LTM8021

1

8021fb

TYPICAL APPLICATION

FEATURES

APPLICATIONS

DESCRIPTION

Step-Down DC/DC µModule

controller, power switches, inductor, and all support

components. Operating over an input voltage range of 3V

to 36V, the LTM8021 supports an output voltage range of

0.8V to 5V, set by a single resistor. Only an output and

bulk input capacitor are needed to finish the design.

The low profile package (2.82mm) enables utilization of

unused space on the bottom of PC boards for high den-

sity point of load regulation. A built-in soft-start timer is

adjustable with just a resistor and capacitor.

The LTM8021 is packaged in a thermally enhanced,

compact (11.25mm

× 6.25mm) and low profile (2.82mm)

overmolded Land Grid Array (LGA) package suitable

for automated assembly by standard surface mount

equipment. The LTM8021 is RoHS compliant.

Pad Finish

× 6.25mm × 2.82mm)

Surface Mount LGA Package

Efficiency and Power Loss

LTM8021

8021 TA01a

7V TO

36V

5V AT 500mA

1μF

2.2μF

19.1k

RUN/SS

IN

GND

ADJ

BIAS

OUT

*RUNNING VOLTAGE RANGE. PLEASE REFER TO THE

APPLICATIONS INFORMATION SECTION FOR START-UP DETAILS.

, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.

μModule is a trademark of Linear Technology Corporation. All other trademarks are the

property of their respective owners.

0

100

200

300

450

400

50

150

250

350

8021 TA01b

LOAD CURRENT (mA)

1.00

30

40

50

70

60

10.00

100.00

90

80

1000.00

POWER

LOSS

EFFICIENCY