IR3621FPBF International Rectifier, IR3621FPBF Datasheet - Page 26

• Manufacturer Part Number: IR3621FPBF
• Description: 2-Phase Dual Synchronous PWM Controller with Oscillator Synchronization and Pre-Bias Startup
• Manufacturer: International Rectifier

Specifications of IR3621FPBF

• Package: 28-Pin TSSOP
• Circuit: Dual Sync PWM Controller or 2Phase Single Output
• Vcc (min): 4.7
• Vcc (max): 16
• Vout (min): 0.8
• Vout (max): Vcc * 0.90
• Switch Freq (khz): programmable to 500kHz
• Pbf: PbF Option Available

IR3621 & (PbF)
TYPICAL OPERATING WAVEFORMS
Test Conditions:
V
Unless otherwise specified.
26
IN
=12V, V
Figure 36 - Load Transient Respons for Vo1
Figure 38 - Load Transient Respons for Vo2
OUT1
=2.5V, I
Ch1: Vo1, Ch4:Io1
Ch1: Vo2, Ch4: Io2
OUT1
(Io=0 to 10A)
(Io=0 to 10A)
=0-10A, V
OUT2
=1.8V, I
OUT2
www.irf.com
=0-10A, Fs=400kHz, Ta=Room Temp, No Air Flow
Figure 39 - Load Transient Respons for Vo2
Figure 37 - Load Transient Respons for Vo1
Ch1: Vo2, Ch4: Io2
(Io=10 to 0A)
Ch1: Vo1, Ch4: Io1
(Io=10 to 0A)