LTM4600EV Linear Technology Corporation, LTM4600EV Datasheet

LTM4600EV

Manufacturer Part Number

LTM4600EV

Description

Manufacturer

Linear Technology Corporation

Datasheets

1.LTM4600IV.pdf (24 pages)

2.LTM4600EV.pdf (24 pages)

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APPLICATIO S

FEATURES

■

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,

6100678, 6580258, 5847554, 6304066.

TYPICAL APPLICATIO

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

Complete Switch Mode Power Supply

Wide Input Voltage Range: 4.5V to 20V

10A DC, 14A Peak Output Current

Parallel Two µModule™ DC/DC Converters for 20A

Output Current

0.6V to 5V Output Voltage

1.5% Output Voltage Regulation

Ultrafast Transient Response

Current Mode Control

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

Pad Finish

Up to 92% Efﬁ ciency

Programmable Soft-Start

Output Overvoltage Protection

Optional Short-Circuit Shutdown Timer

Small Footprint, Low Proﬁ le (15mm × 15mm ×

2.8mm) Surface Mount LGA Package

Telecom and Networking Equipment

Servers

Industrial Equipment

Point of Load Regulation

10A µModule Power Supply with 4.5V to 20V Input

4.5V TO 20V

PGND SGND

LTM4600

OSET

OUT

66.5k

4600 TA01a

1.5V

10A

OUT

DESCRIPTIO

The LTM

supply. Included in the package are the switching control-

ler, power FETs, inductor, and all support components.

Operating over an input voltage range of 4.5V to 20V, the

LTM4600 supports an output voltage range of 0.6V to 5V,

set by a single resistor. This high efﬁ ciency design delivers

10A continuous current (14A peak), needing no heat sinks

or airﬂ ow to meet power speciﬁ cations. Only bulk input

and output capacitors are needed to ﬁ nish the design.

The low proﬁ le package (2.8mm) enables utilization of

unused space on the bottom of PC boards for high density

point of load regulation. High switching frequency and an

adaptive on-time current mode architecture enables a very

fast transient response to line and load changes without

sacriﬁ cing stability. Fault protection features include

integrated overvoltage and short circuit protection with

a defeatable shutdown timer. A built-in soft-start timer is

adjustable with a small capacitor.

The LTM4600 is packaged in a thermally enhanced, compact

(15mm × 15mm) and low proﬁ le (2.8mm) over-molded

Land Grid Array (LGA) package suitable for automated

assembly by standard surface mount equipment. The

LTM4600 is Pb-free and RoHS compliant.

4600 is a complete 10A, DC/DC step down power

100

10A High Efﬁ ciency

Efﬁ ciency vs Load Current

DC/DC µModule

with 12V

LOAD CURRENT (A)

(FCB = 0)

1.2V

1.5V

2.5V

3.3V

LTM4600

4600 TA01b

OUT

4600fa

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