4

LTC3560

3560f

Dynamic Supply Current

Dynamic Supply Current

vs Temperature

Switch Leakage vs Temperature

Switch Leakage vs Input Voltage

TYPICAL PERFOR A CE CHARACTERISTICS

(From Figure 1a Except for the Resistive Divider Resistor Values)

Oscillator Frequency vs

Supply Voltage

Output Voltage vs Load Current

INPUT VOLTAGE (V)

2

1.8

1.9

2.0

2.1

2.2

34

5

6

3560 G07

2.3

2.4

2.5

3.5

4.5

5.5

LOAD CURRENT (mA)

0

1.78

1.79

1.80

1.81

1.82

1.84

200

400

600

800

3560 G08

1000

1200

1.83

Burst Mode OPERATION

PULSE SKIP MODE

INPUT VOLTAGE (V)

0

0.30

0.35

0.40

35

3560 G10

0.25

0.20

12

46

7

0.15

0.10

MAIN SWITCH

SYNCHRONOUS

SWITCH

TEMPERATURE (

°C)

–50

0.35

25

3560 G09

0.20

0.10

–25

0

50

0.05

0

0.40

0.30

0.25

0.15

75

100

125

SYNCHRONOUS SWITCH

MAIN SWITCH

INPUT VOLTAGE (V)

2

0

50

100

150

200

34

5

6

3560 G12

250

300

2.5

3.5

4.5

5.5

PULSE SKIPPING MODE

Burst Mode OPERATION

TEMPERATURE (

°C)

–50

200

250

300

25

75

3560 G11

150

100

–25

0

50

100

125

50

0

PULSE SKIPPING MODE

Burst Mode OPERATION

TEMPERATURE (

°C)

–50

80

100

140

25

75

3560 G13

60

40

–25

0

50

100

125

20

0

120

SYNCHRONOUS

SWITCH

MAIN SWITCH

INPUT VOLTAGE (V)

0

0

200

400

600

1

2

34

3560 G14

5

800

1000

100

300

500

700

900

6

SYNCHRONOUS

SWITCH

MAIN SWITCH

RUN = 0V

Oscillator Frequency vs

Temperature

TEMPERATURE (

°C)

–50

2.00

2.05

2.15

2.20

2.25

2.50

2.35

0

50

75

3560 G06

2.10

2.40

2.45

2.30

–25

25

100

125