Datasheet LTM8001 (Analog Devices)

LTM8001 36VIN, 5A µModule Regulator with 5-Output Configurable LDO Array
FeaTures DescripTion
n
Complete Step-Down Switch Mode Power Supply
The LTM®8001 is a 36VIN, 5A step-down μModule® regu-
with Configurable Array of Five LDOs
lator with a 5-output configurable LDO array. Operating n
Step-Down Switching Power Supply
over an input voltage range of 6V to 36V, the LTM8001
– Adjustable 10% Accurate Output Current Limit
buck regulator supports an output voltage range of 1.2V
–Constant-Current, Constant-Voltage Operation
to 24V. Following the buck regulator is an array of five
– Wide Input Voltage Range: 6V to 36V
1.1A linear regulators whose outputs may be connected
– 1.2V to 24V Output Voltage
in parallel to accommodate a wide variety of load combi- n
Configurable Output LDO Array
nations. Three of these LDOs are tied to the output of the
– Five 1.1A Parallelable Outputs
buck regulator, while the other two are tied together to
– Outputs Adjustable from 0V to 24V
an undedicated input.
– Low Output Noise: 90μVRMS (100Hz to 1MHz)
The low profile package (3.42mm) enables utilization of n 15mm × 15mm × 3.42mm Surface Mount unused space on the bottom of PC boards for high density BGA Package point of load regulation. The LTM8001 is packaged in a thermally enhanced, compact (15mm × 15mm) and low
applicaTions
profile (3.42mm) overmolded ball grid array (BGA) pack- age suitable for automated assembly by standard surface n FPGA, DSP, ASIC and Microprocessor Supplies mount equipment. The LTM8001 is available with SnPb n Servers and Storage Devices (BGA) or RoHS compliant terminal finish. n RF Transceivers 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
V 1.8V IN45 VOUT0 1A VIN VIN0 V 1.2V OUT1 6V TO 36V 10µF LDO 1 1A 510k SET1 RUN V 1.1V OUT2 BIAS123 STEP-DOWN LDO 2 1.5A SET2 3.3V BIAS45 LTM8001 SWITCHING REGULATOR VOUT3 COMP LDO 3 SET3 SS 0.9V VOUT4 VREF LDO 4 1.5A SET4 ILIM V SYNC OUT5 + LDO 5 GND RT FBO SET5 4.7µF 4.7µF 2.2µF 470µF 45.3k 54.9k 121k 100µF 118k 19.6k 350kHz 8001 TA01 8001fd For more information www.linear.com/LTM8001 1 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Package Photo Revision History Typical Application Related Parts