LTM8047_15 Datasheet, PDF (1/18 Pages) Linear Technology – 3.1VIN to 32VIN Isolated Module DC/DC Converter

LTM8047
3.1V_IN to 32V_IN Isolated
µModule DC/DC Converter
Features
n _{Complete Switch Mode Power Supply}
n _{725VDC Isolation}
n _{Wide Input Voltage Range: 3.1V to 32V}
n _{Up to 440mA Output Current (VOUT = 2.5V)}
n _{2.5V to 12V Output Voltage}
n _{Current Mode Control}
n _{Programmable Soft-Start}
n _{User Configurable Undervoltage Lockout}
n _{SnPb or RoHS Compliant Finish}
n _{Low Profile (11.25mm × 9mm × 4.92mm) Surface}
Mount BGA Package
Applications
n _{Industrial Sensors}
n _{Industrial Switches}
n _{Ground Loop Mitigation}
Description
The LTM^®8047 is an isolated flyback µModule DC/DC
converter. The LTM8047 has an isolation rating of 725VDC.
For a similar product with LDO post regulator, see the
LTM8048. Included in the package are the switching
controller, power switches, transformer, and all support
components. Operating over an input voltage range of 3.1V
to 32V, the LTM8047 supports an output voltage range of
2.5V to 12V, set by a single resistor. Only output, input,
and bypass capacitors are needed to finish the design.
Other components may be used to control the soft-start
control and biasing.
The LTM8047 is packaged in a thermally enhanced, com-
pact (11.25mm × 9mm × 4.92mm) over-molded ball grid
array (BGA) package suitable for automated assembly by
standard surface mount equipment. The LTM8047 is avail-
able with SnPb (BGA) or RoHS compliant terminal finish.
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.
Typical Application
725V DC Isolated Low Noise µModule Regulator
V_IN
3.1V TO 29V
2.2µF
4.7µF
6.98k
LTM8047
V_IN
V_OUT
RUN
BIAS
ADJ
SS
GND
V_OUT–
725VDC ISOLATION
V_OUT
5V
280mA
(15V_IN)
22µF
8047 TA01
400
350
300
250
200
150
100
0
Maximum Load vs V_IN
5 10 15 20 25 30
V_IN (V)
8047 TA01b
For more information www.linear.com/LTM8047
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