RT5779A/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
RT5779A/B
RT5779A/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
RT5779A, VIN = 5V, VOUT = 3.3V,
IOUT = 0A to 5A to 0A
VOUT
(20mV/Div)
VOUT
(40mV/Div)
RT5779B, VIN = 5V, VOUT = 3.3V,
IOUT = 0A to 5A to 0A
LX
(5V/Div)
LX
(4V/Div)
IOUT
(3.5A/Div)
IOUT
(3.5A/Div)
Time (200μs/Div)
Time (400μs/Div)
Load Transient Response
Load Transient Response
RT5779A, VIN = 5V,
RT5779B, VIN = 5V, VOUT = 1.2V,
IOUT = 0A to 5A to 0A
VOUT = 1.2V, IOUT = 0A to 5A to 0A
VOUT
(20mV/Div)
VOUT
(20mV/Div)
LX
(4V/Div)
LX
(4V/Div)
IOUT
(3.5A/Div)
IOUT
(3.5A/Div)
Time (400μs/Div)
Time (200μs/Div)
Copyright 2017 Richtek Technology Corporation. All rights reserved.
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is a registered trademark of Richtek Technology Corporation.
DS5779A/B-00 October 2017
www.richtek.com
11
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
