ADP2140 datasheet(9/32 Pages) AD

9 / 32 page

Data Sheet

ADP2140

Rev. B | Page 9 of 32

VIN1 = 4 V, VOUT = 1.8 V, IOUT = 10 mA, CIN = COUT = 10 µF, TA = 25°C, unless otherwise noted.

100

1000

LOAD CURRENT (mA)

2.5V

3.0V

4.0V

5.0V

5.5V

Figure 16. Efficiency vs. Load Current, VOUT = 1.2 V, Different Input Voltages

100

1000

LOAD CURRENT (mA)

–40°C

–5°C

+25°C

+85°C

+125°C

Figure 17. Efficiency vs. Load Current, VOUT = 1.2 V, Different Temperatures

CH1 1.00V

CH2 50.0mV

M20.0µs

A CH1

4.68V

T 11.60%

CH3 5.00V

INPUT VOLTAGE

OUTPUT VOLTAGE

SWITCH NODE

Figure 18. Line Transient, VOUT = 1.8 V, Power Save Mode, 50 mA,

VIN1 = 4 V to 5 V, 4 μs Rise Time

100

1000

LOAD CURRENT (mA)

–40°C

–5°C

+25°C

+85°C

+125°C

Figure 19. Efficiency vs. Load Current, VOUT = 3.3 V, Different Temperatures

100

1000

LOAD CURRENT (mA)

4.0V

5.0V

5.5V

Figure 20. Efficiency vs. Load Current, VOUT = 3.3 V, Different Input Voltages

CH1 1.00V

CH2 20.0mV

M20.0µs

A CH1

4.68V

T 11.60%

CH3 5.00V

INPUT VOLTAGE

OUTPUT VOLTAGE

SWITCH NODE

Figure 21. Line Transient, VOUT = 1.8 V, PWM Mode, 600 mA, VIN1 = 4 V to 5 V,

4 μs Rise Time

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