RT6343
Current Limit vs. Input Voltage
Switching Frequency vs. Temperature
7.0
6.5
6.0
5.5
5.0
4.5
4.0
120
115
110
105
100
95
VIN = 12V, VOUT = 5V
VOUT = 5V, fSW = 500kHz, L = 7.8μH
I
OUT = 2.5A, RRT/SYNC = 1MΩ
90
7
12
17
22
27
32
37
42
-50
-25
0
25 50 75 100 125
Input Voltage (V)
Temperature (°C)
Switching Frequency vs. Temperature
Switching Frequency vs. Temperature
550
530
510
490
470
450
2700
2600
2500
2400
2300
2200
VIN = 12V, VOUT = 5V
IOUT = 2.5A, RRT/SYNC = 37.4kΩ
V
= 12V, V
= 5V
OUT
IN
I
= 2.5A, R
= 200kΩ
OUT
25
RT/SYNC
-50
-25
0
50
75
100
125
-50
-25
0
25
50
75
100
125
Temperature (°C)
Temperature (°C)
Quiescent Current vs. Temperature
Shutdown Current vs. Temperature
135
125
115
105
95
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
85
75
VIN = 12V
VIN = 12V
100 125
65
-50
-25
0
25
50
75
100
125
-50
-25
0
25
50
75
Temperature (°C)
Temperature (°C)
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©
is a registered trademark of Richtek Technology Corporation.
DS6343-00 October 2019
www.richtek.com
17
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