RT5789A/B
UVLO vs. Temperature
EN Voltage Threshold vs. Temperature
2.45
2.40
2.35
2.30
2.25
2.20
2.15
2.10
2.05
2.00
1.95
0.90
0.85
0.80
0.75
0.70
0.65
0.60
0.55
0.50
Rising
Rising
Falling
Falling
RT5789A/B
RT5789A/B
100 125
-50
-25
0
25
50
75
-50
-25
0
25
50
75
100
125
Temperature (°C)
Temperature (°C)
Load Transient Response
Load Transient Response
VOUT
(20mV/Div)
VOUT
(40mV/Div)
RT5789B, VIN = 5V, VOUT = 3.3V,
RT5789A, VIN = 5V, VOUT = 3.3V,
IOUT = 0A to 6A to 0A
IOUT = 0A to 6A to 0A
LX
(5V/Div)
LX
(4V/Div)
IOUT
(4A/Div)
IOUT
(4A/Div)
Time (400μs/Div)
Time (200μs/Div)
Load Transient Response
Load Transient Response
RT5789A, VIN = 5V, VOUT = 1.2V,
IOUT = 0A to 6A to 0A
RT5789B, VIN = 5V, VOUT = 1.2V,
OUT = 0A to 6A to 0A
I
VOUT
(20mV/Div)
VOUT
(20mV/Div)
LX
(4V/Div)
LX
(4V/Div)
IOUT
(4A/Div)
IOUT
(4A/Div)
Time (400μs/Div)
Time (200μs/Div)
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is a registered trademark of Richtek Technology Corporation.
DS5789A/B-02 March 2018
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11
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