LTC3622/

LTC3622-2/LTC3622-23/5

24

Rev D

For more information www.analog.com

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ANALOG DEVICES, INC. 2014-2018

09/18(D)

www.analog.com

RELATED PARTS

TYPICAL APPLICATION

5V/3.3V Series Output, Burst Mode Operation

PART NUMBER

DESCRIPTION

COMMENTS

LTC3621/

LTC3621-2

1A, 17V, 1/2.25MHz, Synchronous Step-Down Regulator 95% Efficiency, VIN: 2.7V to 17V, VOUT(MIN) = 0.6V, IQ = 3.5µA, ISD < 1µA,

2mm × 3mm DFN-6, MSOP-8E

LTC3600

1.5A, 15V, 4MHz Synchronous Rail-to-Rail Single

Resistor Step-Down Regulator

95% Efficiency, VIN: 4V to 15V, VOUT(MIN) = 0V, IQ = 700µA, ISD < 1µA,

3mm × 3mm DFN-12, MSOP-12E Packages

LTC3601

15V, 1.5A (IOUT) 4MHz Synchronous Step-Down

DC/DC Converter

95% Efficiency, VIN: 4.5V to 15V, VOUT(MIN) = 0.6V, IQ = 300µA, ISD < 1µA,

4mm × 4mm QFN-20, MSOP-16E Packages

LTC3603

15V, 2.5A (IOUT) 3MHz Synchronous Step-Down

DC/DC Converter

95% Efficiency, VIN: 4.5V to 15V, VOUT(MIN) = 0.6V, IQ = 75µA, ISD < 1µA,

4mm × 4mm QFN-20, MSOP-16E Packages

LTC3633A

20V, Dual 3A (IOUT) 4MHz Synchronous Step-Down

DC/DC Converter

95% Efficiency, VIN: 3.6V to 20V, VOUT(MIN) = 0.6V, IQ = 500µA, ISD < 15µA,

4mm × 5mm QFN-28, TSSOP-28E Packages. A Version Up to 20VIN

LTC3605A

20V, 5A (IOUT) 4MHz Synchronous Step-Down

DC/DC Converter

95% Efficiency, VIN: 4V to 20V, VOUT(MIN) = 0.6V, IQ = 2mA, ISD < 15µA,

4mm × 4mm QFN-24 Package. A Version Up to 20VIN

LTC3604

15V, 2.5A (IOUT) 4MHz Synchronous Step-Down

DC/DC Converter

95% Efficiency, VIN: 3.6V to 15V, VOUT(MIN) = 0.6V, IQ = 300µA, ISD < 14µA,

3mm × 3mm QFN-16, MSOP-16E Packages

LTC3624/

LTC3624-2

2A, 17V, 1MHz/2.25MHz Synchronous Step-Down

Regulator

95% Efficiency, VIN: 2.7V to 17V, VOUT(MIN) = 0.6V, IQ = 3.5µA, ISD < 1µA,

3mm × 3mm DFN-8 Package

604k

604k

134k

3622 TA03

82.5k

22pF

22pF

VIN

5V TO 17V

VOUT1

5V

1A

VOUT2

3.3V

1A

COUT1

22µF

COUT2

22µF

VIN1

INTVCC

MODE/SYNC

PHASE

ILIM

VIN2

RUN1

RUN2

SW1

SW2

FB1

3.3µH

10k

1µH

FB2

GND

PGOOD1 PGOOD2

LTC3622-2

CIN

10µF

C1

1µF

INTVCC