RT6158H Datasheet, PDF (6/12 Pages) Richtek Technology Corporation – High Efficiency, Low Quiescent, 3A Buck-Boost Converter

RT6158H
Typical Operating Characteristics
Efficiency
100
85
70
VIN = 4.2V
VIN = 3.8V
VIN = 3.5V
55
VIN = 3.0V
40
0.00001 0.0001
0.001 0.01 0.1
Load Current (A)
VOUT = 3.5V
1
10
3.0
2.5
2.0
1.5
1.0
0.5
0.0
-0.5
-1.0
1
3.64V
3.62V
3.60V
0.0A
3.58V
3.56V
3.54V
3.52V
0.1A
0.5A
1.5A
3.0A
3.50V
2.5
3.0
Line Regulation
VOUT
(50mV/Div)
VOUT = 3.5V
LX1
(4V/Div)
LX2
(5V/Div)
IOUT
(500mA/Div)
X = IOUT,
Y = VOUT
(50mV/Div)
3.5
4.0
4.5
5.0
5.5
Input Voltage (V)
VOUT
(50mV/Div)
V_OUT Ripple Voltage
VOUT
(430mV/Div)
Load Regulation
4.2V
3.8V
3.5V
3.0V
VOUT = 3.5V
10
100
1000
Output Current (mA)
10000
V_OUT Ripple Voltage
VIN = 3V, VOUT = 3.5V, IOUT = 0A to 3A
Time (4ms/Div)
Load Transient
LX1
(4V/Div)
LX2
(5V/Div)
IOUT
(500mA/Div)
X = IOUT,
Y = VOUT
(50mV/Div)
VIN = 4.5V, VOUT = 3.5V, IOUT = 0A to 3A
Time (4ms/Div)
IOUT
(1A/Div)
VIN = 3.6V, VOUT = 3.5V,
tR = tF = 1μs, IOUT = 0A to 3A
Time (75μs/Div)
Copyright ©2017 Richtek Technology Corporation. All rights reserved.
www.richtek.com
6
is a registered trademark of Richtek Technology Corporation.
DS6158H-00 March 2017