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dc1601bf

DEMO MANUAL DC1601B

DESCRIPTION

LTM4607EV

High Efficiency PolyPhase

Buck-Boost Power Supply

high efficiency switching mode buck-boost power supply.

The DC1601B input voltage range is from 6V to 36V and

is capable of delivering high power through paralleled

LTM4607 modules. The demo circuit can deliver up to 10A

of output current for two paralleled modules (DC1601B-A),

15A for three paralleled modules (DC1601B-B) and up

to 20A for four paralleled modules (DC1601B-C). The

DC1601B demonstrates that paralleling modules is easy

and reliable.

The output voltage for the board is 12V. The rated load

current per module is 5A in boost mode, however cur-

frequency, and thermal conditions. An onboard external

clock is provided for synchronization and interleaving of

L, LT, LTC, LTM, Linear Technology, PolyPhase and the Linear logo are registered trademarks

of Linear Technology Corporation. All other trademarks are the property of their respective

owners.

phases to minimize input and output ripple. An internal

phase-locked loop allows the LTM4607 to be synchro-

nized to an external clock within the range of 200kHz to

400kHz. The LTM4607 default switching frequency on the

DC1601B is set to 300kHz through the onboard LTC6902

clock generator which interleaves the paralleled phases.

The frequency and phase separation set by the LTC6902

are resistor programmable.

These features, including the availability of the LTM4607 in

a compact thermally enhanced 15mm × 15mm × 2.8mm

LGA package make the demonstration circuit ideal for

use in high density point of load regulation applications.

Design files for this circuit board are available at

http://www.linear.com/demo

BOARD PHOTO

DC1601B-C

SHOWN