RT2857B
Input UVLO vs. Temperature
Enable Threshold vs. Temperature
4.8
4.6
4.4
4.2
4.0
3.8
1.350
1.325
1.300
1.275
1.250
1.225
1.200
1.175
1.150
1.125
Rising
Rising
Falling
Falling
VEN = 3.3V
VEN = 3.3V
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
(1V/Div)
VOUT
(1V/Div)
IOUT
(2A/Div)
IOUT
(2A/Div)
VIN = 12V, VOUT = 3.3V, IOUT = 1A to 6A
VIN = 12V, VOUT = 3.3V, IOUT = 0A to 6A
Time (100μs/Div)
Time (100μs/Div)
Load Transient Response
Load Transient Response
VOUT
VOUT
(500mV/Div)
(500mV/Div)
IOUT
(2A/Div)
IOUT
(1A/Div)
VIN = 12V, VOUT = 3.3V, IOUT = 3A to 6A
VIN = 12V, VOUT = 3.3V, IOUT = 0A to 3A
Time (100μs/Div)
Time (100μs/Div)
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is a registered trademark of Richtek Technology Corporation.
DS2857B-06 June 2019
www.richtek.com
11
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