LTC3111 datasheet(7/32 Pages) LINER

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LTC3111

3111fa

For more information www.linear.com/LTC3111

TYPICAL PERFORMANCE CHARACTERISTICS

5VIN to 5VOUT Burst to PWM

Response

12VIN to 5VOUT Burst Mode VOUT

Ripple

12VIN to 5VOUT PWM VOUT Ripple

7.5VIN to 5VOUT Start-Up

Response

1.5MHz SYNC Signal Capture and

Release

12VIN to 5VOUT SW1 and SW2

Waveforms

3VIN to 5VOUT 0.05A to 0.25A

Load Response

5VIN to 5VOUT 0.05A to 0.5A

Load Response

12VIN to 5VOUT 0.05A to 0.5A

Load Response

TA = 25°C, VIN = 5V, VOUT = 5V, unless otherwise specified

VOUT

200mV/DIV

INDUCTOR

CURRENT

500mA/DIV

LOAD

CURRENT

200mA/DIV

500µs/DIV

FRONT PAGE APPLICATION

3111 G24

VOUT

200mV/DIV

INDUCTOR

CURRENT

500mA/DIV

LOAD

CURRENT

500mA/DIV

500µs/DIV

FRONT PAGE APPLICATION

3111 G25

VOUT

500mV/DIV

INDUCTOR

CURRENT

1A/DIV

LOAD

CURRENT

500mA/DIV

500µs/DIV

FRONT PAGE APPLICATION

3111 G26

VOUT

200mV/DIV

PWM/SYNC

5V/DIV

INDUCTOR

CURRENT

500mA/DIV

500µs/DIV

ILOAD = 10mA

L = 4.7µH

COUT = 22µF

3111 G27

VOUT

200mV/DIV

INDUCTOR

CURRENT

500mA/DIV

20µs/DIV

ILOAD = 50mA

L = 4.7µH

COUT = 22µF

3111 G28

VOUT

50mV/DIV

INDUCTOR

CURRENT

500mA/DIV

1µs/DIV

ILOAD = 500mA

L = 4.7µH

COUT = 22µF

3111 G29

VOUT

2V/DIV

INDUCTOR

CURRENT

1A/DIV

RUN

5V/DIV

500µs/DIV

ILOAD = 500mA

L = 4.7µH

COUT = 22µF

3111 G30

INDUCTOR

CURRENT

500mA/DIV

PWM/SYNC

5V/DIV

VOUT

200mV/DIV

100µs/DIV

3111 G31

INDUCTOR

CURRENT

500mA/DIV

SW1

10V/DIV

SW2

5V/DIV

1µs/DIV

3111 G32

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