MIC2182 Datasheet, PDF (24/28 Pages) Micrel Semiconductor – High-Efficiency Synchronous Buck Controller Final Information

MIC2182
Power Supply Operating Characteristics
Effect of Soft-Start Capacitor (CSS) Value
On Output Voltage Waveforms
During Turn-On
(10A Power Supply Configuration)
Micrel
Effect of Soft-Start Capacitor (C_SS) Value
On Output Voltage Waveforms
During Turn-On
(4A Power Supply Configuration)
Normal (300kHz Switching Frequency) and
Output Short-Circuit (60kHz) Conditions
Switch Node (Pin 15) Waveforms
Typical Skip-Mode Waveforms
Converter Waveforms
SWITCH-NODE
VOLTAGE
HIGH-SIDE
DRIVE VOLTAGE
REFERENCED TO GROUND
HIGH-SIDE MOSFET
GATE-TO-SOURCE VOLTAGE
LOW-SIDE MOSFET
GATE-TO-SOURCE VOLTAGE
INDUCTOR CURRENT
V_IN = 7V
L1 = 3.3µH
V_OUT = 3.3V
IOUT = 10A
QTY: 2
Si4884
HIGH-SIDE
MOSFETS
QTY: 2
Si4884
LOW-SIDE
MOSFETS
10Amps
Typical PWM-Mode Waveforms
MIC2182
24
June 2000