LTC3531/

LTC3531-3.3/LTC3531-3

3

3531fb

TYPICAL PERFOR

CE CHARACTERISTICS

A

Note 1: Stresses beyond those listed under Absolute Maximum Ratings

may cause permanent damage to the device. Exposure to any Absolute

Maximum Rating condition for extended periods may affect device

reliability and lifetime.

Note 2: This IC includes overtemperature protection that is intended

to protect the device during momentary overload conditions. Junction

temperature will exceed 125°C when overtemperature protection is active.

Continuous operation above the specified maximum operating junction

temperature may result in device degradation or failure.

Note 3: The LTC3531 is guaranteed to meet performance specifications

from 0°C to 70°C. Specifications over the –40°C to 85°C operating

temperature range are assured by design, characterization and correlation

with statistical process controls.

1.5

200

250

300

4.5

5

4

3

3531 G01

150

100

2.5

2

3.5

5.5

50

0

350

1.5

200

250

300

5.5

5

3531 G02

150

100

0

2.5

2

3.5

3

4.5

4

50

400

450

350

1.5

0

2

6

8

10

20

14

2.5

3.5

4

3531 G03

4

16

18

12

23

4.5

5

5.5

1.5

2

80

100

120

5.5

3531 G04

60

40

0

2.5

3

3.5

4

4.5

5

20

160

180

140

1.5

0

10

30

40

50

100

70

2.5

3.5

4

3531 G05

20

80

90

60

23

4.5

5

5.5

10

μF

22

μF

LOAD CURRENT (mA)

0.1

3.25

3.30

1000

3521 G06

3.20

3.15

1

10

100

3.40

3.35

47

μF

10

μF

22

μF

L = 10

μH

L = 10

μH

50mA LOAD

(3.3V Version)

(3.3V Version)

(3.3V Version)

Sleep Currents

SHDN

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

0.8

Ω

0.9

Ω

Peak Current Limit

295

365

460

mA

SHDN Input Threshold

0.4

1

1.4

V

SHDN Hysteresis

60

mV

SHDN Leakage Current

0.01

1

μA