LTM8058_15 Datasheet, PDF (1/20 Pages) Linear Technology – 3.1VIN to 31VIN Isolated Module DC/DC Converter with LDO Post Regulator

FEATURES
n _{2kV AC Isolated µModule Converter}
(Tested to 3kVDC)
n _{UL60950 Recognized File E464570}
n _{Wide Input Voltage Range: 3.1V to 31V}
n _{VOUT1 Output:}
Up to 440mA (V_IN = 24V_, V_OUT1 = 2.5V)
2.5V to 13V Output Range
n _{VOUT2 Low Noise Linear Post Regulator:}
Up to 300mA
1.2V to 12V Output Range
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 _{Ground Loop Mitigation}
LTM8058
3.1V_IN to 31V_IN Isolated
µModule DC/DC Converter
with LDO Post Regulator
DESCRIPTION
The LTM^®8058 is a 2kV AC isolated flyback µModule^®
(micromodule) DC/DC converter with LDO post regulator.
Included in the package are the switching controller, power
switches, transformer, LDO, and all support components.
Operating over an input voltage range of 3.1V to 31V, the
LTM8058 supports an output voltage range of 2.5V to 13V,
set by a single resistor. There is also a linear post regulator
whose output voltage is adjustable from 1.2V to 12V as
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 LTM8058 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 LTM8058 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 Low Noise µModule Regulator
V_IN
4.3V TO 29V
V_IN
RUN
2.2µF
GND
4.7µF
6.19k
BIAS
SS
ADJ1
•
•
2kV AC ISOLATION
LOW
NOISE
LDO
V_OUT1
V_OUT2
ADJ2
BYP
V_OUT–
162k
V_OUT1
5.7V
22µF
V_OUT2
5V
10µF
LTM8058
8058 TA01a
For more information www.linear.com/LTM8058
Total Output Current vs V_IN
330
280
230
180
130
80
0
5 10 15 20 25 30
INPUT VOLTAGE (V)
8058 TA01b
8058fa
1