LTM4710-1

1

Rev. 0

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LOAD CURRENT (A)

0

4

8

12

16

20

24

28

32

70

75

80

85

90

95

47101 TA01b

VIN = 5V

VIN = 3.3V

1.2V

100 F

× 4

100kΩ

536kΩ

VIN1,2,3,4

VOSNS1

VOUT1,2,3,4

PG1,2,3,4

RT1

RT2

RT3

RT4

RUN1,2,3,4

COMP1a,2a,3a,4a

COMP1b

AGND1,2,3,4

GND

PINS NOT SHOWN IN THIS CIRCUIT: SSTT, SW

LTM4710-1

22 F

× 4

VIN

2.5V TO

5.5V

47101 TA01a

MODE1

MODE2,3,4

FB1

FB2,3,4

PGOOD

3MΩ

332kΩ

VIN

VIN

0Ω

OPT

OPT

OPT

(90° PHASE SHIFT)

(180° PHASE SHIFT)

(270° PHASE SHIFT)

(1.5MHz)

7.15kΩ

68pF

VOUT

1.2V,

32A

TYPICAL APPLICATION

FEATURES

DESCRIPTION

Low VIN, Quad 8A Silent Switcher

µModule Regulator

The LTM®4710-1 is a quad DC/DC step-down µModule

(micromodule) regulator with 8A per output. The package

includes the switching controllers, the power MOSFETs,

inductors and all supported components. Operating over

an input voltage range of 2.5V to 5.5V. Channel 1’s output

voltage can be set by only one external resistor, where

the outputs for channel 2, channel 3, and channel 4 can

be set by two external resistors. All output voltages are

programmable up to 3.6V.

The LTM4710-1 employs Silent Switcher 2 architecture

with internal hot loop bypass capacitors to achieve both

low Electromagnetic Interference (EMI) and high effi-

ciency. The LTM4710-1 is packaged in a compact (6mm

× 12mm × 3.54mm) LGA with presolder package and is

RoHS compliant.

Configurable Output Array

8A

8A

8A

8A

24A

8A

16A

16A

16A

8A

8A

32A

Paralleled Single Output, 32A DC/DC μModule Regulator

APPLICATIONS

n

Quad Output Step-Down µModule® Regulator with

Configurable 8A Output Array

n

Ultralow Noise Silent Switcher®2 Architecture

n

CISPR32 Class B Compliant

n

Input Voltage Range: 2.5V to 5.5V

n

Output Voltage Range: 0.5V to 3.6V

n

8A DC Output Current, Each Channel

n

Parallelable for Higher Output Current

n

±1.5% Maximum Total DC Output Voltage Accuracy

n

Selectable Switching Frequency: 1MHz to 5MHz

n

Power Good Indicator

n

Die Temperature Monitoring

n

6mm × 12mm × 3.54mm Land Grid Array (LGA)

with Presolder Package

n

Optical Communications

n

Multi-Rail Point-of-Load Regulation

n

Field Programmable Gate Arrays (FPGAs), Digital

signal processing (DSPs) and Application Specific

Integrated Circuits (ASICs) Applications

n

Telecom, Datacom, Networking System

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Efficiency at 1.2VOUT