Linear Technology DC1385A - LTM4614EV Demo Board | Dual μModule Regulator DC1385A DC1385A 数据表

LTM4614

1

4614fb

Dual 4A per Channel 

Low V

IN

 DC/DC 

µModule Regulator

The LTM

®

4614 is a complete 4A dual output switching mode 

step-down µModule

®

 regulator. 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 

capacitors 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 

overcurrent protection, thermal shutdown and programmable 

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

thermally enhanced 15mm 

× 15mm × 2.82mm LGA pack-

age. The LTM4614 is RoHS compliant with Pb-free finish.

2

2

4A, 4A

2 (Current Share,  

Ex. 3.3V and 5V)

1

8A

1

2

4A, 4A

1

1

8A, see LTM4608A

n

  Telecom and Networking Equipment

n

  FPGA Power

n

  SERDES and Other Low Noise Applications

L

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

and LTpowerCAD 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.

n

  Dual 4A Output Power Supply

n

  Input Voltage Range: 2.375V to 5.5V

n

  4A DC Typical, 5A Peak Output Current Each

n

  0.8V Up to 5V Output Each, Parallelable

n

 ±2% Max Total DC Output Error (0°C ≤ T

n

  Output Voltage Tracking

n

  Up to 95% Efficiency

n

  Programmable Soft-Start

n

  Short-Circuit and Overtemperature Protection

n

  Power Good Indicators

n

  Small and Very Low Profile Package:  

15mm 

× 15mm × 2.82mm

4614 F01a

V

IN1

V

IN2

V

OUT1

FB1

V

OUT2

FB2

LTM4614

GND1

GND2

100µF

100µF

10µF

10µF

V

OUT1

1.2V/4A

V

OUT2

1.5V/4A

5.76k

10k

V

IN1

3.3V TO 5V

V

IN2

3.3V TO 5V

LOAD CURRENT (A)

0

EFFICIENCY (%)

83

85

87

4

4614 TA01b

81

79

75

1

2

3

77

91

89

V

IN

 = 3.3V

V

OUT

1.5V

V

OUT

1.2V