LTC3713 datasheet(4/24 Pages) LINER

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LTC3713

3713fa

TYPICAL PERFOR A CE CHARACTERISTICS

Transient Response

(Discontinuous Mode)

Transient Response

Boost Converter Oscillator

Frequency vs Temperature

Boost Converter Current Limit

vs Duty Cycle

SHDN Pin Current vs VSHDN

VFB2, Feedback Pin Voltage

VOUT

100mV/DIV

5A/DIV

µs/DIV

3713 G01

LOAD STEP 0A TO 6A

VIN = 3.3V

VOUT = 1.25V

FCB = 0V

FIGURE 1 CIRCUIT

VOUT

100mV/DIV

5A/DIV

µs/DIV

3713 G02

LOAD STEP 600mA TO 6A

VIN = 3.3V

VOUT = 1.25V

FCB = INTVCC

FIGURE 1 CIRCUIT

VOUT

500mV/DIV

5A/DIV

500

µs/DIV

3713 G03

VIN = 3.3V

VOUT = 1.25V

L = 1.8

µH

COUT = 540µF

LOAD = 0.2

Ω

Start-Up from Shutdown

TEMPERATURE (

°C)

–50

–25

100

3713 G04

2.00

1.75

1.50

1.25

1.00

0.75

0.50

0.25

VIN = 5V

VIN = 1.5V

SHDN PIN VOLTAGE (V)

012345

3713 G05

TA = 25°C

DUTY CYCLE (%)

3713 G06

1000

900

800

700

600

500

400

300

200

°C

–40

°C

TEMPERATURE (

°C)

–50

3713 G07

1.25

1.24

1.23

1.22

1.21

1.20

VOLTAGE

–25

100

Efficiency vs Load Current

(Discontinuous Mode)

LOAD CURRENT (A)

0.01

100

0.4

1713 G09

0.04 0.07 0.1

0.7

VIN = 2.5V

VIN = 3.3V

FIGURE 1 CIRCUIT (B)

LOAD CURRENT (A)

0.01

100

0.09

0.8

3713 G10

0.05

0.4

VIN = 3.3V

VIN = 2.5V

FIGURE 1 CIRCUIT (B)

Efficiency vs Load Current

(Force Continuous)

LTC3713 Datasheet(PDF) 4 Page - Linear Technology

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