rt8010 Richtek Technology Corporation, rt8010 Datasheet - Page 6

• Manufacturer Part Number: rt8010
• Description: 1.5mhz, High Efficiency Step-down Dc/dc Converter
• Manufacturer: Richtek Technology Corporation

RT8010/A
Typical Operating Characteristics
www.richtek.com
6
1.20
1.15
1.10
1.05
1.00
0.95
0.90
0.85
0.80
0.75
0.70
0.65
0.60
100
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
2.5
0
0
V
V
V
EN Pin Threshold vs. Input Voltage
0.1
0.1
2.8
IN
IN
IN
Efficiency vs. Output Current
= 3.6V
= 4.2V
= 5.0V
Efficiency vs. Output Current
0.2
0.2
3.1
V
0.3
0.3
3.4
V
OUT
Output Current (A)
Output Current (A)
OUT
Input Voltage (V)
= 3.3V,
0.4
0.4
3.7
= 1.2V,
Rising
0.5
0.5
4
C
Falling
C
OUT
V
OUT
0.6
0.6
4.3
OUT
= 4.7μF,
= 10μF,
= 1.2V,
0.7
0.7
4.6
V
V
V
0.8
0.8
4.9
L
IN
IN
IN
L
I
OUT
= 4.7μH
= 2.2μH
= 5.0V
= 3.3V
= 2.5V
0.9
0.9
5.2
= 0A
5.5
1
1
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
100
90
80
70
60
50
40
30
20
10
0
-40 -25 -10
-40 -25 -10
0
EN Pin Threshold vs. Temperature
0.1
UVLO Voltage vs.Temperature
Efficiency vs. Output Current
0.2
5
5
V
0.3
Temperature (°C)
Temperature
OUT
Falling
Output Current (A)
Falling
V
20
20
IN
= 1.2V,
0.4
= 3.6V, V
DS8010/A-02 March 2007
35
35
Rising
0.5
C
50
50
OUT
V
(°C)
0.6
OUT
OUT
Rising
65
65
= 4.7μF,
= 1.2V,
= 1.2V,
0.7
80
80
V
V
V
0.8
L
IN
IN
IN
95 110 125
I
95 110 125
I
OUT
OUT
= 4.7μH
= 5.0V
= 3.3V
= 2.5V
0.9
= 0A
= 0A
1