RT6158A
Typical Operation Characteristics
Efficiency
100
3.0
2.5
Load Regulation
V
IN
= 3.5V
85
4.2V
2.0
Regulation (%)
Efficiency (%)
V
IN
= 4.2V
V
IN
= 3.8V
70
3.8V
1.5
1.0
V
IN
= 3V
3.5V
0.5
0.0
55
V
OUT
= 3.5V
40
0.00001 0.0001
0.001
0.01
0.1
1
10
-0.5
-1.0
1
10
3V
V
OUT
= 3.5V
100
1000
10000
Load Current (A)
Output Current (mA)
Line Regulation
3.64V
V
OUT
Ripple Voltage
V
OUT
(50mV/Div)
V
IN
= 3V, V
OUT
= 3.5V, I
OUT
= 0A to 2A
3.60V
OutputVoltage(V)
0A
3.56V
0.5A
3.52V
0.1A
2A
V
OUT
= 3.5V
3.48V
2.5
3.0
3.5
4.0
4.5
5.0
LX1
(5V/Div)
LX2
(5V/Div)
I
OUT
(500mA/Div)
LX1
LX2
I
OUT
Time (5ms/Div)
Input Voltage(V)
V
OUT
Ripple Voltage
V
OUT
(50mV/Div)
V
IN
= 4.5V, V
OUT
= 3.5V,
I
OUT
= 0A to 2A
Load Transient
V
IN
= 4.2V, V
OUT
= 3.5V, I
OUT
= 0A to 2A,
t
R
= t
F
= 1μs
V
OUT
(100mV/Div)
LX1
(5V/Div)
LX2
(5V/Div)
I
OUT
(500mA/Div)
LX1
LX2
I
OUT
I
OUT
(1A/Div)
Time (5ms/Div)
Time (50μs/Div)
Copyright
©
2019 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS6158A-05 August 2019
www.richtek.com
7
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
