LTM8049

1

8049f

For more information www.linear.com/LTM8049

TYPICAL APPLICATION

FEATURES

DESCRIPTION

Dual SEPIC or Inverting

µModule DC/DC Converter

module) DC/DC Converter. Each of the two outputs can

be easily configured as a SEPIC or Inverting converter by

simplygroundingtheappropriateoutputrail.TheLTM8049

includes power devices, inductors, control circuitry and

passive components. All that is needed to complete the

design are input and output caps, and small resistors to

set the output voltages and switching frequency. Other

components may be used to control the soft-start and

undervoltage lockout.

The LTM8049 is packaged in a thermally enhanced, com-

pact (15mm × 9mm) over-molded Ball Grid Array (BGA)

packagesuitableforautomatedassemblybystandardsur-

face mount equipment. The LTM8049 is RoHS compliant.

APPLICATIONS

n

Two Complete Switch Mode Power Supplies

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SEPIC or Inverting Topology

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Wide Input Voltage Range: 2.6V to 20V

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2.5V to 24V or –2.5V to –24V Output Voltage

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Selectable Switching Frequency: 200kHz to 2.5MHz

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Power Good Outputs for Event Based Sequencing

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User Configurable Undervoltage Lockout

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(e4) RoHS Compliant Package with Gold Pad Finish

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Low Profile 15mm × 9mm × 2.42mm Surface Mount

BGA Package

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Battery Powered Regulator

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Local Negative Voltage Regulator

n

Low Noise Amplifier Power

L

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

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

0

5

10

15

20

0

0.5

1.0

1.5

8049 TA01

LTM8049

130k

8049 TA01a

RUN1

RT1

80.6k

1MHz

2.7V TO 20V

12V

–12V

4.7µF

×2

22µF

47µF

SYNC2

CLKOUT1

FBX1

RT2

80.6k

1MHz

143k

RUN2

SYNC1

PINS NOT USED: SS1, SS2, PG1, PG2, CLKOUT2, SHARE1, SHARE2

FBX2