RT6203B
UVLO Voltage vs. Temperature
EN Pin Threshold vs. Temperature
4.40
4.20
4.00
3.80
3.60
3.40
3.20
1.60
1.55
1.50
1.45
1.40
1.35
1.30
1.25
1.20
1.15
1.10
1.05
1.00
Rising
Falling
Rising
Falling
VOUT = 1.2V, IOUT = 0A
50 75 100 125
VIN = 12V, VOUT = 1.2V, IOUT = 0A
-50
-25
0
25
-50
-25
0
25
50
75
100
125
Temperature (°C)
Temperature (°C)
Load Transient Response
Output Ripple Voltage
VIN = 12V, VOUT = 1.2V, IOUT = 0A to 5A,
VIN = 12V, VOUT = 1.2V, IOUT = 0A,
L = 1.5μH, COUT = 22μF x 2
L = 1.5μH, COUT = 22μF x 2
VOUT
(20mV/Div)
VOUT
(20mV/Div)
IOUT
(2A/Div)
VSW
(5V/Div)
Time (100μs/Div)
Time (2μs/Div)
Output Ripple Voltage
Power On from EN
VIN = 12V, VOUT = 1.2V, IOUT = 5A,
L = 1.5μH, COUT = 22μF x 2
VOUT
(20mV/Div)
VOUT
(400mV/Div)
VSW
(5V/Div)
VEN
(3V/Div)
VSW
(5V/Div)
VIN = 12V, VOUT = 1.2V,
IOUT = 5A
IOUT
(5A/Div)
Time (2μs/Div)
Time (2ms/Div)
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12
DS6203B-01 July 2017
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
