Linear Technology DC2237A Demo Manual

DESCRIPTION
Demonstration circuit 2237A is a 58V
Down μModule Regulator featuring the LTM8064. The
®
demo circuit is designed for a 5V output from an input
voltage range of 7.5V to 58V. The output can source 7A
(typical) or sink 9.1A (typical). The circuit can be operated
in either constant voltage mode or constant current mode.
Two or more LTM8064s can be paralleled to share load
current equally. In this configuration, a master part deter-
mines the output currents of the slave parts. The MODE
pin of the master part should be floating and all MODE
pins of slave parts should be grounded.
When the output sinks current, the circuit maintains
its output voltage regulation by power conversion, not
BOARD PHOTO
DEMO MANUAL DC2237A
58V
, 6A, CVCC Step- power dissipation. This means that the energy provided
IN
to LTM8064 is in turn delivered to its input power bus.
There must be something on the input power bus to ac-
cept or use the energy.
The LTM8064 data sheet gives a complete description of
the part, operation and application information. The data
sheet must be read in conjunction with this quick start
guide for demo circuit 2237A.
Design files for this circuit board are available at
http://www.linear.com/demo/DC2237A
L, LT, LTC, LTM, Linear Technology, the Linear logo and μModule are registered trademarks of
Linear Technology Corporation. All other trademarks are the property of their respective owners.
Figure 1. DC2237A Board Picture
, 6A CVCC Step‑Down
IN
μModule Regulator
LTM8064
dc2237af
1