ADP5042 datasheet(13/32 Pages) AD

13 / 32 page

ADP5042

Rev. 0 | Page 13 of 32

CH1 4V/DIV

W 20.0M

CH2 50mV/DIV

W 20.0M

CH3 50mA/DIV 1MΩ BW 20.0M

A CH3

28mA

200µs/DIV

5MS/s

200ns/pt

VOUT

LOAD

Figure 27. Buck Response to Load Transient, IOUT2 from 1 mA to 50 mA,

VOUT2 = 1.8 V, Auto Mode

A CH3

86mA

VOUT

LOAD

CH1 4V/DIV

W 20.0M

CH2 50mV/DIV

W 20.0M

CH3 50mA/DIV 1MΩ BW 20.0M

200µs/DIV

10MS/s

100ns/pt

Figure 28. Buck Response to Load Transient, IOUT1 from 20 mA to 140 mA,

VOUT1 = 3.3 V, Auto Mode

VOUT1

LOAD

CH2 4V/DIV

1MΩ BW 20.0M

CH3 50mV/DIV 1MΩ BW 20.0M

CH4 50mA/DIV 1MΩ BW 20.0M

200µs/DIV

50MS/s

20ns/pt

A CH3

145mA

Figure 29. Buck Response to Load Transient, IOUT2 from 20 mA to 180 mA,

VOUT1 = 1.8 V, PWM Mode

VOUT

IIN

A CH2

1.14V

CH1 1V/DIV

1MΩ BW 500M

CH2 3V/DIV

1MΩ BW 500M

CH3 50mA/DIV 1MΩ BW 20.0M

50µs/DIV

2MS/s

500ns/pt

Figure 30. LDO1 Startup, VOUT3=1.5 V, IOUT3 = 5 mA

VOUT

IIN

A CH2

1.14V

CH1 1V/DIV

1MΩ BW 500M

CH2 3V/DIV

1MΩ BW 500M

CH3 50mA/DIV 1MΩ BW 20.0M

100µs/DIV

1MS/s

1.0µs/pt

Figure 31. LDO2 Startup, VOUT3=3.3 V, IOUT3 = 5 mA

1.500

1.502

1.504

1.506

1.508

1.510

0.0001

0.001

0.01

0.1

OUTPUT CURRENT (A)

3.3V

4.5V

5.0V

5.5V

Figure 32. LDO1 Load Regulation Across Input Voltage, VOUT2 = 1.5 V

ADP5042 데이터시트(PDF) 13 Page - Analog Devices

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