AD5757ACPZ datasheet(16/44 Pages) AD

16 / 44 page

AD5757

Rev. A | Page 16 of 44

–0.50 –0.25

0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00

TIME (ms)

0mA TO 24mA RANGE

1kΩ LOAD

fSW = 410kHz

INDUCTOR = 10µH (XAL4040-103)

AVCC = 5V

TA = 25°C

IOUT

VBOOST

Figure 26. Output Current and VBOOST_x Settling Time with DC-to-DC

Converter (See Figure 56)

–0.25

0.25

0.50

0.75

1.00

1.25

1.50

1.75

TIME (ms)

IOUT, TA = –40°C

IOUT, TA = +25°C

IOUT, TA = +105°C

0mA TO 24mA RANGE

1kΩ LOAD

fSW = 410kHz

INDUCTOR = 10µH (XAL4040-103)

AVCC = 5V

Figure 27. Output Current Settling with DC-to-DC Converter vs. Time and

Temperature (See Figure 56)

–0.25

0.25

0.50

0.75

1.00

1.25

1.50

1.75

TIME (ms)

IOUT, AVCC = 4.5V

IOUT, AVCC = 5.0V

IOUT, AVCC = 5.5V

0mA TO 24mA RANGE

1kΩ LOAD

fSW = 410kHz

INDUCTOR = 10µH (XAL4040-103)

TA = 25°C

Figure 28. Output Current Settling with DC-to-DC Converter vs. Time and

AVCC (See Figure 56)

–5

010

TIME (µs)

IOUT (4mA TO 20mA STEP)

IOUT (20mA TO 4mA STEP)

TA = 25°C

EXTERNAL PMOS (NTLJS4149)

4mA TO 20mA RANGE

RLOAD = 300Ω

VBOOST_X = 24V

Figure 29. Output Current Settling Time with External PMOS Transistor

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