RT5112A
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
VLOAD_REG_LDO3
/
Load Regulation
--
0.5
%
0.5
IOUT = 0 to IOUT(MAX)
VLOAD_REG_LDO4
I
OUT = 50mA/300mA, VIN_VIN3 /
VLINE_REG_LDO3
/
Line Regulation
Dropout Voltage
--
--
0.5
%
0.5
VIN_VIN4 = 3.0 to 4.4V,
VO = 1.8V
VLINE_REG_LDO4
I
OUT = 300mA, VOUT_LDO3
OUT_LDO4 = 1.8V
/
VDROPLDO3
/
--
--
150
--
mV
V
VDROPLDO4
(Note 5)
Output Discharge
Resistor
RDIS_LDO3
/
10
RDIS_LDO4
VOUT
/
_LDO3
Over-Voltage Rising
Threshold Detection
OVP_R_LDO3/
OVP_R_LDO4
--
--
--
--
--
--
--
--
V
V
V
V
VOUT
_LDO4
x 120%
VOUT
/
_LDO3
Over-Voltage Falling
Threshold Detection
OVP_F_LDO3
/
VOUT
OVP_F_LDO4
_LDO4
x 110%
VOUT
/
_LDO3
Under-Voltage Rising
Threshold Detection
UVP_R_LDO3
/
VOUT
UVP_R_LDO4
_LDO4
x 90%
VOUT
/
_LDO3
Under-Voltage Falling
Threshold Detection
UVP_F_LDO3
/
VOUT
UVP_F_LDO4
_LDO4
x 80%
--
--
22
27
1
HWEN = 1.2V, IOUT = 0mA
HWEN = 0.3V (disable)
Quiescent Current
A
I
Q_LDO3/IQ_LDO4
0.1
Short Circuit Current
Limit
Isc_LDO3
/
360
--
--
mA
Isc_LDO4
0x03[3:2] = 11
(LDO3 current limit = 360mA),
0x04[3:2] = 11
(LDO4 current limit = 360mA)
ILimt_LDO3
/
Current Limit
360
415
470
mA
ILimt_LDO4
Short Protection On
Timer
tscp_ON_LDO3
tscp_ON_LDO4
tscp_OFF_LDO3
tscp_OFF_LDO4
/
--
--
2
--
--
ms
ms
Short Protection Off
Timer
/
40
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is a registered trademark of Richtek Technology Corporation.
www.richtek.com
10
DS5112A-02 August 2019
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
