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dc2001af
DEMO MANUAL DC2001A
Description
LTC3787EUFD
4-Phase High Current
Synchronous
Step-Up Converter
Demonstration circuit 2001A is a step-up DC/DC converter
using two LTC3787EUFD dual-phase synchronous boost
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.
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.
performance summary
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
PARAMETER CONDITIONS UNITS
Minimum Input Voltage I
OUT
= 0A to 25A 6V
Maximum Input Voltage I
OUT
= 0A to 30A 24V
Output Voltage V
IN
= 6V to 24V, MODE = FCC 24V ±2%
Default Operating Frequency FREQ = GND 350kHz
Efficiency V
IN
= 18V, V
O
= 24V, I
O
= 30A 98.2%
Specifications are at T
A
= 25°C
