LTC3118 datasheet(40/40 Pages) LINER

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LTC3118

3118fa

For more information www.linear.com/LTC3118

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LINEAR TECHNOLOGY CORPORATION 2015

LT 0915 REV A • PRINTED IN USA

LinearTechnology Corporation

1630 McCarthy Blvd., Milpitas, CA 95035-7417

(408)432-1900 ● FAX: (408) 434-0507 ● www.linear.com/LTC3118

relaTeD parTs

Typical applicaTion

PART NUMBER DESCRIPTION

COMMENTS

LTC3111

1.5A (IOUT), 15V Synchronous Buck-Boost DC/DC Converter

VIN = 2.5V to 15V, VOUT = 2.5V to 15V, IQ = 49µA, ISD < 1µA,

DFN and MSOP Packages

LTC3112

2.5A (IOUT), 15V Synchronous Buck-Boost DC/DC Converter

VIN = 2.7V to 15V, VOUT = 2.5V to 14V, IQ = 40μA, ISD < 1μA,

DFN and TSSOP Packages

LTC3113

3A (IOUT), 5V Synchronous Buck-Boost DC/DC Converter

VIN = 1.8V to 5.5V, VOUT = 1.8V to 5.25V, IQ = 30μA, ISD < 1μA,

DFN and TSSOP Packages

LTC3114-1

1A (IOUT), 40V Synchronous Buck-Boost DC/DC Converter

VIN = 2.2V to 40V, VOUT = 2.7V to 15V, IQ = 30µA, ISD < 3µA,

DFN and TSSOP Packages

LTC3115-1

2A (IOUT), 40V Synchronous Buck-Boost DC/DC Converter

VIN = 2.7V to 40V, VOUT = 2.7V to 40V, IQ = 30μA, ISD < 3μA,

DFN and TSSOP Packages

LTC3122

2.5A ISW, 3MHz, Synchronous Step-Up DC/DC Converter with

Output Disconnect, Burst Mode Operation, Up to 95% Efficiency

Operating Range VIN = 1.8V to 5.5V (500mV After Start-Up), VOUT = Up

to 15V, IQ = 25μA, ISD <1µA, 3mm × 4mm DFN and MSOP Packages

LTC3124

5A ISW, 3MHz, 2-Phase Synchronous Step-Up DC/DC

Converter, Output Disconnect, Burst Mode Operation,

Up to 95% Efficiency

Operating Range VIN = 1.8V to 5.5V (500mV After Start-Up), VOUT Up

to 15V, IQ = 25µA, ISD < 1µA, 3mm × 5mm DFN and TSSOP Packages

LTC3129

200mA (IOUT), 15V Synchronous Buck-Boost DC/DC Converter VIN = 2.42V to 15V, VOUT = 2.5V to 14V, IQ = 1.3μA, ISD = 10nA,

QFN and MSOP Packages

LTC4412

28V Low Loss PowerPath Controller in ThinSOT™

Operating Range 3V to 36V, IQ = 11µA, 6-Lead ThinSOT Package

LTC4417

Prioritized PowerPath Controller

VIN = 2.5V to 36V, –42V Reverse Protection, IQ = 28µA, ISD < 1µA,

QFN and SSOP Packages

12V VIN to 5V VOUT Converter with Capacitor Backup

Runs from VIN1 (Priority) in Normal Mode, VIN2 During Backup Event

10mF, 18V Back-Up Capacitor Supports

200mA Load for >1 Second

200ms/DIV

3118 TA05b

VIN2

10V/DIV

VIN1

10V/DIV

VOUT

5V/DIV

INDUCTOR

CURRENT

1A/DIV

768k

100k

402k

100k

40.2k

47nF

10.5V TO 14.5V

10nF

22µF

47µF

PGND

BAT-54

SCHOTTKY DIODE

POWER GOOD

INDICATORS

VCC BACK FED

FROM VOUT

FOR LOW VIN

OPERATION

22µF

10nF

10mF

CAPACITOR

BACKUP

22pF

LEAD ACID

BATTERY OR 12V

SYSTEM POWER

18V MAX, RUNS

DOWN TO 2.2V

4.7µF

BST1

BST2

VIN1

SW1

SW2

3118 TA05a

CM1

PGND

CM2

RUN1

CP1

CP2

VOUT

GND

V1GD

V2GD

PGD

CN2

CN1

VCC

SEL

MODE

VIN2

PGND

RUN2

LTC3118

1.8nF

3.3µH

0.1µF

40.2k

CAN’T RUN FROM VIN2 UNTIL VOUT STARTS UP

LTC3118 Datasheet(PDF) 40 Page - Linear Technology

LTC3118 Datasheet(HTML) 40 Page - Linear Technology

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