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Linear Technology Electronic Components Datasheet

LTM8003 Datasheet

3.5A Step-Down Silent Switcher uModule Regulator

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FEATURES
nn Complete Step-Down Switch Mode Power Supply
nn Low Noise Silent Switcher® Architecture
nn Wide Input Voltage Range: 3.4V to 40V
nn Wide Output Voltage Range: 0.97V to 18V
nn Wide Temperature Range: –40°C to 150°C (H-Grade)
nn 3.5A Continuous Output Current, 6A peak
nn FMEA Compliant Pinout (LTM8003-3.3)
Output Stays at or Below Regulation Voltage During
Adjacent Pin Short or if a Pin Is Left Floating
nn CISPR25 Class 5 Compliant
nn Selectable Switching Frequency: 200kHz to 3MHz
nn External Synchronization
nn Low Quiescent Current: 25µA (5VOUT)
nn Tiny, Low Profile 6.25mm × 9mm × 3.32mm RoHS
Compliant BGA Package
APPLICATIONS
nn Automotive Battery Regulation
nn Power for Portable Products
nn Distributed Supply Regulation
nn Industrial Supplies
nn Wall Transformer Regulation
LTM8003
40VIN, 3.5A Step-Down
Silent Switcher µModule
Regulator
DESCRIPTION
The LTM®8003 is a 40VIN, 6A peak, 3.5A continuous
step-down Silent Switcher µModule® (power module)
regulator. The Silent Switcher architecture minimizes EMI
while delivering high efficiency at frequencies up to 3MHz.
Included in the package are the switching controller, power
switches, inductor, and all support components. Operating
over an input voltage range of 3.4V to 40V, the LTM8003
supports an output voltage range of 0.97V to 18V and a
switching frequency range of 200kHz to 3MHz, each set by
a single resistor. Only the input and output filter capacitors
are needed to finish the design.
The low profile package enables utilization of unused
space on the bottom of PC boards for high density point of
load regulation. The LTM8003 is packaged in a thermally
enhanced, compact over-molded ball grid array (BGA) pack-
age suitable for automated assembly by standard surface
mount equipment. The LTM8003 is RoHS compliant.
All registered trademarks and trademarks are the property of their respective owners.
TYPICAL APPLICATION
5VOUT from 7VIN to 40VIN Step-Down Converter
VIN
7V TO 40V
VIN
RUN
4.7µF
41.2k
1MHz
RT
LTM8003
VOUT
BIAS
GND SYNC
24.3k
FB
47µF
VOUT
5V
3.5A
6A PEAK
8003 TA01a
PINS NOT USED IN THIS CIRCUIT: TR/SS, PG
Document Feedback
For more information www.analog.com
Efficiency, VOUT = 5V
95
12VIN
85
75
65
55
0
123
LOAD CURRENT (A)
4
8003 TA01
Rev E
1


Linear Technology Electronic Components Datasheet

LTM8003 Datasheet

3.5A Step-Down Silent Switcher uModule Regulator

No Preview Available !

LTM8003
ABSOLUTE MAXIMUM RATINGS
(Notes 1, 2)
VIN, RUN, PG Voltage ............................................... 42V
VOUT, BIAS Voltage .................................................. 19V
FB, TR/SS Voltage ..................................................... 4V
SYNC Voltage ............................................................. 6V
Maximum Internal Temperature (I-Grade) ............ 125°C
Maximum Internal Temperature (H-Grade) .......... 150°C
Storage Temperature (I-Grade) ............................ 125°C
Storage Temperature (H-Grade) ............ –50°C to 150°C
Peak Reflow Solder Body Temperature ................ 250°C
PIN CONFIGURATION
TOP VIEW
ADJUSTABLE VERSION
SYNC TR/SS
A
GND
B
GND
RT
RUN
PG
C
D
BANK 1 GND
E
FB
BANK2
VIN
NC
F
BIAS
G
BANK 3 VOUT
H
123456
BGA PACKAGE
48-LEAD (9mm × 6.25mm × 3.32mm) BGA PACKAGE
TJMAX = 150°C, θJA = 24.7°C/W, θJCbottom = 4.5°C/W
θJCtop = 22.3°C/W, θJB = 4.2°C/W, WEIGHT = 0.5g
θ VALUES DETERMINED PER JEDEC51-9, 51-12
TOP VIEW
FIXED OUTPUT VERSION
SYNC TR/SS
A
GND
B
PG
C
D
BANK 1 GND
E
GND
RT
RUN
BANK2
VIN
NC
F
BIAS
G
H
BANK 3 VOUT
123456
BGA PACKAGE
48-LEAD (9mm × 6.25mm × 3.32mm) BGA PACKAGE
TJMAX = 150°C, θJA = 24.7°C/W, θJCbottom = 4.5°C/W
θJCtop = 22.3°C/W, θJB = 4.2°C/W, WEIGHT = 0.5g
θ VALUES DETERMINED PER JEDEC51-9, 51-12
ORDER INFORMATION
PART NUMBER
TERMINAL FINISH
PART MARKING*
DEVICE
FINISH CODE
PACKAGE
TYPE
MSL
RATING
TEMPERATURE RANGE
LTM8003IY#PBF
SAC305 (RoHS)
LTM8003
e1
BGA
3 –40°C to 125°C
LTM8003HY#PBF
SAC305 (RoHS)
LTM8003
e1
BGA
3 –40°C to 150°C
LTM8003IY
SnPb (63/37)
LTM8003
e0
BGA
3 –40°C to 125°C
LTM8003HY
SnPb (63/37)
LTM8003
e0
BGA
3 –40°C to 150°C
LTM8003IY-3.3#PBF
SAC305 (RoHS) LTM8003-3.3
e1
BGA
3 –40°C to 125°C
LTM8003HY-3.3#PBF
SAC305 (RoHS) LTM8003-3.3
e1
BGA
3 –40°C to 150°C
• Device temperature grade is indicated by a label on the shipping container.
• Pad or ball finish code is per IPC/JEDEC J-STD-609.
BGA Package and Tray Drawings
• This product is not recommended for second side reflow.
This product is moisture sensitive. For more information, go to
Recommended BGA PCB Assembly and Manufacturing Procedures.
Rev E
2 For more information www.analog.com


Part Number LTM8003
Description 3.5A Step-Down Silent Switcher uModule Regulator
Maker Linear
Total Page 30 Pages
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