RT8259 RICHTEK [Richtek Technology Corporation], RT8259 Datasheet - Page 5

• Manufacturer Part Number: RT8259
• Description: 1.2A, 24V, 1.4MHz Step-Down Converter
• Manufacturer: RICHTEK [Richtek Technology Corporation]

Typical Operating Characteristics
DS8259-03 March 2011
3.333
3.328
3.323
3.318
3.313
3.308
3.303
3.298
1.55
1.50
1.45
1.40
1.35
1.30
1.25
1.20
1.15
100
90
80
70
60
50
40
30
20
10
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
0
4
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
Output Voltage vs. Load Current
6.5
Frequency vs. Input Voltage
Efficiency vs. Load Current
V
V
IN
IN
= 24V
= 12V
9
Load Current (A)
Load Current (A)
Input Voltage (V)
11.5
14
V
OUT
16.5
= 3.3V, I
19
OUT
V
V
V
1
OUT
IN
IN
1
21.5
= 0.3A
= 12V
= 24V
1.1 1.2
1.1 1.2
= 5V
24
3.38
3.36
3.34
3.32
3.30
3.28
3.26
3.24
3.22
1.55
1.50
1.45
1.40
1.35
1.30
1.25
1.20
1.15
100
90
80
70
60
50
40
30
20
10
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
-50
-50
Output Voltage vs. Temperature
-25
-25
Frequency vs. Temperature
Efficiency vs. Load Current
0
0
Temperature (°C)
Temperature (°C)
V
Load Current (A)
IN
= 12V, V
25
25
50
OUT
50
RT8259
= 3.3V, I
www.richtek.com
75
75
V
V
OUT
V
OUT
V
V
IN
I
1
IN
OUT
IN
IN
100
100
= 12V
= 24V
= 3.3V
= 0.3A
= 12V
= 24V
1.1 1.2
= 0A
125
125
5