LM2775 datasheet(7/27 Pages) TI

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IOUT (V)

2E-5

0.0001

0.001

0.01

0.05

0.2

0.5

20%

40%

60%

80%

D015

TA = -40°C

TA = 25°C

TA = 85°C

Time (200 2s / DIV)

ILOAD (100 mA/DIV)

VOUT (100 mV/DIV)

+5 V Offset

VIN (V)

2.7

3.1

3.5

3.9

4.3

4.7

5.1

5.5

40%

45%

50%

55%

60%

65%

70%

75%

80%

85%

90%

D013

TA = -40°C

TA = +25°C

TA = 85°C

IOUT (V)

2E-5

0.0001

0.001

0.01

0.05

0.2

0.5

20%

40%

60%

80%

D014

TA = -40°C

TA = 25°C

TA = 85°C

VIN (V)

2.7

3.1

3.5

3.9

4.3

4.7

5.1

5.5

0.000

0.001

0.002

0.003

0.004

0.005

0.006

0.007

0.008

0.009

0.010

0.011

0.012

0.013

0.014

0.015

D007

TA = -40°C

TA = +25°C

TA = +85°C

VIN (V)

2.7

3.1

3.5

3.9

4.3

4.7

5.1

5.5

1.94E+6

1.96E+6

1.98E+6

2E+6

2.02E+6

2.04E+6

2.06E+6

2.08E+6

D008

TA = -40°C

TA = +25°C

TA = +85°C

LM2775

www.ti.com

SNVSA57 – MAY 2015

Typical Characteristics (continued)

TA = 25°C, VIN = 3.6 V, CIN = COUT = 10 µF (10-V 0402 case), C1 = 1 µF (10-V 0402 case), VEN = VIN.

ILOAD = 0 mA

PFM = '0'

Figure 10. Switching Frequency

Figure 9. PWM Quiescent Current

ILOAD = 100 mA

PFM = '0'

VIN = 3.3 V

PFM = '0'

Figure 11. Efficiency vs Input Voltage

Figure 12. Efficiency vs Load Current

VIN = 3.6 V

ILOAD = 1 mA to 100 mA

PFM = '1'

VIN = 3.3 V

PFM = '1'

Figure 14. PFM Load Step

Figure 13. Efficiency vs Load Current

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