LTM8068
2.8V to 40V Isolated
IN
IN
µModule DC/DC Converter
with LDO Post Regulator
FEATURES
DESCRIPTION
The LTM®8068 is a 2kVAC isolated flyback µModule®
(power module) DC/DC converter with LDO post regula-
tor. Included in the package are the switching controller,
power switches, transformer, LDO, and all support com-
ponents. Operating over an input voltage range of 2.8V to
40V, the LTM8068 supports an output voltage range of
2.5V to 18V, set by a single resistor. There is also a linear
post regulator whose output voltage is adjustable from
1.2V to 18V as set by a single resistor. Only output and
input capacitors are needed to finish the design.
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2kVAC Isolated µModule Converter
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UL60950 Recognized File E464570
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Wide Input Voltage Range: 2.8V to 40V
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V
Output:
OUT1
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Up to 450mA (V = 24V V = 5V)
IN
, OUT1
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2.5V to 18V Output Range
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V
Low Noise Linear Post Regulator:
OUT2
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Up to 300mA
1.2V to 18V Output Range
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Current Mode Control
User Configurable Undervoltage Lockout
Low Profile (9mm × 11.25mm × 4.92mm)
BGA Package
The LTM8068 is packaged in a thermally enhanced, com-
pact (9mm × 11.25mm × 4.92mm) overmolded ball grid
array (BGA) package suitable for automated assembly
by standard surface mount equipment. The LTM8068 is
available with SnPb or RoHS compliant terminal finish.
APPLICATIONS
L, LT, LTC, LTM, Linear Technology, the Linear logo and µModule are registered trademarks of
Analog Devices, Inc. All other trademarks are the property of their respective owners.
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Industrial Sensors
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Industrial Switches
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Ground Loop Mitigation
TYPICAL APPLICATION
2kVAC Isolated Low Noise µModule Regulator
Total Output Current vs VIN
350
V
V
V
(5.6V)
IN
OUT1
OUT2
FB2
V
IN
2.8V TO 38V
22µF
V
OUT2
•
5V
RUN
FB1
LOW
NOISE
LDO
250
150
50
300mA MAX
2.2µF
•
10µF
162k
V
OUTN
7.32k
LTM8068
GND
8068 TA01a
PIN BYP IS NOT USED IN THIS SCHEMATIC
0
9
18
(V)
27
36
V
IN
8068 TA01
8068fb
1
For more information www.linear.com/LTM8068