RT7231/32/33/34
EN Threshold Voltage vs. Temperature
UVLO Voltage vs. Temperature
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
4.0
3.9
3.8
3.7
3.6
3.5
3.4
Rising
Falling
Rising
Falling
VIN = 12V, VOUT = 1.05V
-50
-25
0
25
50
75
100
125
-50
-25
0
25
50
75
100
125
Temperature (°C)
Temperature (°C)
Power Good from EN Turn On
Power Good from EN Turn Off
RT7231/32
RT7231/32
VEN
VEN
(5V/Div)
(5V/Div)
VPGOOD
(5V/Div)
VPGOOD
(5V/Div)
VOUT
VOUT
(1V/Div)
(1V/Div)
IOUT
IOUT
VIN = 12V, VOUT = 1.05V, IOUT = 4A
VIN = 12V, VOUT = 1.05V, IOUT = 4A
Time (2.5ms/Div)
(5A/Div)
(5A/Div)
Time (250μs/Div)
Copyright 2013 Richtek Technology Corporation. All rights reserved.
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is a registered trademark of Richtek Technology Corporation.
DS7231/32/33/34-00 March 2013
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11
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