LTM8057_15 Datasheet, PDF (1/20 Pages) Linear Technology – 3.1VIN to 31VIN Isolated Module DC/DC Converter

LTM8057
3.1V_IN to 31V_IN Isolated
µModule DC/DC Converter
FEATURES
DESCRIPTION
n _{2kV AC Isolated µModule Converter (Tested at 3kVDC)}
n _{UL60950 Recognized File 464570}
n _{Wide Input Voltage Range: 3.1V to 31V}
n _{Up to 440mA Output Current (VIN = 24V, VOUT1 = 2.5V)}
Output Adjustable from 2.5V to 12V
n _{Current Mode Control}
n _{Programmable Soft-Start}
n _{User Configurable Undervoltage Lockout}
n _{Low Profile (9mm × 11.25mm × 4.92mm)}
BGA Package
APPLICATIONS
n _{Industrial Sensors}
n _{Industrial Switches}
n _{Test and Measurement Equipment}
The LTM^®8057 is a 2kV AC isolated flyback µModule^®
(micromodule) DC/DC converter. Included in the package
are the switching controller, power switches, transformer,
and all support components. Operating over an input volt-
age range of 3.1V to 31V, the LTM8057 supports an output
voltage range of 2.5V to 12V, set by a single resistor. Only
output and input capacitors are needed to finish the design.
Other components may be used to control the soft-start
control and biasing.
The LTM8057 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 LTM8057 is
available with SnPb 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
2kV AC Isolated µModule Regulator
V_IN
4.3V TO 29V
V_IN
•
V_OUT
V_OUT
5V
RUN
2.2µF
GND
•
V_OUT–
22µF
4.7µF
6.98k
BIAS
SS
ADJ
LTM8057
8057 TA01a
2kV AC ISOLATION
Maximum Output Current vs V_IN
400
300
200
100
0
0
5 10 15 20 25 30
V_IN (V)
8057 TA01b
8057f
For more information www.linear.com/LTM8057
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