RT8004
Typical Operating Characteristics
Efficiency vs. Output Current
Load Regulation
10100%0
0.30%
0.30
VIN = 3.3V, VOUT = 2.5V
909%0
VIN = 5V
80
80%
0.200.2%0
VIN = 3.3V
707%0
606%0
505%0
0.10%
0.10
40
40%
0.00%0
30
30%
202%0
101%0
-0.10%
-0.10
VOUT = 2.5V, 1M Continuous Mode Operation
500 1000 1500 2000 2500 3000
0
0%
-0.20
-0.20%
0
50
550
1050
1550
2050
2550
3050
Output Current (mA)
Output Current (mA)
Soft-Star Power On
Power Off
VIN = 3.3V, VOUT = 2.5V
VIN = 3.3V, VOUT = 2.5V, IOUT = 0A
RLOAD = 0.83Ω
IL
VOUT
(1V/Div)
(2A/Div)
VOUT
VSS
(1V/Div)
(2V/Div)
VLX
(5V/Div)
VIN
(2V/Div)
IL
(1A/Div)
Time (2.5ms/Div)
Time (25ms/Div)
Ripple Voltage
Load Transien Response
VIN = 3.3V, VOUT = 2.5V
ILOAD = No Load to 3A
VIN = 3.3V, VOUT = 2.5V, IOUT = 3A
VOUT
(10mV/Div)
VOUT
(50mV/Div)
VLX
(2V/Div)
IL
IL
(2A/Div)
(1A/Div)
Time (500ns/Div)
Time (25μs/Div)
www.richtek.com
8
DS8004-03 September 2007
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
