LTM8001
36V , 5A µModule
IN
Regulator with 5-Output
Configurable LDO Array
FEATURES
DESCRIPTION
The LTM®8001 is a 36V , 5A step-down μModule® regu-
n
Complete Step-Down Switch Mode Power Supply
IN
with Configurable Array of Five LDOs
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.
n
Step-Down Switching Power Supply
n
Adjustable 10% Accurate Output Current Limit
n
Constant-Current, Constant-Voltage Operation
n
Wide Input Voltage Range: 6V to 36V
1.2V to 24V Output Voltage
n
n
Configurable Output LDO Array
n
Five 1.1A Parallelable Outputs
n
Outputs Adjustable from 0V to 24V
n
Low Output Noise: 90μV
(100Hz to 1MHz)
RMS
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.
n
15mm × 15mm × 3.42mm Surface Mount
BGA Package
APPLICATIONS
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FPGA, DSP, ASIC and Microprocessor Supplies
n
Servers and Storage Devices
n
RF Transceivers
All registered trademarks and trademarks are the property of their respective owners. Protected
by U.S. patents, including 7199560, 7321203.
TYPICAL APPLICATION
5A Output DC/DC µModule Converter
1.8V
1A
1.2V
1A
V
IN45
V
V
OUT0
V
IN
V
IN0
OUT1
6V TO 36V
LDO 1
LDO 2
LDO 3
LDO 4
LDO 5
10µF
3.3V
SET1
510k
1.1V
1.5A
RUN
V
OUT2
SET2
BIAS123
BIAS45
COMP
SS
V
ILIM
STEP-DOWN
SWITCHING
REGULATOR
LTM8001
V
OUT3
SET3
0.9V
1.5A
V
OUT4
SET4
REF
V
OUT5
SET5
+
SYNC
GND
RT
FBO
19.6k
4.7µF
45.3k
4.7µF
54.9k
2.2µF
121k
470µF
100µF
118k
350kHz
8001 TA01
Rev. F
1
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