LTC3404 datasheet(4/16 Pages) LINER

номер детали	LTC3404

подробное описание детали	1.4MHz High Efficiency Monolithic Synchronous Step-Down Regulator

PDF	16 Pages

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производитель	LINER [Linear Technology]

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LTC3404

TYPICAL PERFOR A CE CHARACTERISTICS

Oscillator Frequency

vs Temperature

Efficiency vs Output Current

TEMPERATURE (

°C)

–50

0.814

0.809

0.804

0.799

0.794

0.789

0.784

3404 G05

–25

100

125

VIN = 3.6V

Oscillator Frequency

vs Supply Voltage

INPUT VOLTAGE (V)

0.5

0.6

0.7

5678

3404 G09

0.4

0.3

0.1

0.2

0.9

0.8

SYNCHRONOUS

SWITCH

MAIN

SWITCH

Reference Voltage

vs Temperature

Output Voltage vs Load Current

RDS(ON) vs Input Voltage

RDS(ON) vs Temperature

DC Supply Current

vs Input Voltage

TEMPERATURE (

°C)

–50

–25

0.3

0.4

0.6

0.7

0.8

100

1.2

3404 G10

0.5

125

0.9

1.0

1.1

VIN = 3V

VIN = 5V

SYNCHRONOUS SWITCH

MAIN SWITCH

OUTPUT CURRENT (mA)

0.1

100

1000

3404 G04

VIN = 3V

VIN = 6V

VOUT = 1.8V

L = 4.7

µH

VIN = 4.2V

VIN = 3.6V

OUTPUT CURRENT (mA)

100

0.1

100

1000

3404 G4a

VIN = 6V

VIN = 3.6V

VOUT = 3.1V

L = 4.7

µH

VIN = 4.2V

Efficiency vs Output Current

TEMPERATURE (

°C)

–50

1.55

1.50

1.45

1.40

1.35

1.30

1.25

100

3404 G06

–25

125

VIN = 3.6V

SUPPLY VOLTAGE (V)

1.25

1.35

1.30

3404 G07

1.55

1.50

1.45

1.40

LOAD CURRENT (mA)

1.75

1.76

1.77

1.78

1.80

1.81

1.82

200

400

3404 G08

1.79

600

800

1.83

PULSE SKIPPING MODE

VIN = 3.6V

L = 4.7

µF

INPUT VOLTAGE (V)

200

500

3404 G11

100

400

300

250

150

450

350

VOUT = 1.8V

PULSE SKIPPING

MODE

Burst Mode

OPERATION

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