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LTM8001 - 36VIN, 5A ?Module Regulator with 5-Output Configurable LDO Array

LTM8001 - 36VIN, 5A ?Module Regulator with 5-Output Configurable LDO Array
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LTM8001 - 36VIN, 5A ?Module Regulator with 5-Output Configurable LDO Array - 1

■ Complete Step-Down Switch Mode Power Supply with Configurable Array of Five LDOs ■ Step-Down Switching Power Supply -Adjustable 10% Accurate Output Current Limit -Constant-Current, Constant-Voltage Operation - Wide Input Voltage Range: 6V to 36V ■ Configurable Output LDO Array - Five 1.1A Parallelable Outputs - Outputs Adjustable from 0V to 24V ■ FPGA, DSP, ASIC and Microprocessor Supplies ■ Servers and Storage Devices The LTM®8001 is a 36V|N, 5A step-down ^Module® 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 1.1 A 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 othertwo 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 x 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 RoHS compliant. XT, LT, LTC, LTM, pModule, Linear Technology and the Linear logo are registered trademarks ot Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents, including 7199560, 7321203. TVPicni nppucnTion 5A Output DC/DC MModule Converter TECHNOLOGY For more information www.linear.com/8001

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LTM8001 - 36VIN, 5A ?Module Regulator with 5-Output Configurable LDO Array - 2

ABSOLUTE mnximum Rnnnos TJMAX = 125°C, 6JA = 16.1°C/W eJcbottom = 5.99°C/W eJctop = 13.4°C/W eJB = 4.98°C/W 6 VALUES DETERMINED PER JEDEC 51-9, 51-12 ORD€R inFORffMTIOn Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container For more information on lead free part marking, go to: http://www.linear.com/leadfree/ This product is only offered in trays. For more information go to: http://www.linearcom/packaging/ ^^^J TECHNOLOGY

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LTM8001 - 36VIN, 5A ?Module Regulator with 5-Output Configurable LDO Array - 3

The • denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. RUN = 3V unless otherwise noted (Note 3). Buck Regulator ^^^J TECHNOLOGY

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LTM8001 - 36VIN, 5A ?Module Regulator with 5-Output Configurable LDO Array - 4

The • denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. RUN = 3V unless otherwise noted (Note 3). Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device Note 2: This uModule regulator includes overtemperature protection that is intended to protect the device during momentary overload conditions. Junction temperature will exceed 125°C when overtemperature protection is active....

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LTM8001 - 36VIN, 5A ?Module Regulator with 5-Output Configurable LDO Array - 5

TVPicni p€RFonmnnc€ CHnnnacRisTics (Tfl = 25°C unless otherwise noted. Configured per Table 1, where applicable.) Efficiency vs Output Current, Efficiency vs Output Current, Efficiency vs Output Current, Efficiency vs Output Current, Input Current vs Output Current, Input Current vs Output Current, Input Current vs Output Current, Input Current vs Output Current, Input Current vs Output Current,

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LTM8001 - 36VIN, 5A ?Module Regulator with 5-Output Configurable LDO Array - 6

TVPicni p€RFonmnnc€ CHnnnacRisTics (Tfl = 25°C unless otherwise noted. Configured per Table 1, where applicable.) Input Current vs Output Current, Minimum V|N0 vs Output Current, Minimum V|N0 vs Output Current, Input Current vs Output Current, Minimum V!N0 vs Output Current, Minimum V|N0 vs Output Current, Minimum V|N0 vs Output Current, Minimum V|N0 vs Output Current, Output Voltage vs Output Current,

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LTM8001 - 36VIN, 5A ?Module Regulator with 5-Output Configurable LDO Array - 7

TVPicni p€RFonmnnc€ CHnnnacRisTics (Tfl = 25°C unless otherwise noted. Configured per Table 1, where applicable.) ILIM Voltage vs Maximum IQUTO Output Current VINO Input Current vs Voltage, VOUTO Shorted Temperature Rise vs VOUTO Current, Buck Regulator, VQUTO = 2.5V Temperature Rise VSVOUTO Current, Buck Regulator, VQUTO = 3.3V Temperature Rise vs VOUTO Current, Buck Regulator, VQUTO = 5V Temperature Rise vs VOUTO Current, Buck Regulator, VQUTO = 8V Temperature Rise vs VOUTO Current, Buck Regulator, VQUTO = 12V Temperature Rise vs VOUTO Current, Buck Regulator, VQUTO = 18V Temperature Rise...

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LTM8001 - 36VIN, 5A ?Module Regulator with 5-Output Configurable LDO Array - 8

TVPicni p€RFonmnnc€ CHnnnacRisTics (Tfl = 25°C unless otherwise noted. Configured per Table 1, where applicable.) Voltage vs Output Current Voltage vs Output Current LDO Current Limit vs Input-to- Output Differential Voltage LDO Input Voltage Ripple Rejection TOTAL LDO OUTPUT CURRENT (A) LDO Input Voltage Ripple Rejection ^^^J TECHNOLOGY

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LTM8001 - 36VIN, 5A ?Module Regulator with 5-Output Configurable LDO Array - 9

TVPicni PCRFonmnncc CHnnnacRisTics (Tfl = 25°C unless otherwise noted. Configured per Table 1, where applicable.) LDO VB|AS Ripple Rejection V|N0 (Bank 1): The V|N0 bank supplies current to the LTM8001 's internal regulator and to the internal power switches. This pin must be locally bypassed with an ex- ternal, low ESR capacitor; see Table 1 for recommended GND (Bank 2): Tie these GND pins to a local ground plane below the LTM8001 and the circuit components. In most applications, the bulk of the heat flow out of the LTM8001 is through these pads, so the printed circuit design has a large...

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LTM8001 - 36VIN, 5A ?Module Regulator with 5-Output Configurable LDO Array - 10

the absolute maximum voltage rating of 6V through a resistor, provided the pin current does not exceed 100uA. Connect the adjust resistor from this pin to ground. The value of RFBO is given by the equation: COMP (Pin L6): Compensation Pin. This pin is generally not used. The LTM8001 is internally compensated, but some rare situations may arise that require a modifica- tion to the control loop. This pin connects directly to the input PWM comparator of the LTM8001. In most cases, no adjustment is necessary. If this function is not used, leave this pin open. RT (Pin L7): The RT pin is used to...

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