RT7251A/B
Current Limit vs. Input Voltage
Current Limit vs. Input Voltage
3.0
2.8
2.6
2.4
2.2
2.0
3.0
2.8
2.6
2.4
2.2
2.0
RT7251A, VOUT = 3.3V
11.8 14.4 17
RT7251B, VOUT = 3.3V
11.8 14.4 17
4
6.6
9.2
4
6.6
9.2
Input Voltage (V)
Input Voltage (V)
Current Limit vs. Temperature
Current Limit vs. Temperature
3.0
2.8
2.6
2.4
2.2
2.0
3.0
2.8
2.6
2.4
2.2
2.0
RT7251A, VIN = 12V, VOUT = 3.3V
RT7251B, VIN = 12V, VOUT = 3.3V
-50
-25
0
25
50
75
100
125
-50
-25
0
25
50
75
100
125
Temperature (°C)
Temperature (°C)
Load Transient Response
Load Transient Response
RT7251A
RT7251B
VOUT
(100mV/Div)
VOUT
(200mV/Div)
IOUT
(1A/Div)
IOUT
(1A/Div)
VIN = 12V, VOUT = 3.3V, IOUT = 0.3A to 1.5A
VIN = 12V, VOUT = 3.3V, IOUT = 0.3A to 1.5A
Time (100μs/Div)
Time (100μs/Div)
Copyright 2012 Richtek Technology Corporation. All rights reserved.
©
is a registered trademark of Richtek Technology Corporation.
DS7251A/B-01 April 2012
www.richtek.com
9
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
