LTM4601AHVEV-PBF datasheet(1/28 Pages) LINER

Part #	LTM4601AHVEV-PBF

Description	12A, 28VIN DC/DC 關Module with PLL, Output Tracking and Margining

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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LTM4601AHV

1

4601ahvf

LOAD CURRENT (A)

0

45

50

60

65

70

95

12VIN

24VIN

80

4

8

10

4601AHV TA01b

55

85

90

75

0

1

6

3

4

5

2

6

12

14

POWER LOSS

EFFICIENCY

TYPICAL APPLICATION

APPLICATIONS

FEATURES

DESCRIPTION

12A, 28VIN DC/DC µModule

with PLL, Output Tracking

and Margining

n Telecom, Industrial and Networking Equipment

n Military and Avionics Systems

n Complete Switch Mode Power Supply

n Wide Input Voltage Range: 4.5V to 28V

n 12A DC Typical, 14A Peak Output Current

n 0.6V to 5V Output Voltage

n Output Voltage Tracking and Margining

n Redundant Mounting Pads for Enhanced Solder-

Joint Strength

n Parallel Multiple μModulesTM for Current Sharing

n Differential Remote Sensing for Precision Regulation

n PLL Frequency Synchronization

n ±1.5% Total DC Error

n Current Foldback Protection (Disabled at Start-Up)

n Pb-Free (e4) RoHS Compliant Package with Gold

Finish Pads

n –55°C to 125°C Operating Temperature Range

(LTM4601AHVMPV)

n Ultrafast™ Transient Response

n Up to 95% Efﬁciency at 5VIN, 3.3VOUT

n Programmable Soft-Start

n Output Overvoltage Protection

n Enhanced (15mm

× 15mm × 2.8mm) Surface Mount

LGA Package

2.5V/12A Power Supply with 4.5V to 28V Input

Efﬁciency and Power Loss

vs Load Current

The LTM®4601AHV is a complete 12A step-down switch

mode DC/DC power supply with onboard switching

controller, MOSFETs, inductor and all support compo-

nents. The μModule is housed in a small surface mount

15mm

× 15mm × 2.8mm LGA package. The LTM4601AHV

LGA package is designed with redundant mounting pads

to enhance solder-joint strength for extended temperature

cycling endurance. Operating over an input voltage range

of 4.5 to 28V, the LTM4601AHV supports an output volt-

age range of 0.6V to 5V as well as output voltage tracking

and margining. The high efﬁciency design delivers 12A

continuous current (14A peak). Only bulk input and output

capacitors are needed to complete the design.

The low proﬁle (2.8mm) and light weight (1.7g) pack-

age easily mounts in unused space on the back side of

PC boards for high density point of load regulation. The

μModule can be synchronized with an external clock for

reducing undesirable frequency harmonics and allows

PolyPhase® operation for high load currents.

An onboard differential remote sense ampliﬁer can be

used to accurately regulate an output voltage independent

of load current.

L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. PolyPhase is

a registered trademark of Linear Technology Corporation. μModule and Ultrafast are trademarks

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

owners. Protected by U.S. Patents including 5481178, 5847554, 6580258, 6304066, 6476589,

6774611, 6677210.

VOUT

VFB

MARG0

MARG1

VOUT_LCL

DIFFVOUT

VOSNS

+

VOSNS

–

PGOOD

RUN

COMP

INTVCC

DRVCC

MPGM

TRACK/SS

PLLIN

LTM4601AHV

ON/OFF

R1

392k

RSET

19.1k

MARGIN

CONTROL

COUT

4601AHV TA01a

VOUT

2.5V

12A

CLOCK SYNC

TRACK/SS CONTROL

100pF

CIN

VIN

fSET

PGND

SGND

5% MARGIN

VIN

4.5V TO 28V

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LTM4601AHVEV-PBF Datasheet(PDF) 1 Page - Linear Technology

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