rt8010b Richtek Technology Corporation, rt8010b Datasheet - Page 5

• Manufacturer Part Number: rt8010b
• Description: 1.5mhz, 800ma, High Efficiency Step-down Dc/dc Converter
• Manufacturer: Richtek Technology Corporation

Typical Operating Characteristics
DS8010B-00 July 2007
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
2.0
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
100
90
80
70
60
50
40
30
20
10
0
2.5
-40 -25 -10
0
EN Pin Threshold vs. Input Voltage
2.7
UVLO Threshold vs. Temperature
0.1
Efficiency vs. Output Current
2.9
0.2
5
3.1
V
OUT
Output Current (A)
Input Voltage (V)
20
0.3
Temperature (°C)
3.3
= 1.2V,
35
Rising
Falling
3.5
0.4
C
50
V
OUT
V
3.7
OUT
OUT
Rising
Falling
0.5
65
= 4.7μF,
= 1.2V,
= 1.2V,
3.9
80
0.6
4.1
V
V
L
95 110 125
I
I
OUT
IN
IN
OUT
= 4.7μH
0.7
= 2.5V
= 3.3V
Preliminary
4.3
= 0A
= 0A
0.8
4.5
0.612
0.610
0.608
0.606
0.604
0.602
0.600
0.598
0.596
0.594
0.592
0.590
0.588
100
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
90
80
70
60
50
40
30
20
10
0
-40 -25 -10
-40 -25 -10
0
EN Pin Threshold vs. Temperature
0.1
Efficiency vs. Output Current
0.2
V
5
5
REF
V
Output Current (A)
OUT
V
20
20
0.3
IN
Temperature (°C)
Temperature (°C)
vs. Temperature
= 1.2V,
= 3.6V, V
35
35
Rising
Falling
0.4
50
50
C
RT8010B
OUT
OUT
0.5
65
65
www.richtek.com
= 10μF,
= 1.2V,
80
80
0.6
V
V
L
I
95 110 125
95 110 125
OUT
IN
IN
= 2.2μH
0.7
= 3.3V
= 2.5V
= 0A
0.8
5