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Linear Technology Electronic Components Datasheet

LTM8001 Datasheet

5A uModule Regulator

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Features
n Complete Step-Down Switch Mode Power Supply
with Configurable Array of Five LDOs
n Step-Down Switching Power Supply
– Adjustable 10% Accurate Output Current Limit
–Constant-Current, Constant-Voltage Operation
– Wide Input Voltage Range: 6V to 36V
– 1.2V to 24V Output Voltage
n Configurable Output LDO Array
– Five 1.1A Parallelable Outputs
– Outputs Adjustable from 0V to 24V
– Low Output Noise: 90μVRMS (100Hz to 1MHz)
n 15mm × 15mm × 3.42mm Surface Mount
BGA Package
Applications
n FPGA, DSP, ASIC and Microprocessor Supplies
n Servers and Storage Devices
n RF Transceivers
LTM8001
36VIN, 5A µModule
Regulator with 5-Output
Configurable LDO Array
Description
The LTM®8001 is a 36VIN, 5A step-down μModule® regu-
lator with a 5-output configurable LDO array. Operating
over an input voltage range of 6V to 36V, the LTM8001
buck regulator supports an output voltage range of 1.2V
to 24V. Following the buck regulator is an array of five
1.1A linear regulators whose outputs may be connected
in parallel to accommodate a wide variety of load combi-
nations. Three of these LDOs are tied to the output of the
buck regulator, while the other two are tied together to
an undedicated input.
The low profile package (3.42mm) enables utilization of
unused space on the bottom of PC boards for high density
point of load regulation. The LTM8001 is packaged in a
thermally enhanced, compact (15mm × 15mm) and low
profile (3.42mm) overmolded ball grid array (BGA) pack-
age suitable for automated assembly by standard surface
mount equipment. The LTM8001 is available with SnPb
(BGA) or RoHS compliant terminal finish.
L, LT, LTC, LTM, µModule, Linear Technology and the Linear logo are registered trademarks of
Linear Technology Corporation. All other trademarks are the property of their respective owners.
Protected by U.S. Patents, including 7199560, 7321203.
Typical Application
5A Output DC/DC µModule Converter
VIN
6V TO 36V
10µF
3.3V
510k
VIN45
VIN0
RUN
BIAS123
BIAS45 LTM8001
COMP
SS
VREF
ILIM
SYNC
GND
VOUT0
LDO 1
VOUT1
SET1
STEP-DOWN
LDO 2
VOUT2
SET2
SWITCHING
REGULATOR
LDO 3
VOUT3
SET3
LDO 4
VOUT4
SET4
RT
FBO
LDO 5
VOUT5
SET5
118k 19.6k
350kHz
4.7µF
45.3k
4.7µF
54.9k
2.2µF
121k
For more information www.linear.com/LTM8001
1.8V
1A
1.2V
1A
1.1V
1.5A
0.9V
1.5A
+
470µF
100µF
8001 TA01
8001fd
1


Linear Technology Electronic Components Datasheet

LTM8001 Datasheet

5A uModule Regulator

No Preview Available !

LTM8001
Absolute Maximum Ratings
(Note 1)
VIN0............................................................................40V
VIN45, BIAS45............................................................25V
BIAS123.....................................................................25V
FB0, RT, COMP, ILIM, VREF..........................................3V
VOUT0-5......................................................................25V
RUN, SYNC, SS............................................................6V
SET1-5 (Relative to VOUT1-5, Respectively).............±0.3V
Current Into SET1-5.............................................. ±10mA
Current Into RUN Pin.............................................100µA
Maximum Junction Temperature (Notes 2, 3)........ 125°C
Peak Solder Reflow Body Temperature.................. 245°C
Storage Temperature.............................. –55°C to 125°C
Pin Configuration
TOP VIEW
VOUT4 SET4 VOUT3 SET3 SET2 VOUT2
VOUT511
10
SET5 9
BIAS45
BIAS123 8
VIN45 7
BANK 3 6
5
VOUT0
BANK 4
4
GND
BANK 2
VREF
SYNC
SS
3
2
1
VOUT1
SET1
ILIM
RT
COMP
FBO
RUN
VIN0
BANK 1
ABCDE FGHJ KL
BGA PACKAGE
121 PADS (15mm × 15mm × 3.42mm)
TJMAX = 125°C, θJA = 16.1°C/W, θJCbottom = 5.99°C/W, θJCtop = 13.4°C/W, θJB = 4.98°C/W
θ VALUES DETERMINED PER JEDEC 51-9, 51-12
WEIGHT = 1.8 GRAMS
Order Information
PART NUMBER
LTM8001EY#PBF
LTM8001IY#PBF
LTM8001IY
LTM8001MPY#PBF
LTM8001MPY
PAD OR BALL FINISH
SAC305 (RoHS)
SAC305 (RoHS)
SnPb (63/37)
SAC305 (RoHS)
SnPb (63/37)
PART MARKING*
DEVICE
FINISH CODE
LTM8001Y
e1
LTM8001Y
e1
LTM8001Y
e0
LTM8001Y
e1
LTM8001Y
e0
PACKAGE
TYPE
BGA
BGA
BGA
BGA
BGA
MSL
RATING
3
3
3
3
3
TEMPERATURE RANGE
(SEE NOTE 2)
–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.
Terminal Finish Part Marking:
www.linear.com/leadfree
Recommended LGA and BGA PCB Assembly and Manufacturing
Procedures:
www.linear.com/umodule/pcbassembly
LGA and BGA Package and Tray Drawings:
www.linear.com/packaging
8001fd
2 For more information www.linear.com/LTM8001


Part Number LTM8001
Description 5A uModule Regulator
Maker Linear Technology
Total Page 28 Pages
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