Analog Devices LTC7810ELXE Demo Manual

DESCRIPTION
Demonstration circuit 2529A is a dual output synchro-
nous buck converter featuring the LTC
48-lead eLQFP package.
Key features of this board include: an optional on-board
NMOS LDO for DRVCC; jumper for spread-spectrum
option; optional resistors for single output dual phase
operation; a mode selector that allows the converter to
run in CCM, pulse-skipping, adjustable burst clamp or
default Burst Mode operation; SYNC turret for Poly-
®
Phase operation.
®
PERFORMANCE SUMMARY
Table 1.
PARAMETER
Input Voltage Range
Output Voltage V
OUT1
Output Voltage V
OUT2
Maximum Output Current I
OUT1,MAX
Maximum Output Current I
OUT2,MAX
Default Operating Frequency (Typical)
External Clock Sync. Frequency Range
Typical Full Load Efficiency (See Figure 4)
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DEMO MANUAL DC2529A
High Input Voltage Dual Output
Synchronous Buck Converter
The input voltage range of this demo board is from 16V to
7810ELXE in a 130V and it uses a sense resistor for overcurrent protec-
®
tion. The LTC7810 data sheet gives a complete descrip-
tion of the part, operation and application information and
must be read in conjunction with this demo manual for
DC2529A.
Design files for this circuit board are available at
http://www.analog.com/DC2529A
L, LT, LTC, LTM, Linear Technology, the Linear logo, Burst Mode and PolyPhase are registered
trademarks of Analog Devices, Inc. All other trademarks are the property of their respective
owners.
Specifications are at T
CONDITIONS
V = 16V to 130V, I = 0A to 10A, JP4: FCM
IN OUT1
V = 16V to 130V, I = 0A to 5A, JP4: FCM
IN OUT2
V = 16V to 130V, I
IN OUT1,MAX
V = 16V to 130V, I
IN OUT2,MAX
V = 48V, V = 5V, I = 10A
IN OUT1 OUT1
V = 48V, V = 12V, I = 5A
IN OUT2 OUT
For more information www.analog.com
LTC7810ELXE
= 25°C
A
VALUE
16V to 130V
5V ± 2%
12V ± 2%
10A
5A
100kHz
75kHz to 750kHz
88.7%
95.4%
UG-1311 Rev 0
1