RT9605A Datasheet, PDF (6/12 Pages) Richtek Technology Corporation – Triple-Channel Synchronous-Rectified Buck MOSFET Driver

RT9605A
Preliminary
Typical Operating Characteristics
Efficiency vs. Output Current
0.86
VIN = 12V
IR MOSFET
0.84
0.82
0.8
0.78
0.76
0.74
0
10 20
30 40 50 60 70 80 90 100
Output Current (A)
Dead Time
Phase 1, Heavy Load
VIN = 12V, IOUT = 30A
UGATE (5V/Div)
PHASE (5V/Div)
LGATE (5V/Div)
Time (50ns/Div)
UGATE
(5V/Div)
PHASE
(5V/Div)
LGATE
(5V/Div)
Dead Time
Phase 1, Heavy Load
VIN = 12V, IOUT = 30A
Dead Time
Phase 1, No Load
VIN = 12V, IOUT = 30A
UGATE (5V/Div)
PHASE (5V/Div)
LGATE (5V/Div)
Time (50ns/Div)
Time (50ns/Div)
UGATE
(5V/Div)
PHASE
(5V/Div)
Dead Time
Phase 1, No Load
VIN = 12V, IOUT = 30A
Dead Time
Phase 2, Heavy Load
VIN = 12V, IOUT = 30A
UGATE (5V/Div)
PHASE (5V/Div)
LGATE
(5V/Div)
www.richtek.com
6
LGATE (5V/Div)
Time (50ns/Div)
Time (50ns/Div)
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DS9605A-05 August 2007