LTC3541 データシートの表示（PDF） - Linear Technology

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LTC3541

High Efficiency Buck + VLDO Regulator

Linear Technology 

LTC3541

TYPICAL APPLICATIONS

Dual Output Using Minimal External Components with VOUT2 Controlled by External Logic

Signal, Buck in Burst Mode Operation for High Efficiency Down to Low Load Currents

VOUT1

2.5V

200mA

VIN

3.2V TO 4.2V

2.2µH

VIN

ENVLDO ENBUCK

SW

LVOUT

LVIN LTC3541

22pF 154k

LFB

10µF

BUCKFB

MODE

73k

PGND

GND

10µF

576k

VOUT2

1.8V

300mA

2.2µF

165k

3541 TA04a

VOUT

2V/DIV

LVOUT

2V/DIV

VIN

2V/DIV

IVOUT = 200mA

ILVOUT = 300mA

4ms/DIV

3541 TA04b

Dual Output Using Minimal External Components with VOUT1 Controlled by External Logic

Signal, Buck in Burst Mode Operation for High Efficiency Down to Low Load Currents

VIN

2.9V TO 4.2V

VOUT1

1.8V

200mA

10µF

10µF

2.2µH

VIN

ENVLDO ENBUCK

SW

LVOUT

LVIN LTC3541

22pF 143k

LFB

BUCKFB

MODE

115k PGND

GND

412k

VOUT2

1.5V

300mA

2.2µF

150k

3541 TA05a

VOUT

2V/DIV

LVOUT

2V/DIV

VIN

2V/DIV

IVOUT = 200mA

ILVOUT = 30mA

4ms/DIV

3541 TA05b

For more information www.linear.com/LTC3541

3541fb

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