LT3471 datasheet(3/16 Pages) LINER

номер детали	LT3471

подробное описание детали	Dual 1.3A, 1.2MHz Boost/Inverter in 3mm x 3mm DFN

PDF	16 Pages

Scroll/Zoom	100%

производитель	LINER [Linear Technology]

домашняя страница	http://www.linear.com

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3 / 16 page

LT3471

3471f

TYPICAL PERFOR A CE CHARACTERISTICS

Quiescent Current

vs Temperature

VREF Voltage vs Temperature

VREF Voltage vs VREF Current

SHDN/SS Current

vs SHDN/SS Voltage

Current Limit vs Duty Cycle

Switch Saturation Voltage

vs Switch Current

Oscillator Frequency

vs Temperature

Start-Up Waveform

(Figure 2 Circuit)

Peak Switch Current

vs SHDN/SS Voltage

TEMPERATURE (°C)

–50

–25

1.6

2.0

2.6

3471 G01

1.8

2.4

2.2

100

125

TEMPERATURE (°C)

–50

–25

0.990

1.000

1.010

3471 G02

0.995

1.005

100

125

VREF

VOLTAGE

100mV/DIV

VREF CURRENT 200µA/DIV

3741 G03

SHDN/SS

CURRENT

20µV/DIV

SHDN/SS VOLTAGE 1V/DIV

3741 G04

VIN = 3.3V

VIN > VSHDN/SS

DUTY CYCLE (%)

1.2

1.6

2.2

2.0

3471 G05

0.8

0.4

1.0

1.4

1.8

0.6

0.2

100

TYPICAL

GUARANTEED

TA = 25°C

SW CURRENT (A)

800

700

600

500

400

300

200

100

1.6

3471 G06

0.4

0.8

1.2

2.0

1.4

0.2

0.6

1.0

1.8

90°C

25°C

TEMPERATURE (°C)

–50

1.00

1.05

1.15

1.20

1.25

1.50

1.35

3471 G07

1.10

1.40

1.45

1.30

–25

100

125

VSHDN/SS (V)

1.2

1.6

2.0

1.6

3471 G08

0.8

0.4

1.0

1.4

1.8

0.6

0.2

0.4

0.2

0.8

0.6

1.2 1.4

1.8

2.0

TA = 25°C

ISUPPLY

1A/DIV

VOUT1

2V/DIV

VOUT2

5V/DIV

CONTROL 1 AND 2

5V/DIV

0.5ms/DIV

3471 G09

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