RT5021
Parameter
Supply Current
Shutdown Supply Current into BAT
(Include I
DDQ
of RTC LDO)
CH1 + CH2 + CH3 + CH4
Supply Current
CH5 Supply Current
CH6 Supply Current
CH7 in Step-Up Mode Supply
Current
Symbol
Test Conditions
EN = L, and PMU off,
BAT = 4.2V
Non switching, EN = 3.3V
Non switching, A2.EN5 = 1
A2.EN6 = 1
Non switching,
A2.EN7_DIM7 [4:0] = 5’b11111
A2.EN7_DIM7 [4:0] = 5’b11111
PVD7 = 5V
A2.EN8 = 1
Min
Typ
Max
Unit
μA
μA
μA
μA
μA
μA
μA
kHz
kHz
I
OFF-BAT
I
Q1234
I
Q5
I
Q6
I
Q7b
--
--
--
--
--
--
--
1800
900
10
--
--
--
--
--
--
2000
1000
20
2000
500
100
500
400
100
2200
1100
CH7 in Current Source mode Supply
I
Q7c
Current
CH8 Supply Current
Oscillator
CH1, 3, 4, 5 Operation Frequency
CH2, 7 Operation Frequency
CH1 LV Sync Step-Up
Output Voltage Accuracy at PVD1
Minimum On Time for PSM
Soft-Start Time
Maximum Duty Cycle (Step-Up)
On Resistance of MOSFET
Current Limitation (Step-Up)
Over Voltage Protection at PVD1
Under Voltage Protection -1 at
PVD1
Under Voltage Protection -2 at
PVD1
Over Load Protection at PVD1
Off Discharge Current at PVD1
Discharge Finishing Threshold at
PVD1
CH2 LV Sync Step-Up/Down
Feedback Regulation Voltage at
FB2
Soft-Start Time
Maximum Duty Cycle
R
DS(ON)_P
R
DS(ON)_N
I
LIM_1
I
Q8
f
OSC_1345
f
OSC_27
CH7 in Step-Up mode
Target voltage defined at
A4.VOUT1 [3:0]
PVD1 = 0 to 5V
PVD1 < Target defined in
A4.VOUT1 [3:0]
P-MOSFET, PVD1 = 3.3V
N-MOSFET, PVD1 = 3.3V
−1.5
--
--
80
--
--
2.2
5.82
--
--
100
4
83
200
150
3
6
SYS
−
0.8
Target
x 0.5
Target
−
0.6
20
0.6
1.5
--
--
86
300
250
4
6.18
--
--
--
--
--
%
ns
ms
%
mΩ
mΩ
A
V
V
V
V
mA
V
Target Voltage is defined in
A4.VOUT1 [3:0]
Target Voltage is defined in
A4.VOUT1 [3:0]
PVD1 = 5V, SYS = 3.3V
--
--
--
--
A4.FB2 [2:0] = 3’b100
FB2 = 0 to 0.8V
LX2B
LX2A
LX2A
−
GND,
N-MOSFET PVD2 = 3.3V
PVD2
−
LX2A,
P-MOSFET PVD2 = 3.3V
0.788
--
--
--
--
--
0.8
4
55
--
200
150
0.812
--
--
100
300
250
V
ms
%
%
mΩ
mΩ
On Resistance of MOSFET
R
DS(ON)_2A
Copyright
©
2013 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS5021-01 April 2013
www.richtek.com
9
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
