RT5035A/B
Parameter
Symbol
Test Conditions
Min
Typ
Max Unit
CH3 Maximum Duty Cycle
(Step-Down)
--
--
100
100
100
97
%
%
%
%
%
CH4 Maximum Duty Cycle
(Step-Down)
--
--
--
--
CH5 Maximum Duty Cycle
(Step-Down)
CH7 Maximum Duty Cycle
(WLED)
Step-Up mode
91
--
93
--
CH10 Maximum Duty Cycle
(Step-Down)
100
Feedback and Output Regulation Voltage
A1.VOUT1 = 0 to 7
A1.VOUT1 = 8 to 15
1.5
2
--
--
1.5
2
%
%
VOUT1 Accuracy
The VOUTx typical values are
listed next.
VOUT2, 3, 10 Accuracy
VOUT4 Accuracy
1.5
--
1.5
%
A2.VOUT4 = 0 to 3 (near 1.8V)
A2.VOUT4 = 4 to 7 (near 1.5V)
A2.VOUT5 = 0 to 3
1.5
2
--
--
--
--
--
--
--
--
1.5
2
%
%
%
%
%
%
%
%
1.5
2
1.5
2
VOUT5 Accuracy
VOUT6 Accuracy
VOUT8 Accuracy
A2.VOUT5 = 4 to 7
A3.VOUT6 = 0 to 8
2
2
A3.VOUT6 = 9 to 15
A4.VOUT8 = 0 to 3
2
2
2
2
A4.VOUT8 = 4 to 7
2
2
Feedback Regulation Voltage @
FB7
0.285
3.01
0.3
3.1
0.315
3.19
V
V
VDDM Voltage
(CH9 LDO Output Regulation)
Power Switch Ron and Current Limit
CH1 On Resistance of MOSFET RDS(ON)_1
CH1 Current Limitation (Step-Up) ILIM_1
P-MOSFET, VOUT1 = 3.3V
N-MOSFET, VOUT1 = 3.3V
--
--
150
100
3.5
200
150
4.5
m
m
A
2.5
PMOSFET (PVDD2 LX2A),
PVDD2 = VOUT2 = 3.3V
--
--
100
200
150
100
3
150
300
200
150
4
m
m
m
m
A
CH2 On Resistance of MOSFET RDS(ON)_2A
CH2 On Resistance of MOSFET RDS(ON)_2B
NMOSFET (LX2A GND),
PVDD2 = VOUT2 = 3.3V
PMOSFET (LX2B VOUT2),
PVDD2 = VOUT2 = 3.3V
--
NMOSFET (LX2B GND),
PVDD2 = VOUT2 = 3.3V
--
Both PMOS (PVDD2 LX2A)
and NMOS (LX2B GND)
CH2 Current Limitation
ILIM_2
2.2
Copyright © 2017 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS5035A/B-02 February 2017
www.richtek.com
9
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
