LTM8049
Dual SEPIC or Inverting
µModule DC/DC Converter
FEATURES
DESCRIPTION
TheLTM®8049isaDualSEPIC/InvertingµModule® (power
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.
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Two Complete Switch Mode Power Supplies
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SEPIC or Inverting Topology
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Wide Input Voltage Range: 1.6V to 10V
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1.5V to 14V or –1.5V to –14V Output Voltage
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±A at 5V
from ±1V
OUT
IN
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Selectable Switching Frequency: 100kHz to 1.5MHz
Power Good Outputs for Event Based Sequencing
User Configurable Undervoltage Lockout
(e4) RoHS Compliant Package with Gold Pad Finish
Low Profile 15mm × 9mm × 2.42mm Surface Mount
BGA Package
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
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Battery Powered Regulator
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Local Negative Voltage Regulator
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.
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Low Noise Amplifier Power
TYPICAL APPLICATION
±±1VOUT from 1.7VIN to 10VIN
Maximum Load Current vs VIN
1.5
V
V
OUT1P
IN1
V
V
OUT1
IN
2.7V TO 20V
12V
4.7µF
FBX1
RUN1
×2
130k
V
OUT1N
RT1
1.0
0.5
0
22µF
80.6k
1MHz
CLKOUT1
SYNC2
RT2
LTM8049
80.6k
1MHz
V
V
OUT2P
IN2
47µF
FBX2
RUN2
143k
V
OUT2N
V
OUT2
SYNC1
–12V
0
5
10
(V)
15
20
V
IN
PINS NOT USED: SS1, SS2, PG1, PG2, CLKOUT2, SHARE1, SHARE2
8049 TA01a
8049 TA01
8049f
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For more information www.linear.com/LTM8049