AD586 datasheet(16/44 Pages) AD

16 / 44 page

AD5737

Data Sheet

Rev. B | Page 16 of 44

–0.25

0.25

0.50

0.75

1.00

1.25

1.50

1.75

TIME (ms)

TA = –40°C

TA = +25°C

TA = +105°C

0mA TO 24mA RANGE

1kΩ LOAD

fSW = 410kHz

INDUCTOR = 10µH (XAL4040-103)

AVCC = 5V

Figure 26. Output Current Settling Time with DC-to-DC Converter

over Temperature (See Figure 55)

–0.25

0.25

0.50

0.75

1.00

1.25

1.50

1.75

TIME (ms)

AVCC = 4.5V

AVCC = 5.0V

AVCC = 5.5V

0mA TO 24mA RANGE

1kΩ LOAD

fSW = 410kHz

INDUCTOR = 10µH (XAL4040-103)

TA = 25°C

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

over AVCC (See Figure 55)

–5

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 28. Output Current Settling Time with External PMOS Transistor

–10

–8

–6

–4

–2

TIME (µs)

AVCC = 5V

SW = 410kHz

INDUCTOR = 10µH (XAL4040-103)

0mA TO 24mA RANGE

1kΩ LOAD

EXTERNA L RSET

TA = 25°C

20mA OUTPUT

10mA OUTPUT

Figure 29. Output Current, AC-Coupled vs. Time

with DC-to-DC Converter (See Figure 55)

OUTPUT CURRENT (mA)

0mA TO 24mA RANGE

1kΩ LOAD

fSW = 410kHz

INDUCTOR = 10µH (XAL4040-103)

TA = 25°C

Figure 30. DC-to-DC Converter Headroom vs. Output Current (See Figure 55)

–120

–100

–80

–60

–40

–20

100

10k

100k

10M

FREQUENCY (Hz)

AVDD = 15V

VBOOST_x = 15V

TA = 25°C

Figure 31. IOUT_x PSRR vs. Frequency

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