DC/DC Converter. LTM8048 Datasheet

LTM8048 Converter. Datasheet pdf. Equivalent


Part LTM8048
Description uModule DC/DC Converter
Feature LTM8048 3.1VIN to 32VIN Isolated µModule DC/DC Converter with LDO Post Regulator FEATURES n Comple.
Manufacture Linear Technology
Datasheet
Download LTM8048 Datasheet


LTM8048 3.1VIN to 32VIN Isolated µModule DC/DC Converter wit LTM8048 Datasheet
Recommendation Recommendation Datasheet LTM8048 Datasheet




LTM8048
LTM8048
3.1VIN to 32VIN Isolated
µModule DC/DC Converter
with LDO Post Regulator
FEATURES
n Complete Switch Mode Power Supply
n 725VDC Isolation
n Wide Input Voltage Range: 3.1V to 32V
n VOUT1 Output:
Up to 440mA (VOUT1 = 2.5V, 24VIN)
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 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®8048 is an isolated flyback µModule DC/DC
converter with LDO post regulator. The LTM8048 has an
isolation rating of 725VDC. 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 LTM8048 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 ad-
justable from 1.2V to 12V as 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 LTM8048 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 LTM8048 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
VIN
3.1V TO 29V
2.2µF
4.7µF
6.19k
LTM8048
VIN
RUN
BIAS
VOUT1
VOUT2
BYP
ADJ1
ADJ2
SS
GND VOUT–
725VDC ISOLATION
5.7V
22µF
162k 10µF
VOUT2
5V
8048 TA01
Total Output Current vs VIN
330
280
230
180
130
80
0
5 10 15 20 25 30
INPUT VOLTAGE (V)
8048 TA01b
For more information www.linear.com/LTM8048
8048fg
1



LTM8048
LTM8048
ABSOLUTE MAXIMUM RATINGS
(Note 1)
VIN, RUN, BIAS .........................................................32V
ADJ1, SS......................................................................5V
A(VVBVYOODIUUPNJTT2–R12ReRRGleaeeNltlalDaaitvtti)eivivv+eeteo(tttoVooVOVOVVUOUOOTUTU1U–TTT.–.––......V............O....U............T............)...............................................................................................................................................................+...+...032+1.76660VVVVV
BIAS
GND
tAobVoOvUeTV–INIs..o..l.a..t.i.o..n...(.N..o..t..e..2..)....................................................7..2..5. V0.D1VC
Maximum Internal Temperature (Note 3)............... 125°C
Maximum Solder Temperature............................... 250°C
Storage Temperature.............................. –55°C to 125°C
PIN CONFIGURATION
TOP VIEW
A
ADJ2
B
C
D
BANK 3
VOUT2
BYP
BVAONUKT–2
E
F
BANK 5
VIN RUN
G
BANK 1
VOUT1
BANK 4
GND
ADJ1
H
BIAS SS
1234567
BGA PACKAGE
45-LEAD (11.25mm × 9mm × 4.92mm)
TJMAX = 125°C, θJA = 23.2°C/W, θJCbottom = 5.8°C/W, θJCtop = 23.2°C/W, θJB = 6.7°C/W
WEIGHT = 1.1g, θ VALUES DETERMINED PER JEDEC 51-9, 51-12
ORDER INFORMATION
PART NUMBER
LTM8048EY#PBF
LTM8048IY#PBF
LTM8048IY
LTM8048MPY#PBF
LTM8048MPY
PAD OR BALL
FINISH
SAC305 (RoHS)
SAC305 (RoHS)
SnPb (63/37)
SAC305 (RoHS)
SnPb (63/37)
PART MARKING*
DEVICE
FINISH CODE
LTM8048Y
e1
LTM8048Y
e1
LTM8048Y
e0
LTM8048Y
e1
LTM8048Y
e0
PACKAGE TYPE
BGA
BGA
BGA
BGA
BGA
MSL RATING
3
3
3
3
3
TEMPERATURE RANGE (NOTE 3)
–40°C to 125°C
–40°C to 125°C
–40°C to 125°C
–55°C to 125°C
–55°C to 125°C
Consult Marketing for parts specified with wider operating temperature
ranges. *Device temperature grade is indicated by a label on the shipping
container. Pad or ball finish code is per IPC/JEDEC J-STD-609.
• Pb-free & Non-Pb-free Part Markings:
www.linear.com/leadfree
• Recommended LGA and BGA PCB Assembly and Manufacturing
Procedures:
www.linear.com/umodule/pcbassembly
• BGA Package and Tray Drawings:
www.linear.com/packaging/
8048fg
2 For more information www.linear.com/LTM8048







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