ADP5022ACBZ-2-R7 datasheet(8/28 Pages) AD

8 / 28 page

ADP5022

Rev. A | Page 8 of 28

TYPICAL PERFORMANCE CHARACTERISTICS

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

CH1 2.00V

M 200µs

A CH1

1.92V

T 45.40%

BW CH2 2.00V

CH3 2.00V

VOUT1

VOUT2

VOUT3

Figure 4. 3-Channel Start-Up Waveforms, VIN3 Cascaded from VOUT1

0.00010

0.00008

0.00006

0.00004

0.00002

2.8

2.6

2.4

3.0 3.2 3.4 3.6 3.8 4.0 4.2 4.4 4.6 4.8 5.0 5.2 5.4

VIN (V)

Figure 5. System Quiescent Current vs. Input Voltage, VOUT1 = 0.8 V,

VOUT2 = 2.5 V, VIN3 = VOUT2, VOUT3 = 1.2 V, All Channels Unloaded

CH1 2.00V

CH4 5.00V

M 40.0µs

A CH3

2.2V

T 11.20%

BW CH2 50.0mA Ω BW

CH3 5.00V

VOUT

IIN

Figure 6. Buck1 Startup, VOUT1 = 3.3 V, IOUT1 = 10 mA

CH1 2.00V

CH4 5.00V

M 40.0µs

A CH3

2.2V

T 11.20%

BW CH2 50.0mA Ω BW

CH3 5.00V

VOUT

IIN

Figure 7. Buck2 Startup, VOUT2 = 1.8 V, IOUT2 = 5 mA

0.06

0.07

0.08

0.09

0.10

0.11

0.12

0.13

0.14

0.15

2.4

2.9

3.4

3.9

4.4

4.9

5.4

INPUT VOLTAGE (V)

PWM TO PSM

PSM TO PWM

Figure 8. Buck 2 PSM to PWM Transition, VOUT2 = 1.8 V

3.354

3.334

3.314

3.294

3.274

3.254

3.234

0.1

0.2

0.3

0.4

0.6

IOUT (A)

0.5

TA = +25°C

TA = –40°C

TA = +85°C

Figure 9. Buck1 Load Regulation Across Temperature, VOUT1 = 3.3 V,

Auto Mode

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