iru3073 International Rectifier Corp., iru3073 Datasheet - Page 18

• Manufacturer Part Number: iru3073
• Description: Synchronous Pwm Controller With Over-current Protection / Ldo Controller -
• Manufacturer: International Rectifier Corp.

IRU3073
APPLICATION EXPERIMENTAL WAVEFORMS
18
Figure 18 - Normal condition at no load.
Ch1: HDrv
Ch2: LDrv
Ch4: Inductor Current
Figure 20 - Soft-Start.
Ch1: V
Ch2: Bias Voltage (12V)
Ch3: V
Ch4: V
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IN
OUT1
OUT2
(5V)
(PWM)
(LDO)
Figure 19 - Gate signals when SS pin pulls low.
Ch1: HDrv
Ch2: LDrv
09/17/03
Rev. 1.0