LTC3411AEMS View Datasheet(PDF) - Linear Technology

Part Name

Description

Manufacturer

LTC3411AEMS

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

Linear Technology 

LTC3411A

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

otherwise noted.

Forced Continuous Mode

Start-Up from Shutdown

Start-Up from Shutdown

SW

2V/DIV

SHDN/RT

2V/DIV

VOUT

50mV/DIV

AC COUPLED

IL

200mA/DIV

VIN = 3.6V

VOUT = 1.8V

ILOAD = 80mA

2µs/DIV

3411A G19

VOUT

1V/DIV

IL

1A/DIV

VIN = 3.6V

VOUT = 1.8V

ILOAD = 0A

200µs/DIV

Start-Up from Shutdown with

a Prebiased Output (Forced

Continuous Mode)

Load Step

SHDN/RT

2V/DIV

3411A G20

VOUT

1V/DIV

IL

1A/DIV

VIN = 3.6V

VOUT = 1.8V

ILOAD = 1.25A

200µs/DIV

Load Step

3411A G21

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

3411A 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

3411A G25

VIN = 3.6V

VOUT = 1.8V

ILOAD = 0A

40µs/DIV

3411A G23

IL

1A/DIV

ILOAD

1A/DIV

40µs/DIV

VIN = 3.6V

VOUT = 1.8V

ILOAD = 50mA to 1.25A

Burst Mode OPERATION

3411A G24

VOUT Short to VIN (Forced

Continuous Mode)

VOUT

1V/DIV

IL

500mA/DIV

3411A G26

VIN = 3.6V

VOUT = 1.8V

ILOAD = 0A

40µs/DIV

3411A G27

3411afd

6

For more information www.linear.com/LTC3411A

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