ADP3152 datasheet(5/12 Pages) AD

5 / 12 page

OUTPUT CURRENT – Amps

100

1.4

2.8

14.0

4.2

5.6

7.0

9.8 11.2 12.6

8.4

VOUT = +2.0V

VOUT = +2.8V

VOUT = +3.5V

SEE FIGURE 2

Figure 4. Efficiency vs. Output Current

500ns/DIV

PRIMARY

N-DRIVE

DRIVER OUTPUT

SECONDARY

N-DRIVE

DRIVER OUTPUT

DRIVE 1 AND 2 = 5V/DIV

VOUT = +3.5V, IOUT = 10A

SEE FIGURE 2

Figure 7. Gate Switching Waveforms

OUTPUT CURRENT

1A TO 14A

OUTPUT VOLTAGE

20mV/DIV

Figure 10. Transient Response,

1A–14 A of Figure 2 Circuit

TIMING CAPACITOR – pF

100

800

200

300

400

500

600

700

450

400

200

150

100

350

250

300

Figure 5. Frequency vs. Timing

Capacitor

100ns/DIV

SEE FIGURE 2

Figure 8. Driver Transition Waveforms

10ms

REGULATOR

OUTPUT VOLTAGE

1V/DIV

VCC VOLTAGE

5V/DIV

Figure 11. Power-On Start-Up

Waveforms

OPERATING FREQUENCY – kHz

397

134

Qn + Qn = 100nC

Figure 6. Gate Charge Supply Cur-

rent vs. Operating Frequency

10 s/DIV

OUTPUT CURRENT

14A TO 1A

OUTPUT VOLTAGE

20mV/DIV

Figure 9. Transient Response, 14 A–1A

of Figure 2 Circuit

OUTPUT ACCURACY – %

TA = +25 C

SEE FIGURE 13

Figure 12. Output Accuracy

Distribution, VOUT = 2.8 V

Typical Performance Characteristics–ADP3152

–5–

REV. 0

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