LTM4616

1

4616fa

FEATURES

APPLICATIONS

DESCRIPTION

Dual 8A per Channel Low

The LTM

switch mode DC/DC power regulator system in a 15mm

×

15mm surface mount LGA package. Included in the package

are the switching controller, power FETs, inductor and all

support components. Operating from an input voltage

range of 2.7V to 5.5V, the LTM4616 supports two outputs

within a voltage range of 0.6V to 5V, each set by a single

external resistor. This high efficiency design delivers up

to 8A continuous current (10A peak) for each output. Only

bulk input and output capacitors are needed, depending

on ripple requirement. The part can also be configured for

a 2-phase single output at up to 16A.

The low profile package (2.82mm) enables utilization

of unused space on the back side of PC boards for high

density point-of-load regulation.

Fault protection features include overvoltage protection,

overcurrent protection and thermal shutdown. The power

module is offered in a space saving and thermally enhanced

15mm

× 15mm × 2.82mm LGA package. The LTM4616 is

Pb-free and RoHS compliant.

Different Combinations of Input and Output

Number of Inputs

Number of Outputs

2

2

8A, 8A

2

1

16A

1

2

8A, 8A

1

1

16A

Dual Output DC/DC μModule™ Regulator

■

Complete Dual DC/DC Regulator System

■

Input Voltage Range: 2.7V to 5.5V

■

Dual 8A Outputs, or Single 16A Output with a 0.6V

to 5V Range

■

Output Voltage Tracking and Margining

■

±1.75% Total DC Output Error (–40°C to 125°C)

■

Current Mode Control/Fast Transient Response

■

Power-Good Tracking and Margining

■

Overcurrent/Thermal Shutdown Protection

■

Onboard Frequency Synchronization

■

Spread Spectrum Frequency Modulation

■

Multiphase Operation

■

■

Output Overvoltage Protection

■

Gold-Pad Finish Allows Soldering with Pb and Pb-

Free Solder Paste

■

Small Surface Mount Footprint, Low Profile

(15mm

× 15mm × 2.82mm) LGA Package

■

Telecom, Networking and Industrial Equipment

■

Storage and ATCA, PCI Express Cards

■

Battery Operated Equipment

Efficiency vs Load Current

TYPICAL APPLICATION

L, LT, LTC, LTM and Burst Mode 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. Protected by U.S. Patents, including 5481178, 6580258, 6304066,

6127815, 6498466, 6611131, 6724174.

3.09k

100μF

10μF

2.5V/8A

FB1

ITHM1

FB2

ITHM2

GND1

GND2

4616 TA01a

LTM4616

2.21k

100μF

10μF

3.3V/8A

LOAD CURRENT (A)

0

70

75

80

85

90

95

246

4616 TA01b

8