LTM4614

1

4614fa

TYPICAL APPLICATION

FEATURES

APPLICATIONS

DESCRIPTION

Dual 4A per Channel

µModule Regulator

The LTM

mode DC/DC power supply. Included in the package are

the switching controllers, power FETs, inductors and all

support components. The dual 4A DC/DC converters

operate over an input voltage range of 2.375V to 5.5V.

The LTM4614 supports output voltages ranging from 0.8V

to 5V. The regulator output voltages are set by a single

resistor for each output. Only bulk input and output ca-

pacitors are needed to complete the design.

The low profile package (2.82mm) enables utilization of

unused space on the bottom of PC boards for high density

point of load regulation.

Additional features include overvoltage protection, foldback

overcurrentprotection,thermalshutdownandprogrammable

soft-start. The power module is offered in a space saving

and thermally enhanced 15mm

× 15mm × 2.82mm LGA

package. The LTM4614 is Pb-free and RoHS compliant.

Different Combinations of Input and Output Voltages

NUMBER OF INPUTS

NUMBER OF OUTPUTS

2

2

4A, 4A

2 (Current Share,

Ex. 3.3V and 5V)

18A

1

2

4A, 4A

1

1

8A, see LTM4608A

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

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

owners. Protected by U.S. Patents including 5481178, 6580258, 6304066, 6127815, 6498466,

6611131, 6724174.

15mm

× 15mm × 2.82mm

Efficiency vs Output Current

Dual Output 4A DC/DC μModule

4614 F01a

FB1

FB2

LTM4614

GND1

GND2

100μF

100μF

10μF

10μF

1.2V/4A

1.5V/4A

5.76k

10k

3.3V TO 5V

3.3V TO 5V

LOAD CURRENT (A)

0

83

85

87

4

4614 TA01b

81

79

75

1

2

3

77

91

89

1.5V

1.2V