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LTM4653IY

Description
DC DC CONVERTER 0.5-54.5V
CategoryPower/power management   
File Size1MB,32 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
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LTM4653IY Overview

DC DC CONVERTER 0.5-54.5V

LTM4653IY Parametric

Parameter NameAttribute value
typeNon-isolated PoL module
Number of outputs1
Voltage - Input (minimum)3.1V
Voltage - input (maximum)58V
Voltage - Output 10.5 ~ 54.5 V
Voltage - Output 2-
Voltage - Output 3-
Voltage - Output 4-
Current - Output (maximum)4A
application-
characteristicOCP,OTP,OVP,UVLO
Operating temperature-40°C ~ 125°C
efficiency-
Installation typesurface mount
Package/casing77-BBGA module
size/dimensions0.59" long x 0.35" wide x 0.21" high (15.0mm x 9.0mm x 5.2mm)
Supplier device packaging77-BGA(15x9)
LTM4653
EN55022B Compliant 58V, 4A
Step-Down DC/DC
μModule
Regulator
FEATURES
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DESCRIPTION
The
LTM
®
4653
is an ultralow noise 58V, 4A DC/DC step-
down μModule
®
regulator designed to meet the radiated
emissions requirements of EN55022. Conducted emis-
sion requirements can be met by adding standard filter
components. Included in the package are the switching
controller, power MOSFETs, inductor, filters and support
components.
Operating over an input voltage range of 3.1V to 58V, the
LTM4653 supports an output voltage range of 0.5V to
94% of V
IN
, and a switching frequency range of 250kHz
to 3MHz (400kHz default), each set by a single resistor.
For high load currents, the LTM4653 can be paralleled in
PolyPhase
®
operation and synchronized to an external
clock. Only the bulk input and output filter capacitors are
needed to finish the design.
The LTM4653 is offered in a 15mm
×
9mm
×
5.01mm
BGA package with SnPb or RoHS compliant terminal finish.
All registered trademarks and trademarks are the property of their respective owners. Protected
by U.S. Patents, including 5481178, 5705919, 5847554, 6580258.
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Complete Low EMI Switch Mode Power Supply
EN55022 Class B Compliant
Wide Input Voltage Range: 3.1V to 58V
Up to 4A Output Current
Output Voltage Range: 0.5V ≤ V
OUT
≤ 0.94 • V
IN
±1.67% Total DC Output Voltage Error Over Line,
Load and Temperature (–40°C to 125°C)
Parallel and Current Share with Multiple LTM4653s
Analog Output Current Indicator
Programmable Input Voltage Limiting
Constant-Frequency Current Mode Control
Power Good Indicator and Programmable Soft-Start
Overcurrent/Overvoltage/Overtemperature Protection
15mm × 9mm × 5.01mm BGA Package
Avionics, Industrial Control and Test Equipment
Video, Imaging and Instrumentation
48V Telecom and Network Power Supplies
RF Systems
APPLICATIONS
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TYPICAL APPLICATION
4A, 24V Output Low EMI DC/DC μModule Regulator
with Analog Output Current Indicator
V
IN
28V TO 58V
I
OUT
4.7 F
V
IN
SV
IN
V
D
4.7 F
RUN
INTV
CC
VINREG
10nF
499
124k
COMPa
LTM4653
IMONa
IMONb
f
SET
GND
ISETa ISETb
4653 TA01a
Radiated Emission Scan in a 10m Chamber
LTM4653 Delivering 24V
OUT
at 3.5A, from 48V
IN
24V
OUT
,
UP TO 4A
AMPLITUDE (dBµV/m)
70
60
50
40
30
20
10
0
–10
30
130
230
330
[1] HORIZONTAL
[2] VERTICAL
QPK LIMIT
+ FORMAL
730
630
430
530
FREQUENCY (MHz)
830
930 1000
4653 TA01b
V
OUT
V
OSNS
LOAD
SGND
PGND
MEAS DIST 10m
SPEC DIST 10m
10µF
×2
ANALOG OUTPUT
CURRENT INDICATOR
V
IMON
= 0.25 • I
OUT
PINS NOT USED IN
THIS CIRCUIT:
CLKIN, PGOOD, COMPb
PGDFB, SW, EXTV
CC
TEMP
+
, TEMP
, NC
481k
Document Feedback
For more information
www.analog.com
1
Rev 0

LTM4653IY Related Products

LTM4653IY LTM4653EY#PBF LTM4653IY#PBF
Description DC DC CONVERTER 0.5-54.5V DC DC CONVERTER 0.5-54.5V DC DC CONVERTER 0.5-54.5V
type Non-isolated PoL module Non-isolated PoL module Non-isolated PoL module
Number of outputs 1 1 1
Voltage - Input (minimum) 3.1V 3.1V 3.1V
Voltage - input (maximum) 58V 58V 58V
Voltage - Output 1 0.5 ~ 54.5 V 0.5 ~ 54.5 V 0.5 ~ 54.5 V
Current - Output (maximum) 4A 4A 4A
characteristic OCP,OTP,OVP,UVLO OCP,OTP,OVP,UVLO OCP,OTP,OVP,UVLO
Operating temperature -40°C ~ 125°C -40°C ~ 125°C -40°C ~ 125°C
Installation type surface mount surface mount surface mount
Package/casing 77-BBGA module 77-BBGA module 77-BBGA module
size/dimensions 0.59" long x 0.35" wide x 0.21" high (15.0mm x 9.0mm x 5.2mm) 0.59" long x 0.35" wide x 0.21" high (15.0mm x 9.0mm x 5.2mm) 0.59" long x 0.35" wide x 0.21" high (15.0mm x 9.0mm x 5.2mm)
Supplier device packaging 77-BGA(15x9) 77-BGA(15x9) 77-BGA(15x9)
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