LP3910 datasheet(22/72 Pages) TI1

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OUTPUT CURRENT (mA)

0.1

100

1000

VIN = 4.2 V

VIN = 2.7 V

VIN = 3.3 V

100

OUTPUT CURRENT (mA)

0.1

100

1000

VIN = 4.2 V

VIN = 2.7 V

VIN = 3.6 V

100

VIN (V)

2.5

3.0

3.5

4.0

4.5

5.0

5.5

VOUT = 3.3 V

VOUT = 1.8 V

100

OUTPUT CURRENT (mA)

0.1

100

1000

VBATT = 4.2 V

VBATT = 3.3 V

VBATT = 2.7 V

100

LP3910

SNVS481M – NOVEMBER 2006 – REVISED DECEMBER 2015

www.ti.com

7.21.4 Buck-Boost Characteristics

VOUT = 3.3 V

ILOAD= 100 mA

Figure 38. Forced PWM Efficiency vs ILOAD

Figure 37. Efficiency vs VIN

VOUT = 1.8 V

VOUT = 3.3 V

Figure 40. Automode Efficiency vs ILOAD

Figure 39. Automode Efficiency vs ILOAD

VIN = 4.2 V

VOUT = 3.3 V

ILOAD = 250 mA

VIN = 3.6 V

VOUT = 3.3 V

ILOAD = 250 mA

Figure 41. Switch Pins in Buck Mode Operation

Figure 42. Switch Pin on Edge of Buck Mode Operation

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LP3910 Datasheet(PDF) 22 Page - Texas Instruments

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