RT9214
Typical Operating Characteristics
(VOUT = 2.5V, unless otherwise specified )
Efficiency vs. Output Current
1
Efficiency vs. Output Current
1
0.95
0.9
0.95
0.9
0.85
0.8
0.85
0.8
0.75
0.7
0.75
0.7
0.65
0.65 VCC = 5V
VCC = 12V
V
IN = 5V
VIN = 5V
0.6
0.6
0
5
10
15
20
25
0
5
10
15
20
25
Output Current (A)
Output Current (A)
Reference Voltage vs. Temperature
Frequency vs. Temperature
0.812
0.81
350
330
310
290
270
250
VCC = 12V
VIN = 5V
0.808
0.806
0.804
0.802
0.8
0.798
-40
-10
20
50
80
110
140
-40 -25 -10
5
20 35 50 65 80 95 110 125
(°C)
Temperature
Temperature
(°C)
POR vs. Temperature
VCC Switching
4.75
4.5
Rising
(100mV/Div)
(10A/Div)
VOUT
IOUT
4.25
4
UGATE
VCC
Falling
(20V/Div)
(10V/Div)
3.75
3.5
VCC = 12Vto 5V
IOUT= 10A
VIN = 5V
-40
-10
20
50
80
110
140
Time (10ms/Div)
Temperature
(°C)
DS9214-13 September 2007
www.richtek.com
6
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
