RK808
Power Management System
Power Management System
Technical Specifications
PRELIMINARY
V1.0.1
2015-1-5
Fuzhou Rockchip Electronics Co.Ltd
Version 1.0.1
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RK808
Power Management System
REVISION HISTORY
Date
Revision
Description
2013-03-02 0.1
Initial preliminary version
2013-03-25 0.2
Initial complete version
2013-08-31 0.3
Updated register map
2013-12-4
Changed package information
0.4
2014-02-22 0.5
Changed some details information
2014-03-14 0.6
Adding some information
2014-06-16 0.7
1.adding ordering information
2.deleted some RDSON information
2014-09-13 0.8
1.revised the packaging information
2.adding the BOOT11 timing sequence
3.Revised the BUCK1/2 output voltage range from
0.7v~1.5v to 0.7125v~1.5V
2014-12-30 1.0
1.
adding
ordering
RK808-B/RK808-C
2.adding BOOT11 start
RK808-B/RK808-C
3. adding
2014-01-05 1.0.1
Version 1.0.1
information
up
sequence
for
of
1.changing the BUCK1/BUCK2 Output voltage
transition rate
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RK808
Power Management System
TABLE OF CONTENTS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
OVERVIEW.................................................................................................... 8
FEATURES .................................................................................................... 8
BLOCK DIAGRAM ........................................................................................... 9
TYPICAL APPLICATION DIAGRAMS .................................................................. 10
ORDERING INFORMATION ............................................................................. 12
ABSOLUTE MAXIMUM RATINGS ...................................................................... 12
RECOMMENDED OPERATING CONDITIONS....................................................... 12
ELECTRICAL CHARACTERISTICS ..................................................................... 13
STATE MACHINE DESCRIPTION ...................................................................... 23
9.1
STATE MACHINE DESCRIPTION ............................................................ 23
9.2
DEVICE POWER-ON ENABLE CONDITIONS............................................. 23
9.3
DEVICE POWER-ON DISABLE CONDITIONS ........................................... 24
9.4
DEVICE SLEEP ENABLE CONDITIONS.................................................... 24
POWER SEQUENCE .................................................................................. 25
10.1 BOOT1=0, BOOT0 = 0 ........................................................................ 26
10.2 BOOT1=0, BOOT0 = 1 ........................................................................ 26
10.3 BOOT1=1, BOOT0 = 0 ........................................................................ 27
10.4 BOOT1=1, BOOT0 = 1(RK808-B/RK808-C) ........................................... 27
10.5 BOOT TIMING CHARACTERISTIC .......................................................... 28
POWER CONTROL TIMING ........................................................................ 29
11.1 DEVICE TURN-ON WITH PLUG_IN ........................................................ 29
11.2 DEVICE TURN OFF WITH FALLING INPUT VOLTAGE ................................. 30
11.3 TIMING CHARACTERISTICS(Vin rising/falling and Plug-in) ....................... 30
11.4 DEVICE STATE CONTROL THROUGH PWRON SIGNAL .............................. 31
11.5 TIMING CHARACTERISTICS (PWRON, DEV_OFF) .................................... 32
11.6 DEVICE SLEEP STATE CONTROL ........................................................... 32
11.7 TIMING CHARACTERISTICS (SLEEP) ..................................................... 33
PIN ASSIGNMENT .................................................................................... 33
PINOUT DEFINITION ................................................................................ 34
APPLICATION NOTE ................................................................................. 38
REGISTER DEFINITION ............................................................................ 38
