RT9005A Datasheet, PDF (6/10 Pages) Richtek Technology Corporation – DDR VDDQ and Termination Voltage Regulator

RT9005A/B
Preliminary
Typical Operating Characteristics
Output Voltage vs. Temperature
3.0
VIN1 = VIN2 = VCNTL = 3.3V
2.5
VOUT1 = 2.5V
V_IN2 Current vs. Temperature
5
VIN2 = 1.8V, VCNTL = 3.3V
4.5
VIN2 = 1.8V, VCNTL = 5V
VIN2 = 2.5V, VCNTL = 3.3V
VIN2 = 2.5V, VCNTL = 5V
4
2.0
3.5
1.5
VOUT1 = 1.25V
1.0
-50 -25
0
25 50 75
Temperature (°C)
100 125
3
VIN2 = 1.5V, VCNTL = 5V
2.5
VIN2 = 1.5V, VCNTL = 3.3V
2
-50 -25
0
25 50 75
Temperature (°C)
100 125
V_CNTL Current vs. Temperature
0.6
0.55
VIN2 = 1.8V, VCNTL = 3.3V
VIN2 = 1.8V, VCNTL = 5V
VIN2 = 2.5V, VCNTL = 3.3V
VIN2 = 2.5V, VCNTL = 5V
0.5
0.45
0.4
0.35
VIN2 = 1.5V, VCNTL = 5V
VIN2 = 1.5V, VCNTL = 3.3V
0.3
-50 -25
0
25 50 75
Temperature (°C)
100 125
V_OUT1 Short Circuit
REFEN Threshold vs. Temperature
0.6
0.55
0.5
VCNTL = 5V, Turn On
VCNTL = 5V, Turn Off
0.45
0.4
0.35
0.3
VCNTL = 3.3V, Turn On
VCNTL = 3.3V, Turn Off
0.25
-50 -25
0
25 50 75
Temperature (°C)
100 125
V_OUT2 Short Circuit
VOUT1
(1V/Div)
VOUT2
(1V/Div)
IOUT1
(1A/Div)
www.richtek.com
6
VIN1 = VIN2 = VCNTL = 3.3V
Time (1ms/Div)
IOUT2
(2A/Div)
VIN1 = VIN2 = VCNTL = 3.3V
Time (1ms/Div)
DS9005A/B-01 September 2007