RT5112
Parameter
Inductor Valley Current
Limit
Symbol
I
CL_valley_BST
Test Conditions
V
OUT_BST
= 5V
Min
2.5
Typ
2.8
Max
3.1
Unit
A
Low Dropout Voltage Regulator LDO1 and LDO2 (V
IN_VIN12
= V
OUT_LDO1
/V
OUT_LDO2
+ 1V, V
HWEN
= 1.2V, I
OUT
= 1mA, C
IN
= 2.2F, C
OUT
= 2.2F)
Input Voltage Range
Output Voltage Range
Output Voltage Step
Maximum Output Current
V
IN_VIN12
V
OUT_LDO1
/
V
OUT_LDO2
I
OUT_LDO1
/
I
OUT_LDO2
t
SS_LDO1
/
Time from V
OUT_LDO1
/
V
OUT_LDO2
start rising to 90%
nominal value, V
OUT_LDO1
/
V
OUT_LDO2
= 2.8V, no load
All output range of V
OUT_LDO1
/
V
OUT_LDO2
, I
OUT
= I
OUT(MAX)
I
OUT
= 0 to I
OUT(MAX)
I
OUT
= 50mA to 300mA, V
IN_VIN12
= 3.0V to 4.4V, V
OUT_LDO1
/
V
OUT_LDO2
= 2.8V
I
OUT
= 300mA, V
OUT_LDO1
/
V
OUT_LDO2
= 2.8V
(Note 5)
1.9
0.6
--
300
--
2.8
25
--
5.5
3.775
--
--
V
V
mV
mA
Soft-Start Time
t
SS_LDO2
V
OUT_ACC_LDO1
/
V
OUT_ACC_LDO2
V
LOAD_REG_LDO1
/
V
LOAD_REG_LDO2
V
LINE_REG_LDO1
/
V
LINE_REG_LDO2
V
DROP_LDO1
/
V
DROP_LDO2
R
DIS_LDO1
/
R
DIS_LDO2
OVP
_R_LDO1
/
OVP
_R_LDO2
--
--
150
s
DC Output Voltage
Accuracy
Load Regulation
2
0.5
--
--
2
0.5
%
%
Line Regulation
0.5
--
0.5
%
Dropout Voltage
Output Discharge
Resistor
--
--
250
mV
--
10
V
OUT_
LDO1
/
V
OUT_
LDO2
--
Over-Voltage Rising
Threshold Detection
--
--
V
x 120%
V
OUT_
LDO1
/
V
OUT_
LDO2
Over-Voltage Falling
Threshold Detection
OVP
_F_LDO1
/
OVP
_F_LDO2
--
--
V
x 110%
V
OUT_
LDO1
/
V
OUT_
LDO2
Under-Voltage Rising
Threshold Detection
UVP
_R_LDO1
/
UVP
_R_LDO2
--
--
V
x 90%
Copyright
©
2019 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
8
DS5112-03 August 2019
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
