LTM8055

1

8055fb

For more information www.linear.com/LTM8055

TYPICAL APPLICATION

FEATURES

DESCRIPTION

µModule Regulator

(micromodule) regulator. Included in the package are the

switchingcontroller,powerswitches,inductorandsupport

components. A resistor to set the switching frequency, a

resistor divider to set the output voltage, and input and

output capacitors are all that are needed to complete the

design. Other features such as input and output average

current regulation may be implemented with just a few

components. The LTM8055 operates over an input volt-

age range of 5V to 36V, and can regulate output voltages

between 1.2V and 36V. The SYNC input and CLKOUT

output allow easy synchronization.

The LTM8055 is housed in a compact overmolded ball

gridarray(BGA)packagesuitableforautomatedassembly

by standard surface mount equipment. The LTM8055 is

RoHS compliant.

Buck-Boost Selection Table

LTM8054

LTM8055

LTM8056

36

36

58

40

40

60

40

40

60

5.4

8.5

5.5

Package

15 × 11.25mm ×

3.42mm BGA

15 × 15mm × 4.92mm BGA

Pin and Function Compatible

APPLICATIONS

n

Complete Buck-Boost Switch Mode Power Supply

n

n

Wide Input Voltage Range: 5V to 36V

n

n

n

n

Up to 97.5% Efficient

n

Adjustable Input and Output Average Current Limits

n

Input and Output Current Monitors

n

Parallelable for Increased Output Current

n

Wide Output Voltage Range: 1.2V to 36V

n

Selectable Switching Frequency: 100kHz to 800kHz

n

Synchronization from 200kHz to 700kHz

n

15mm × 15mm × 4.92mm BGA Package

n

High Power Battery-Operated Devices

n

Industrial Control

n

Solar Powered Voltage Regulator

n

Solar Powered Battery Charging

L

, LT, LTC, LTM, Linear Technology, the Linear logo, µModule and Burst Mode are registered

trademarks of Analog Devices, Inc. All other trademarks are the property of their respective

owners.

0

10

6

4

8

2

0

98

96

92

88

94

90

86

84

8055 TA01b

40

20

10

30

OUTPUT

CURRENT

EFFICIENCY

GND

LL MODE

LTM8055

CLKOUT

FB

RUN

CTL

SS

SYNC

COMP

RT

11.0k

8055 TA01a

22µF

25V

68µF

12V

4.7µF

50V

×2

5V TO 36V

36.5k

100k