LTM4606

1

4606f

FREQUENCY (MHz)

0

100

10

90

70

50

30

80

60

40

20

0

500

900

300

700

4606 TA01b

1000

400

800

200

600

100

CISPR.22, CLASS B, 3 METERS

PGOOD

RUN

COMP

TRACK/SS

FCB

MARG0

MARG1

MPGM

TRACK/SS

CONTROL

47pF

2.5V AT 6A

10μF

35V

CERAMIC

x2

4.5V TO 28V

PLLIN

CLOCK SYNC

ON/OFF

LTM4606

SGND

PGND

MARGIN

CONTROL

19.1k

392k

5% MARGIN

4606 TA01

10μF

35V

TYPICAL APPLICATION

FEATURES

APPLICATIONS

DESCRIPTION

DC/DC µModule

6A switching mode DC/DC power supply. Included in the

package are the switching controller, power FETs, inductor,

and all support components. The on-board input filter and

noise cancellation circuits achieve low noise operation, thus

effectively reducing the electromagnetic interference (EMI).

Operating over an input voltage range of 4.5V to 28V, the

LTM4606 supports an output voltage range of 0.6V to 5V,

set by a single resistor. This high efficiency design deliv-

ers 6A continuous current (8A peak). Only bulk input and

output capacitors are needed to finish the design.

High switching frequency and an adaptive on-time current

mode architecture enables a very fast transient response

to line and load changes without sacrificing stability. The

device supports output voltage tracking and output volt-

age margining.

Furthermore, the μModule™ can be synchronized with an

externalclockforreducingundesirablefrequencyharmonics

The LTM4606 is offered in a space saving and thermally

enhanced 15mm

× 15mm × 2.8mm LGA package, which

enables utilization of unused space on the bottom of

PC boards for high density point of load regulation. The

LTM4606 is Pb-free and RoHS compliant.

Ultralow Noise 2.5V/6A Power Supply with 4.5V to 28V Input

(LTM4606MPV)

(15mm

× 15mm × 2.8mm)

L, LT, LTC, LTM and PolyPhase 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.