15.1 REGISTER SUMMARY .......................................................................... 38
15.2 REGISTER DESCRIPTION .................................................................... 40
15.2.1
RTC REGISTERS ...................................................................... 40
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RK808
Power Management System
15.2.1.1 SECONDS_REG : RTC SECOND Register ................................ 40
15.2.1.2 MINUTES_REG : RTC MINUTE Register .................................. 40
15.2.1.3 HOURS_REG : RTC HOUR Register ....................................... 41
15.2.1.4 DAYS_REG : RTC DAY Register ............................................. 41
15.2.1.5 MONTHS_REG : RTC MONTH Register ................................... 41
15.2.1.6 YEARS_REG : RTC YEAR Register ......................................... 42
15.2.1.7 WEEKS_REG : RTC WEEK Register ....................................... 42
15.2.1.8 ALARM_SECONDS_REG : RTC ALARM SECOND Register .......... 42
15.2.1.9 ALARM_MINUTES_REG : RTC ALARM MINUTE Register ............ 43
15.2.1.10
ALARM_HOURS_REG : RTC ALARM HOUR Register ............ 43
15.2.1.11
ALARM_DAYS_REG : RTC ALARM DAY Register ................. 43
15.2.1.12
ALARM_MONTHS_REG : RTC ALARM MONTH Register ........ 44
15.2.1.13
ALARM_YEARS_REG : RTC ALARM YEAR Register .............. 44
15.2.1.14
RTC_CTRL_REG : RTC Control Register ............................ 44
15.2.1.15
RTC_STATUS_REG : RTC Status Register ......................... 45
15.2.1.16
RTC_INT_REG : RTC Interrupt Register ............................ 46
15.2.1.17
RTC_COMP_LSB_REG : RTC Comensation LSB Register ..... 46
15.2.1.18
RTC_COMP_MSB_REG : RTC Compensation MSB Register .. 46
15.2.2
MISC REGISTERS .................................................................... 47
15.2.2.1 CLK32KOUT_REG : RTC Compensation MSB Register .............. 47
15.2.2.2 VB_MON_REG : Battery Voltage Monitor Register ................... 47
15.2.2.3 THERMAL_REG : Thermal Control Register ............................ 48
15.2.3
POWER CHANNEL CONTROL/MONITOR REGISTERS...................... 49
15.2.3.1 DCDC_EN_REG : DC-DC Converter Enable Register ................ 49
15.2.3.2 LDO_EN_REG : LDO Enable Register..................................... 49
15.2.3.3 SLEEP_SET_OFF_REG1 : Sleep set Off Register #1................. 50
15.2.3.4 SLEEP_SET_OFF_REG2 : Sleep set Off Register #2................. 50
15.2.3.5 DCDC_UV_STS_REG : DC-DC Under Voltage Status Register ... 51
15.2.3.6 DCDC_UV_ACT_REG : DC-DC Under Voltage Action Register ... 51
15.2.3.7 LDO_UV_STS_REG : LDO Under Voltage Status Register ......... 52
15.2.3.8 LDO_UV_ACT_REG : LDO Under Voltage Action Register ......... 53
15.2.3.9 DCDC_PG_REG : DC-DC Converter Power Good Status Register
54
15.2.3.10
LDO_PG_REG : LDO Power Good Status Register .............. 54
15.2.3.11
VOUT_MON_TDB_REG : VOUT Debounce Monitor Register . 55
15.2.4
POWER CHANNEL CONFIGURATION REGISTERS .......................... 56
15.2.4.1 BUCK1_CONFIG_REG : BUCK1 Configuration Register ............ 56
15.2.4.2 BUCK1_ON_VSEL : BUCK1 Active Mode Register .................... 56
15.2.4.3 BUCK1_SLP_VSEL : BUCK1 Sleep Mode Register .................... 57
15.2.4.4 BUCK1_DVS_VSEL : BUCK1 DVS Mode Register ..................... 57
15.2.4.5 BUCK2_CONFIG_REG : BUCK2 Configuration Register ............ 58
15.2.4.6 BUCK2_ON_VSEL : BUCK2 Active Mode Register .................... 59
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RK808
Power Management System
16
15.2.4.7 BUCK2_SLP_VSEL : BUCK2 Sleep Mode Register .................... 59
15.2.4.8 BUCK2_DVS_VSEL : BUCK2 DVS Mode Register ..................... 60
15.2.4.9 BUCK3_CONFIG_REG : BUCK3 Configuration Register ............ 60
15.2.4.10
BUCK4_CONFIG_REG : BUCK4 Configuration Register ....... 61
15.2.4.11
BUCK4_ON_VSEL : BUCK4 Active Mode Register ............... 61
15.2.4.12
BUCK4_SLP_VSEL : BUCK4 Sleep Mode Register............... 62
15.2.4.13
LDO1_ON_VSEL_REG : LDO1 Active Mode Voltage Select .. 62
