RT6158A
Typical Operation Characteristics
Efficiency
Load Regulation
100
3.0
2.5
2.0
1.5
1.0
0.5
0.0
-0.5
-1.0
VIN = 3.5V
4.2V
3.8V
85
VIN = 4.2V
VIN = 3.8V
70
VIN = 3V
3.5V
55
3V
VOUT = 3.5V
VOUT = 3.5V
1000 10000
40
0.00001 0.0001 0.001
0.01
0.1
1
10
1
10
100
Load Current (A)
Output Current (mA)
VOUT Ripple Voltage
Line Regulation
3.64V
3.60V
3.56V
3.52V
3.48V
VIN = 3V, VOUT = 3.5V, IOUT = 0A to 2A
VOUT
(50mV/Div)
0A
LX1
LX2
0.5A
0.1A
LX1
(5V/Div)
LX2
(5V/Div)
IOUT
2A
VOUT = 3.5V
4.5
IOUT
(500mA/Div)
2.5
3.0
3.5
4.0
5.0
Time (5ms/Div)
Input Voltage(V)
VOUT Ripple Voltage
Load Transient
VIN = 4.5V, VOUT = 3.5V,
IOUT = 0A to 2A
VIN = 4.2V, VOUT = 3.5V, IOUT = 0A to 2A,
VOUT
(50mV/Div)
tR = tF = 1μs
VOUT
(100mV/Div)
LX1
(5V/Div)
LX2
LX1
LX2
IOUT
(5V/Div)
IOUT
IOUT
(1A/Div)
(500mA/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 ]
