LTC3528 datasheet(4/16 Pages) LINER

Part #	LTC3528

Description	1A, 1MHz Synchronous Step-Up DC/DC Converters in 3mm 횞 2mm DFN

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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LTC3528/LTC3528B

4

3528fa

LOAD CURRENT (mA)

0.01

80

90

100

3528 G03

70

60

0.1

1

10

1000

50

40

30

100

1000

10

1

0.1

VIN = 1.2V

VIN = 2.4V

VIN = 3.6V

VIN = 4.2V

EFFICIENCY

POWER

LOSS

No-Load Input Current vs VIN

(LTC3528)

Maximum Output Current vs VIN

Minimum Load Resistance During

Start-Up vs VIN

Start-Up Delay Time vs VIN

Burst Mode Threshold Current

vs VIN

Efﬁciency vs Load Current and VIN

for VOUT = 5V (LTC3528)

Efﬁciency vs Load Current and VIN

for VOUT = 3.3V (LTC3528)

LOAD CURRENT (mA)

0.01

80

90

100

3528 G02

70

60

0.1

1

10

1000

50

40

30

100

1000

10

1

0.1

0.01

VIN = 1.2V

VIN = 1.8V

VIN = 2.4V

VIN = 3V

EFFICIENCY

POWER

LOSS

VIN (V)

1

10

30

50

70

90

110

130

23

4

5

3528 G04

VOUT = 1.8V

VOUT = 3V

VOUT = 3.3V

VOUT = 5V

VIN (V)

1

700

2.5

3528 G05

400

200

1.5

2

3

100

0

800

600

500

300

3.5

4

4.5

VOUT = 1.8V

VOUT = 3.3V

VOUT = 5V

VIN (V)

0.7

10

1000

100

10000

0.8

0.9

1

3528 G06

VIN (V)

1

120

2.5

3528 G07

90

70

1.5

2

3

60

50

130

110

100

80

3.5

4

4.5

VIN (V)

1

20

30

1.4

3528 G08

10

0

1.1

1.2

1.3

RISING

FALLING

1.5

40

VOUT = 1.8V

VIN (V)

1

20

30

3528 G09

10

0

1.5

RISING

VOUT = 3V

FALLING

2

2.5

50

40

VIN (V)

1

0

20

40

RISING

FALLING

60

1.5

2

3528 G10

2.5

3

VOUT = 3.3V

TYPICAL PERFORMANCE CHARACTERISTICS (T

A = 25°C unless otherwise noted)

Burst Mode Threshold Current

vs VIN

Burst Mode Threshold Current

vs VIN

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