RT6343
Typical Operating Characteristics
Efficiency vs. Output Current
Efficiency vs. Output Current
100
100
90
80
70
60
50
40
30
20
10
0
90
VIN = 14V
VIN = 24V
VIN = 36V
VIN = 42V
80
70
60
50
40
30
20
10
0
Freq = 100k
Freq = 500k
Freq = 1M
Freq = 2.5M
VIN = 12V, VOUT = 5V
fSW = 2.5MHz, L = VCMT053T-1R5MN5, 1.5μH
f
SW = 1MHz, VCMT063T-4R7MN5, 4.7μH
VOUT = 12V, fsw = 400kHz
f
SW = 400kHz, L = VCHA075D-100MS6, 10μH
fSW = 100kHz, L = 74435573300, 33μH
L = 7443551221, 22μH
0.001
0.01
0.1
1
10
0.001
0.01
0.1
1
10
Output Current (A)
Output Current (A)
Efficiency vs. Output Current
Efficiency vs. Output Current
100
90
80
70
60
50
40
30
20
10
0
100
90
80
70
60
50
40
30
20
10
0
VIN = 8V
VIN = 4.5V
VIN = 8V
VIN = 12V
VIN = 13.5V
VIN = 18V
VIN = 24V
VIN = 36V
VIN = 42V
VIN = 12V
VIN = 13.5V
VIN = 18V
VIN = 24V
VIN = 36V
VIN = 42V
VOUT = 5V, fSW = 400kHz
L = VCHA075D-100MS6, 10μH
VOUT = 3.3V, fsw = 300kHz
L = VCHA075D-100MS6 10μH
0.001
0.01
0.1
1
10
0.001
0.01
0.1
1
10
Output Current (A)
Output Current (A)
Output Voltage vs. Output Current
Output Voltage vs. Input Voltage
5.15
5.10
5.05
5.00
4.95
4.90
4.85
5.08
5.07
5.06
5.05
5.04
5.03
5.02
5.01
5.00
4.99
4.98
VIN = 12V, VOUT = 5V
2.5 3.5
IOUT = 3.5A, VOUT = 5V
27 32 37 42
0
0.5
1
1.5
2
3
7
12
17
22
Input Voltage (V)
Output Current (A)
Copyright 2019 Richtek Technology Corporation. All rights reserved.
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is a registered trademark of Richtek Technology Corporation.
www.richtek.com
16
DS6343-00 October 2019
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
