RT8268 RICHTEK [Richtek Technology Corporation], RT8268 Datasheet - Page 7

• Manufacturer Part Number: RT8268
• Description: 2A, 24V, 400kHz Step-Down Converter
• Manufacturer: RICHTEK [Richtek Technology Corporation]

(200mV/Div)
DS8268-02 March 2011
V
(1A/Div)
OUT
3.298
3.296
3.294
3.292
3.290
3.288
3.286
3.284
I
OUT
404
402
400
398
396
394
392
3
3
Switching Frequency vs. Input Voltage
Output Voltage vs. Input Voltage
6
6
Load Transient Response
9
V
9
IN
Input Voltage (V)
Input Voltage (V)
Time (100μs/Div)
= 12V, V
12
12
OUT
V
OUT
15
15
I
OUT
= 3.3V, I
= 3.3V, I
= 2A
18
18
OUT
OUT
I
I
= 0 to 2A
OUT
OUT
21
21
= 0.3A
= 0A
= 1A
24
24
(100mV/Div)
(10mV/Div)
(10V/Div)
V
V
(1A/Div)
(1A/Div)
OUT
OUT
V
I
OUT
I
SW
L1
420
410
400
390
380
370
360
-50
Switching Frequency vs. Temperature
-25
Load Transient Response
Output Ripple Voltage
V
0
IN
= 12V, V
Time (100μs/Div)
V
Time (1μs/Div)
Temperature
IN
25
= 12V, V
OUT
V
OUT
50
= 3.3V, I
OUT
= 3.3V, I
RT8268
(°C)
www.richtek.com
= 3.3V, I
75
OUT
V
OUT
= 1A to 2A
IN
V
OUT
100
IN
= 23V
= 0.3A
= 12V
= 2A
125
7