DC1724A【PDF 1/6 页】BOARD EVAL LTM8029

DEMO MANUAL DC1724A

DESCRIPTION

DC1724A is a μModule ? step-down converter, featuring the

LTM8029, which consumes only 5μA of quiescent current.

The demo circuit is designed for a 5V, 600mA output at an

operating frequency of 600kHz. The input voltage range

is from 5.6V to 36V. Equipped with an off-time skipping

capability, the LTM8029 can operate at input voltages lower

than other step-down regulators.

The wide input range of the LTM8029 allows a variety of

input sources such as automotive batteries and industrial

supplies. Its current mode control scheme creates fast

transient response and good loop stability. At light loads,

the LTM8029 operates in Burst Mode ? operation to maintain

high efficiency and low output ripple over a broad current

LTM8029

36V IN , 600mA Step-Down

μModule Converter with

5μA Quiescent Current

range. To provide a programmable undervoltage lockout,

users can remove jumper JP1 and populate R1 and R3

on the RUN pin.

The LTM8029 data sheet gives a complete description of

the part, operation and application information. The data

sheet must be read in conjunction with this demo manual

prior to working on or modifying demo circuit DC1724A.

Design files for this circuit board are available at

http://www.linear.com/demo

L , LT, LTC, LTM, μModule, Linear Technology, the Linear logo and Burst Mode are registered

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

respective owners.

BOARD PHOTO

dc1724af

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