LTC3565(RevA) 데이터 시트보기 (PDF) - Linear Technology

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LTC3565
(Rev.:RevA)

1.25A, 4MHz, Synchronous Step-Down DC/DC Converter

Linear Technology 

LTC3565

Typical Performance Characteristics TJ = 25°C, VIN = 3.6V, fO = 1MHz, unless

otherwise noted.

Start-Up from Shutdown with

a Prebiased Output (Forced

Continuous Mode)

Load Step

Load Step

VOUT

1V/DIV

VOUT

100mV/DIV

AC COUPLED

VOUT

100mV/DIV

AC COUPLED

IL

500mA/DIV

200µs/DIV

VIN = 3.6V

PREBIASED VOUT = 3V, VOUT = 1.8V

ILOAD = 0A

3565 G22

IL

1A/DIV

ILOAD

1A/DIV

40µs/DIV

VIN = 3.6V

VOUT = 1.8V

ILOAD = 0A to 1.25A

Burst Mode OPERATION

Load Step

VOUT

100mV/DIV

AC COUPLED

IL

1A/DIV

ILOAD

1A/DIV

40µs/DIV

VIN = 3.6V

VOUT = 1.8V

ILOAD = 250mA to 1.25A

Burst Mode OPERATION

VOUT Short to Ground

VOUT

1V/DIV

IL

2A/DIV

3565 G25

VIN = 3.6V

VOUT = 1.8V

ILOAD = 0A

40µs/DIV

3565 G23

IL

1A/DIV

ILOAD

1A/DIV

40µs/DIV

VIN = 3.6V

VOUT = 1.8V

ILOAD = 50mA to 1.25A

Burst Mode OPERATION

3565 G24

VOUT Short to VIN (Forced

Continuous Mode)

VOUT

1V/DIV

IL

500mA/DIV

3565 G26

VIN = 3.6V

VOUT = 1.8V

ILOAD = 0A

40µs/DIV

3565 G27

3565fa



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