LTM8001

1

8001f

For more information www.linear.com/8001

TYPICAL APPLICATION

FEATURES

DESCRIPTION

Regulator with 5-Output

Configurable LDO Array

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 RoHS compliant.

APPLICATIONS

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

n

15mm

× 15mm × 3.42mm Surface Mount

BGA Package

n

FPGA, DSP, ASIC and Microprocessor Supplies

n

Servers and Storage Devices

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.

5A Output DC/DC µModule Converter

118k

350kHz

SET5

LDO 5

FBO

STEP-DOWN

SWITCHING

REGULATOR

SET4

LDO 4

SET3

BIAS123

BIAS45

COMP

SS

ILIM

SYNC

LDO 3

19.6k

RT

GND

10µF

510k

3.3V

SET2

LDO 2

SET1

1.2V

1A

1.1V

1.5A

0.9V

1.5A

1.8V

1A

RUN

6V TO 36V

LTM8001

LDO 1

45.3k

4.7µF

4.7µF

2.2µF

54.9k

121k

470µF

8001 TA01

100µF

+