LP3913 datasheet(19/70 Pages) TI1

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OUTPUT CURRENT (mA)

90. 0

80. 0

70. 0

60. 0

50. 0

40. 0

30. 0

20. 0

10. 0

0. 0

0.1

1.0

100

1000

Vin = 3.2V

Vin = 4V

Vin = 5V

OUTPUT CURRENT (mA)

100.0

90.0

80.0

70.0

50.0

40.0

30.0

20.0

10.0

0.0

0. 1

1. 0

100

1000

Vin = 3.2V

Vin = 4V

Vin = 5V

SUPPLY VOLTAGE (V)

1.25

1.24

1.23

1.22

1.21

1.20

3.0

3.5

4.0

4.5

5.0

5.5

IOUT = 20 mA

IOUT = 300 mA

IOUT = 600 mA

SUPPLY VOLTAGE (V)

0. 825

0. 820

0. 815

0. 810

0. 805

0. 800

3.0

3.5

4. 0

4.5

5.0

5.5

IOUT = 20 mA

IOUT = 300 mA

IOUT = 600 mA

SUPPLY VOLTAGE (V)

2.05

2.04

2.03

2.02

2.01

2.00

3.0

3.5

4.0

4.5

5.0

5.5

IOUT = 20 mA

IOUT = 300 mA

IOUT = 600 mA

SUPPLY VOLTAGE (V)

3.35

3.33

3.31

3.29

3.27

3.25

4.0

4.3

4.6

4. 9

5.2

5.5

IOUT = 20 mA

I OUT = 300 mA

I OUT = 600 mA

LP3913

www.ti.com

SNVS489I – NOVEMBER 2006 – REVISED SEPTEMBER 2013

TYPICAL PERFORMANCE CHARACTERISTICS - BUCK

TA = 25°C unless otherwise noted

Output Voltage vs. Supply Voltage

(Vout = 3.3 V)

(Vout = 2.0 V)

Figure 23.

Figure 24.

Output Voltage vs. Supply Voltage

(Vout = 1.2V)

(Vout = 0.8V)

Figure 25.

Figure 26.

Buck 1 Efficiency vs. Output Current

(Forced PWM Mode, Vout =1.2V, L= 2.2µH)

(Forced PWM Mode, Vout =2.0V, L= 2.2µH)

Figure 27.

Figure 28.

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