LTC3250-1.2 datasheet(3/12 Pages) LINER

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LTC3250-1.5/LTC3250-1.2

3250fa

No Load Supply Current vs

Supply Voltage

Output Voltage vs Supply Voltage

Output Voltage vs Load Current

Oscillator Frequency vs

Supply Voltage

Efficiency vs Output Current

VSHDN Threshold Voltage vs

Supply Voltage

TYPICAL PERFOR A CE CHARACTERISTICS

VIN (V)

2.7

5.1

3250 G01

3.5

3.1

3.9

4.3

4.7

5.5

TA = –40°C

TA = 25°C

TA = 85°C

3.1V < VIN < 5.5V (LTC3250-1.5)

2.7V < VIN < 5.5V (LTC3250-1.2)

VIN (V)

1.8

1.7

1.6

1.5

1.4

1.3

1.2

3250 G02

TA = –40°C

TA = 25°C

TA = 85°C

3.1V < VIN < 5.5V (LTC3250-1.5)

2.7V < VIN < 5.5V (LTC3250-1.2)

2.7

4.7

3.2

3.7

4.2

5.2

VIN (V)

2.7

1200

1100

1000

900

800

700

600

500

400

4.7

3250 G03

3.2

3.7

4.2

5.2

TA = –40°C

TA = 25°C

TA = 85°C

3.1V < VIN < 5.5V (LTC3250-1.5)

2.7V < VIN < 5.5V (LTC3250-1.2)

IOUT (mA)

100

150

200

3250 G04

250

1.60

1.58

1.56

1.54

1.52

1.50

1.48

1.46

1.44

1.42

1.40

300

VIN = 3.6V

TA = 25°C

IOUT (mA)

0.1

1000

3250 G05

100

VIN = 3.6V

VIN = 3.3V

VIN = 4V

VIN = 5V

TA = 25°C

VIN (V)

3.0

1.60

1.58

1.56

1.54

1.52

1.50

1.48

1.46

1.44

1.42

1.40

5.0

3250 G06

3.5

4.0

4.5

5.5

TA = 25°C

IOUT = 0mA

IOUT = 250mA

IOUT = 100mA

(LTC3250-1.5)

Output Voltage vs Supply Voltage

Output Voltage vs Load Current

Efficiency vs Output Current

(LTC3250-1.2)

IOUT (mA)

100

150

200

3250 G12

250

1.30

1.28

1.26

1.24

1.22

1.20

1.18

1.16

1.14

1.12

1.10

300

VIN = 3.6V

TA = 25°C

IOUT (mA)

0.1

1000

3250 G13

100

VIN = 3V

VIN = 2.7V

VIN = 3.5V

VIN = 4.5V

TA = 25°C

VIN (V)

2.7

1.30

1.28

1.26

1.24

1.22

1.20

1.18

1.16

1.14

1.12

1.10

4.7

3250 G14

3.2

3.7

4.2

5.2

IOUT = 0mA

IOUT = 250mA

IOUT = 100mA

TA = 25°C

LTC3250-1.2 Datasheet(PDF) 3 Page - Linear Technology

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