15.2.4.14
LDO1_SLP_VSEL_REG : LDO1 Sleep Mode Voltage Select .. 63
15.2.4.15
LDO2_ON_VSEL_REG : LDO2 Active Mode Voltage Select .. 63
15.2.4.16
LDO2_SLP_VSEL_REG : LDO2 Sleep Mode Voltage Select .. 64
15.2.4.17
LDO3_ON_VSEL_REG : LDO3 Active Mode Voltage Sel ....... 64
15.2.4.18
LDO3_SLP_VSEL_REG : LDO3 Sleep Mode Voltage Select .. 65
15.2.4.19
LDO4_ON_VSEL_REG : LDO4 Active Mode Voltage Select .. 65
15.2.4.20
LDO4_SLP_VSEL_REG : LDO4 Sleep Mode Voltage Select .. 66
15.2.4.21
LDO5_ON_VSEL_REG : LDO5 Active Mode Voltage Select .. 66
15.2.4.22
LDO5_SLP_VSEL_REG : LDO5 Sleep Mode Voltage Select .. 67
15.2.4.23
LDO6_ON_VSEL_REG : LDO6 Active Mode Voltage Select .. 67
15.2.4.24
LDO6_SLP_VSEL_REG : LDO6 Sleep Mode Voltage Select .. 67
15.2.4.25
LDO7_ON_VSEL_REG : LDO7 Active Mode Voltage Select .. 68
15.2.4.26
LDO7_SLP_VSEL_REG : LDO7 Sleep Mode Voltage Select .. 68
15.2.4.27
LDO8_ON_VSEL_REG : LDO8 Active Mode Voltage Select .. 69
15.2.4.28
LDO8_SLP_VSEL_REG : LDO8 Sleep Mode Voltage Select .. 69
15.2.4.29
DEVCTRL_REG : Device Control Register .......................... 70
15.2.5
INTERRUPT REGISTERS............................................................ 71
15.2.5.1 INT_STS_REG1 : Interrupt Status Register #1 ....................... 71
15.2.5.2 INT_MSK_REG1 : Interrupt Mask Register #1 ........................ 71
15.2.5.3 INT_STS_REG2 : Interrupt Status Register #2 ....................... 72
15.2.5.4 INT_STS_MSK_REG2 : Interrupt Status Register #2 ............... 72
15.2.5.5 IO_POL_REG : IO Polarity Register ....................................... 73
15.2.5.6 DCDC_ILMAX_REG : DCDC max inductor current Register ....... 73
PACKAGE INFORMATION .......................................................................... 74
Version 1.0.1
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RK808
Power Management System
LIST OF FIGURES
Figure 3-1 Functional Block Diagram ...................................................... 9
Figure 4-1 One Battery Cell Application ............................................... 10
Figure 4-2 Two Battery Cells Application ............................................... 11
Figure 8-1 State Machine .................................................................. 23
Figure 8-2 Power On Enable Control ................................................... 24
Figure 8-3 SLEEP Enable Control ........................................................ 25
Figure 9-1 Power On/Off Timing, BOOT1=0, BOOT0=0 ........................... 26
Figure 9-2 Power On/Off Timing, BOOT1=0, BOOT0=1 ........................... 26
Figure 9-3 Power On/Off Timing, BOOT1=1, BOOT0=0 ........................... 27
Figure 10-1Power ON Timing with VDC Plug in (PLUP_IN_INT Trigger a Power
on Enable) ................................................................................... 29
Figure 10-2 Power Control Timing with VIN Falling ................................. 30
Figure 10-3 Vin and PLUG_IN Timing Characteristics .............................. 30
Figure 10-4 PWRON Turn-On/DEV_OFF Turn Off ..................................... 31
Figure 10-5 PWRON Long Press Turn Off ............................................... 31
Figure 10-6 SLEEP/ACTIVE Transition Timing ......................................... 32
Figure 11-1 Pin Assignment ................................................................. 33
Version 1.0.1
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RK808
Power Management System
LIST OF TABLES
Table 9-1 Power Start Up Sequence ...................................................... 25
Table 10-1 PWRON/DEV_OFF Timing Characteristics ............................... 32
Table 10-2 SLEEP Timing Characteristics ............................................... 33
Version 1.0.1
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RK808
Power Management System
1 OVERVIEW
The RK808 is a complete power supply solution for Portable systems. The highly
integrated device includes four buck DC-DC converters, eight high performance ldos, two
low Rds switches, I2C interface, programmable power sequencing and an RTC.
