LTC3113 datasheet(5/24 Pages) LINER

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LTC3113

3113f

Maximum Load Current in Burst

Mode Operation vs VIN (Burst

Mode Peak Current Limit 0.9A)

Output Voltage Regulation

vs Load Current

Load Step, 0A to 3A

Output Voltage Ripple in Burst

Mode Operation

TYPICAL PERFORMANCE CHARACTERISTICS

(TA = 25°C, VIN = 3.3V, VOUT = 3.8V unless otherwise speciﬁed)

Output Voltage Ripple in

PWM Mode

Burst to PWM Mode Transient

Soft-Start

VIN (V)

1.5

200

250

4.5

3113 G10

150

100

2.5

3.5

2.0

5.0

3.0

4.0

5.5

300

LOAD CURRENT (A)

–0.8

–0.6

–0.4

–0.2

0.0001

0.01

0.1

3113 G11

–1.0

0.001

PWM MODE

Burst Mode

OPERATION

ILOAD

2A/DIV

VOUT

200mV/DIV

100μs/DIV

BACK PAGE TYPICAL APPLICATION

3113 G12

INDUCTOR

CURRENT

1A/DIV

VOUT

20mV/DIV

20μs/DIV

ILOAD = 50mA

FRONT PAGE TYPICAL APPLICATION

3113 G14

VOUT

20mV/DIV

VOUT

20mV/DIV

VOUT

20mV/DIV

1μs/DIV

ILOAD = 1A

3113 G14

VIN = 3.3V

VIN = 4V

VIN = 4.55V

VOUT

50mV/DIV

BURST

2V/DIV

500μs/DIV

ILOAD = 50mA

3113 G15

FRONT PAGE TYPICAL APPLICATION

VOUT

2V/DIV

RUN

5V/DIV

500μs/DIV

VIN = 3.3V

VOUT = 3.8V

COUT = 100μF

3113 G16

Normalized Input Current Limit

vs Temperature (7.8A Typical)

Normalized Peak Current Limit

vs Temperature (11.1A Typical)

TEMPERATURE (°C)

0.90

1.00

1.10

0.95

1.05

–25

3113 G17

115

–45

–5

TEMPERATURE (°C)

–45

1.05

3113 G18

0.95

0.90

–5

–25

115

1.10

1.00

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