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LTM8049 Scheda tecnica(PDF) 1 Page - Linear Technology

Il numero della parte LTM8049
Spiegazioni elettronici  Dual SEPIC or Inverting 關Module DC/DC Converter
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Produttore elettronici  LINER [Linear Technology]
Homepage  http://www.linear.com
Logo LINER - Linear Technology

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LTM8049
1
8049fa
For more information www.linear.com/LTM8049
TYPICAL APPLICATION
FEATURES
DESCRIPTION
Dual SEPIC or Inverting
µModule DC/DC Converter
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.
The LTM8049 is packaged in a thermally enhanced, com-
pact (15mm × 9mm) over-molded Ball Grid Array (BGA)
package suitable for automated assembly by standard
surface mount equipment. The LTM8049 is available with
SnPb (BGA) or RoHS compliant terminal finish.
Maximum Load Current vs VIN
±12VOUT from 2.7VIN to 20VIN
APPLICATIONS
n
Two Complete Switch Mode Power Supplies
n
SEPIC or Inverting Topology
n
Wide Input Voltage Range: 2.6V to 20V
n
2.5V to 24V or –2.5V to –24V Output Voltage
n
1A at 5VOUT from 12VIN
n
Selectable Switching Frequency: 200kHz to 2.5MHz
n
Power Good Outputs for Event Based Sequencing
n
User Configurable Undervoltage Lockout
n
(e4) RoHS Compliant Package with Gold Pad Finish
n
Low Profile 15mm × 9mm × 2.42mm Surface Mount
BGA Package
n
Battery Powered Regulator
n
Local Negative Voltage Regulator
n
Low Noise Amplifier Power
All registered trademarks and trademarks are the property of their respective owners.
VIN (V)
0
5
10
15
20
0
0.5
1.0
1.5
8049 TA01
LTM8049
130k
8049 TA01a
VOUT1P
VOUT1N
VIN1
RUN1
RT1
80.6k
1MHz
VIN
2.7V TO 20V
VOUT1
12V
VOUT2
–12V
4.7µF
×2
22µF
47µF
SYNC2
CLKOUT1
FBX1
RT2
80.6k
1MHz
143k
VOUT2P
VOUT2N
VIN2
RUN2
SYNC1
PINS NOT USED: SS1, SS2, PG1, PG2, CLKOUT2, SHARE1, SHARE2
FBX2


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