The RK808 improves performance, reduces component count and size, and therefore
provides lower cost solution compared to conventional portable designs. The ultra fast
2MHz current mode DC/DC architecture optimizes the transient performance and is
compatible with tiny low cost ceramic inductors and capacitors.
All DC/DC channels
include integrated MOSFETS. Internal soft-start and compensation circuits minimize
external components count. Most outputs can be programmed through the I2C interface
2 FEATURES
Input voltage range: 2.7V to 5.5V
2MHz Switching Frequency for bucks
Current mode architecture for best transient performance
Internal compensation and soft start
I2C Programmable output levels and power sequencing
High efficiency architecture
Integrated Vout Discharge Circuit for BUCK and LDO
Power:
•
CH1: Synchronous Buck regulator, 5A max
•
CH2: Synchronous Buck regulator, 5A max
•
CH3: Synchronous Buck regulator, 3A max
•
CH4: Synchronous Buck regulator, 2.5A max
•
CH6,CH7,CH9,CH11: Linear regulators, 150mA max
•
CH8: Low noise and high PSRR linear regulator,100mA max
•
CH10,CH12,CH13: Linear regulators, 300mA max
•
CH14: Low Rds switch, 0.2ohm@Vgs=3v
•
CH15: Low Rds switch, 0.2ohm@Vgs=3v
Auxiliary: Flexible Power Sequence control
Package: 7mmx7mm QFN68
Version 1.0.1
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RK808
Power Management System
3 BLOCK DIAGRAM
VCC6
Vcc_tp
VCCA
LDO1
150mA
VLDOA
CH6
VCC1
VCC1
LDO2
Vcca_33
CH1
150mA
SW1
BUCK1
Step-Down
5A
0.7125~1.5V
CH7
VCC7
Vdd_11
LDO3
(low noise)
DAC
Vdd_arm
SW1
GND1
GND1
VFB1
100mA
LDO3
VCC2
VCC2
CH8
CH2
SW2
VCC9
Vcc_25
BUCK1
Step-Down
5A
0.7125~1.5V
LDO4
150mA
CH9
DAC
Vdd_logic
SW2
GND2
GND2
VFB2
LDO5
Vcc28_cif
300mA
VCC3
CH3
CH10
VCC10
Vcc_12
BUCK3
Step-Down
3A
1.0~1.8V
LDO6
150mA
SW3
Vcc_ddr
GND3
VFB3
VCC4
CH11
2MHz
Clock
VCC7
Vcc18_cif
LDO7
300mA
CH12
VCC11
Vcc33_wifi
CH4
BUCK4
Step-Down
2.5A
1.8~3.3V
DAC
Vcc_io
SW4
GND4
VFB4
LDO8
300mA
CH13
VCC8
Vcc_sd
Switch 1
300mA
CH14
VCC12
Vcc_lcd
I2C
Switch 2
300mA
CH15
Power
Sequence
VCCRTC
SDA
SCK
INT
SLEEP
PWRON
Ext_EN
NRESPWRON
BOOT0
BOOT1
DVS1
DVS2
DVSOK
VDDIO
OSC32KIN
32K OSC
RTC
Reference
OSC32KOUT
CLK32OUT1
VREF
REFGND
CLK32OUT2
Figure 3-1 Functional Block Diagram
Version 1.0.1
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RK808
