ADP5042(Rev0) データシートの表示（PDF） - Analog Devices

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ADP5042
(Rev.:Rev0)

Micro PMU with 0.8 A Buck, Two 300 mA LDOs Supervisory, Watchdog and Manual Reset

Analog Devices 

TYPICAL PERFORMANCE CHARACTERISTICS

VIN1 = VIN2 = VIN3 = AVIN = 5.0 V, TA = 25°C, unless otherwise noted.

ADP5042

VOUT1

1

VOUT2

2

VOUT3

3

CH1 2.0V/DIV 1MΩ BW 20.0M

CH2 2.0V/DIV 1MΩ BW 500M

CH3 2.0V/DIV 1MΩ BW 20.0M

A CH1

1.76V

200µs/DIV

50.0MS/s

20.0ns/pt

Figure 3. 3-Channel Start-Up Waveforms

1.0

0.9

0.8

0.7

0.6

0.5

0.4

0.3

0.2

VOUT1 = 1.8V,

VOUT2 = VOUT = 3.3V

0.1

0

2.3

2.8

3.3

3.8

4.3

4.8

5.3

INPUT VOLTAGE (V)

Figure 4. System Quiescent Current (Sum of All the Input Currents) vs. Input Voltage,

VOUT1 = 1.8 V, VOUT2 = VOUT3 = 3.3 V

SW

4

VOUT1

2

EN

1

LOAD

3

CH1 4.0V/DIV

CH2 3.0V/DIV

CH3 200mA/DIV

CH4 5.0V/DIV

1MΩ BW 20.0M

1MΩ BW 500M

1MΩ BW 20.0M

1MΩ BW 500M

A CH1

2.24V

50µs/DIV

20.0MS/s

50.0ns/pt

Figure 6. Buck Startup, VOUT1 = 1.8 V, IOUT2 = 20 mA

3.34

–40°C

+25°C

+85°C

3.32

3.30

3.28

3.26

3.24

3.22

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0

OUTPUT CURRENT (A)

Figure 7. Buck Load Regulation Across Temperature, VOUT1 = 3.3 V, Auto Mode

SW

4

VOUT1

2

EN

1

IIN

3

CH1 2.0V/DIV 1MΩ BW 20.0M A CH1

CH2 2.0V/DIV 1MΩ BW 500M

CH3 100mA/DIV 1MΩ BW 20.0M

CH4 5.0V/DIV 1MΩ BW 500M

2.92V

50µs/DIV

50.0MS/s

20.0ns/pt

Figure 5. Buck Startup, VOUT1 = 1.8 V, IOUT1 = 20 mA

1.830

1.825

1.820

–40°C

+25°C

+85°C

1.815

1.810

1.805

1.800

1.795

1.790

1.785

1.780

1.775

0

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8

OUTPUT CURRENT (A)

Figure 8. Buck Load Regulation Across Temperature, VOUT1 = 1.8 V, Auto Mode

Rev. 0 | Page 9 of 32

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