Hardware: For Demo Board Only HEADER, 4-PIN, 2mm SULLINS, NRPN041PAEN-RC HEADER, 3-PIN, 2mm SULLINS, NRPN031PAEN-RC JP1, JP2 SHUNT SAMTEC, 2SN-BK-G E1-E2, E5, E7-E13, E17 TURRET MILL-MAX, 2501-2-00-80-00-00-07-0 E3-E4, E6, E14-E16, E18-E19...
- Page 6 DEMO MANUAL DC2001A schematic Diagram dc2001af...
-
Page 7: Schematic Diagram
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 8 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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