LTC3526B-2_15 datasheet(3/16 Pages) LINER

Part #	LTC3526B-2

Description	500mA 2MHz Synchronous Step-Up DC/DC Converters

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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LTC3526-2/LTC3526B-2

35262b2fc

Note 1:StressesbeyondthoselistedunderAbsoluteMaximumRatings

maycausepermanentdamagetothedevice.ExposuretoanyAbsolute

MaximumRatingconditionforextendedperiodsmayaffectdevice

reliabilityandlifetime.

Note 2:TheLTC3526E-2isguaranteedtomeetperformancespecifications

from0°Cto85°C.Specificationsover–40°Cto85°Coperating

temperaturerangeareassuredbydesign,characterizationandcorrelation

withstatisticalprocesscontrols.

Note 3:Specificationisguaranteedbydesignandnot100%testedin

production.

Note 4:Currentmeasurementsaremadewhentheoutputisnotswitching.

Note 5:ThisICincludesovertemperatureprotectionthatisintended

toprotectthedeviceduringmomentaryoverloadconditions.Junction

temperaturewillexceed125°Cwhenovertemperatureprotectionisactive.

Continuousoperationabovethespecifiedmaximumoperatingjunction

temperaturemayresultindevicedegradationorfailure.

Note 6:FailuretosoldertheexposedbacksideofthepackagetothePC

boardgroundplanewillresultinathermalresistancemuchhigherthan

102°C/W.

Efficiency vs Load Current and VIN

for VOUT = 1.8V (LTC3526-2)

Efficiency vs Load Current and VIN

for VOUT = 3.3V (LTC3526-2)

Efficiency vs Load Current and VIN

for VOUT = 5V (LTC3526-2)

No-Load Input Current vs VIN

Maximum Output Current vs VIN

Minimum Load Resistance

During Start-Up vs VIN

LOAD CURRENT (mA)

0.01

40

50

60

70

80

0.1

1

10

100

1000

35262b2 G01

30

20

10

0

90

100

1

10

100

0.1

0.01

1000

VIN = 1.0V

VIN = 1.2V

VIN = 1.5V

PLOSS AT VIN = 1.0V

PLOSS AT VIN = 1.2V

PLOSS AT VIN = 1.5V

LOAD CURRENT (mA)

0.01

40

50

60

70

80

0.1

1

10

100

1000

35262b2 G02

30

20

10

0

90

100

1

10

100

0.1

0.01

1000

VIN = 1.2V

VIN = 2.4V

VIN = 3.0V

PLOSS AT VIN = 1.2V

PLOSS AT VIN = 2.4V

PLOSS AT VIN = 3.0V

VIN (V)

0.5

60

70

80

4.5

35262b2 G04

50

40

10

1.5

2.5

3.5

1.0

2.0

3.0

4.0

30

20

100

90

VOUT = 3.3V

VOUT = 5V

VOUT = 2.5V

VOUT = 1.8V

LOAD CURRENT (mA)

0.01

40

50

60

70

80

0.1

1

10

100

1000

35262b2 G03

30

20

10

0

90

100

1

10

100

0.1

0.01

1000

VIN = 1.2V

VIN = 2.4V

VIN = 3.6V

VIN = 4.2V

PLOSS AT VIN = 1.2V

PLOSS AT VIN = 2.4V

PLOSS AT VIN = 3.6V

PLOSS AT VIN = 4.2V

VIN (V)

0.5

200

300

4.5

35262b2 G05

100

0

1.5

2.5

3.5

1.0

2.0

3.0

4.0

400

150

250

50

350

VOUT = 3.3V

VOUT = 5V

VOUT = 2.5V

VOUT = 1.8V

L = 2.2µH

VIN (V)

0.95

10

100

1000

1.05

1.15

35262b2 G06

0.85

1.25

electricAl chArActeristics

typicAl perForMAnce chArActeristics

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