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AP3583A

Single Phase Synchronous Buck PWM Controller With Reference Input

BCD Semiconductor 

Data Sheet

Single Phase Synchronous Buck PWM Controller With Reference Input AP3583/A

Typical Performance Characteristics (Continued)

VPHASE

5V/div

VOUT(AC)

200mV/div

IOUT

5A/div

Time 10µs/div

VPHASE

5V/div

VOUT(AC)

200mV/div

IOUT

10A/div

Time 10µs/div

Figure 18. Load Transient Response

(VIN=12V, VOUT=1.2V, IOUT=0 to 10A; 4A/µs)

Figure 19. Load Transient Response

(VIN=12V, VOUT=1.2V, IOUT=0 to 20A; 4A/µs)

VOUT

0.5V/div

VPHASE

10V/div

IL

10A/div

Time 20ms/div

Figure 20. Over Current Protection

(VIN=12V, VOUT=1.2V to 0V, IOUT=0A)

VFB

1V/div

VUGATE

20V/div

VLGATE

10V/div

IL

10A/div

Time 80µs/div

Figure 21. Over Voltage Protection

(VIN=12V, VOUT=1.2V, IOUT=0A)

Dec. 2011 Rev. 1. 1

BCD Semiconductor Manufacturing Limited

10

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