RT5771A
UVLO Threshold vs. Temperature
2.8
2.7
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
-50
-25
0
25
50
75
100
125
-50
-25
0
25
50
75
100
125
EN Threshold Voltage vs. Temperature
UVLO Threshold (V)
2.6
2.5
2.4
2.3
2.2
2.1
2.0
1.9
1.8
Rising
EN Threshold Voltage (V)
Rising
Falling
Falling
Temperature (°C)
Temperature (°C)
Load Transient Response
Load Transient Response
V
OUT
(50mV/Div)
V
OUT
(100mV/Div)
I
OUT
(2A/Div)
V
IN
= 5V, V
OUT
= 1.05V, I
OUT
= 1A to 4A
I
OUT
(2A/Div)
V
IN
= 5V, V
OUT
= 3.3V, I
OUT
= 1A to 4A
Time (100μs/Div)
Time (100μs/Div)
Output Ripple Voltage
Output Ripple Voltage
V
OUT
(10mV/Div)
V
OUT
(10mV/Div)
V
SW
(5V/Div)
V
IN
= 5V, V
OUT
= 1.05V, I
OUT
= 4A
V
SW
(5V/Div)
V
IN
= 5V, V
OUT
= 3.3V, I
OUT
= 4A
Time (500ns/Div)
Time (500ns/Div)
Copyright
©
2019 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS5771A-02 June 2019
www.richtek.com
7
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