RT5707/A
Quiescent Current
Shutdown Current
1.0
0.9
1.0
0.9
Shutdown Current (μA)1
V
OUT
= 1.8V
Quiescent Current (μA)
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
2.2 2.5 2.8 3.1 3.4 3.7 4.0 4.3 4.6 4.9 5.2 5.5
Switching
Non-switching
2.2 2.5 2.8 3.1 3.4 3.7 4.0 4.3 4.6 4.9 5.2 5.5
Input Voltage (V)
Input Voltage(V)
PSM Mode Operation
V
OUT_AC
(50mV/Div)
V
OUT_AC
(50mV/Div)
V
SW
(5V/Div)
V
IN
= 5V, V
OUT
= 3.3V, I
OUT
= 50mA
PWM Mode Operation
V
SW
(5V/Div)
V
IN
= 5V, V
OUT
= 3.3V, I
OUT
= 300mA
I
L
(200mA/Div)
Time (4μs/Div)
I
L
(200mA/Div)
Time (400ns/Div)
Power On
with Resistor Load
Power On with
Resistor Load
V
OUT
(2V/Div)
V
EN
(5V/Div)
V
OUT
(2V/Div)
V
EN
(5V/Div)
V
IN
= 5V, V
OUT
= 3.3V, I
OUT
about = 100mA (EN enable)
V
IN
= 3.6V, V
OUT
= 3.3V, I
OUT
about = 300mA (EN enable)
I
L
(500mA/Div)
Time (400μs/Div)
I
L
(500mA/Div)
Time (400μs/Div)
Copyright
©
2019 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS5707/A-03 February 2019
www.richtek.com
9
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
