ltm8025 Linear Technology Corporation, ltm8025 Datasheet

ltm8025

Manufacturer Part Number

ltm8025

Description

36v, 3a Step-down ?module Converter

Manufacturer

Linear Technology Corporation

Datasheet

1.LTM8025.pdf (20 pages)

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FEATURES

APPLICATIONS

TYPICAL APPLICATION

Complete Step-Down Switch Mode Power Supply

Wide Input Voltage Range: 3.6V to 36V

Up to 3A Output Current

Parallelable for Increased Output Current

0.8V to 24V Output Voltage

Selectable Switching Frequency: 200kHz to 2.4MHz

Current Mode Control

(e4) RoHS Compliant Package with Gold Pad Finish

Programmable Soft-Start

Tiny, Low Proﬁ le (15mm × 9mm × 4.32mm) Surface

Mount LGA Package

Automotive Battery Regulation

Power for Portable Products

Distributed Supply Regulation

Industrial Supplies

Wall Transformer Regulation

22V TO 36V

*RUNNING VOLTAGE RANGE. PLEASE REFER TO

APPLICATIONS INFORMATION SECTION FOR START-UP DETAILS

4.7μF

47.5k

RUN/SS

SYNC

LTM8025

GND

PGOOD

BIAS

AUX

ADJ

OUT

34.8k

22μF

12V AT 3A

8025 TA01a

OUT

DESCRIPTION

The LTM

verter. Included in the package are the switching controller,

power switches, inductor and all support components.

Operating over an input voltage range of 3.6V to 36V, the

LTM8025 supports an output voltage range of 0.8V to 24V

and a switching frequency range of 200kHz to 2.4MHz,

each set by a single resistor. Only the bulk input and output

ﬁ lter capacitors are needed to ﬁ nish the design.

The low proﬁ le package (4.32mm) enables utilization of

unused space on the bottom of PC boards for high density

point of load regulation.

The LTM8025 is packaged in a thermally enhanced, compact

(15mm × 9mm) and low proﬁ le (4.32mm) over-molded

land grid array (LGA) package suitable for automated

assembly by standard surface mount equipment. The

LTM8025 is RoHS compliant.

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

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

8025 is a 36V

100

µModule Converter

36V, 3A Step-Down

= 24V

500

OUTPUT CURRENT (mA)

1000

, 3A step down μModule

Efﬁ ciency

1500

2000

LTM8025

2500

8025 TA01b

3000

con-

8025f

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