Power Management System
4 TYPICAL APPLICATION DIAGRAMS
Vsys
VCC1
VCC1
Vsys
4.7uF
VCC6
2.2uF Vcc_tp
2.2uFVcca_33
VLDO1
SW1
SW1
GND1
GND1
VFB1
VLDO2
VCC_IO
4.7uF
VCC7
2.2uF Vdd_11
Vcc18_cif
4.7uF
VLDO3
VLDO7
SW2
SW2
GND2
GND2
VFB1
VCC8
2.2uF Vcc_sd
VSWOUT1
VCC_IO
4.7uF
VCC9
2.2uF Vcc_25
Vcc28_cif
2.2uF
33uF
Vsys
4.7uF
VDD_LOGIC
2.2uH/5A
33uF
Vsys
4.7uF
VCC3
VLDO4
VDD_ARM
2.2uH/5A
VCC2
VCC2
VCC_IO
4.7uF
4.7uF
VCC_DDR
2.2uH/3A
SW3
VLDO5
VCC_IO
4.7uF
VCC10
33uF
VFB3
2.2uF Vcc_12
VCC_IO
4.7uF
VLDO6
GND3
VCC11
Vcc33_wifi
2.2uF
Vsys
4.7uF
VLDO8
VCC4
VCC_IO
4.7uF
VCC12
2.2uFVcc_lcd
4.7uF VCC_IO
4.7uF Vsys
2.2uF Vsys
0.1uF
BAT
USB/Adapter
Power
Path
25pF
25pF
VFB4
VCCA
VDDIO
VCCRTC
VLDOA
VREF
REFGND
AGND
DGND
EXT_EN
OSC32KIN
Vsys
33uF
GND4
VSWOUT2
4.7uF Vsys
VCC_IO
2.2uH/3A
SW4
DVS1
DVS2
SLEEP
DVS1
DVS2
SLEEP
VCC_IO
32.768K
100K
100K
100K
100K
OSC32KOUT
10K
RESET
VCCRTC
VPPOTP
200K
VDC
33K
22nF
DVSOK
INT
NRESPWON
AP
(VCC_IO)
CLK32KOUT2
VCCRTC
VCC_IO
10K
PWRON
4.7K
PWRON
4.7K
SCL
SCL
VCCRTC
SDA
SDA
VCCRTC
10K
10K
VCCRTC
BOOT0
BOOT1
BOOT0
BOOT1
100K
CLK32KOUT1
GPS
Figure 4-1 RK808 One Battery Cell Application
Version 1.0.1
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RK808
Power Management System
Vsys
VCC1
VCC1
Vsys
4.7uF
VCC6
2.2uF Vcc_tp
VLDO1
2.2uFVcca_33
SW1
SW1
GND1
GND2
VFB1
VLDO2
VCC_IO
4.7uF
VCC7
2.2uF Vdd_11
VLDO3
Vcc18_cif
4.7uF
VLDO7
VSWOUT1
VCC_IO
4.7uF
VCC9
VLDO4
VCC3
VLDO5
SW3
VCC_IO
4.7uF
VCC10
VFB3
4.7uF
4.7uF VCC_IO
Vhvldo
4.7uF
2.2uF Vsys
0.1uF
VSWOUT2
GND4
VCCA
VFB4
33uF
VDDIO
VCCRTC
VLDOA
DVS1
DVS2
SLEEP
DVS1
DVS2
SLEEP
VCC_IO
25pF
25pF
100K
Ext_en
100K
VPPOTP
VDC
100K
100K
DVSOK
INT
NRESPWON
RESET
VCCRTC
AP
(VCC_IO)
CLK32KOUT2
VCCRTC
33K
VAP_pwr1
OSC32KIN
32.768K
OSC32KOUT
10K
VCC_IO
2.2uH/3A
SW4
VREF
REFGND
AGND
DGND
Vsys
33uF
4.7uF
VCC4
VCC12
4.7uFVhvldo
400K
VCC_DDR
Vsys
VLDO8
2.2uFVcc_lcd
BUCK
33uF
GND3
VCC_IO
4.7uF
9V/12V
Adapter
VDD_LOGIC
VLDO6
VCC11
Vcc33_wifi
2.2uF
Power
Path
2.2uH/5A
2.2uH/3A
2.2uF Vcc_12
2*BAT
4.7uF
VCC_IO
4.7uF
LDO
Vsys
Vsys
2.2uF Vcc_25
Vcc28_cif
2.2uF
33uF
SW2
SW2
GND2
GND2
VFB2
VCC8
2.2uF Vcc_sd
VDD_ARM
2.2uH/5A
VCC2
VCC2
VCC_IO
4.7uF
4.7uF
VCC_IO
VAP_pwr2
22nF
10K
PWRON
4.7K
PWRON
4.7K
SCL
SCL
VCCRTC
SDA
SDA
VCCRTC
10K
10K
VCCRTC
BOOT0
BOOT1
BOOT0
CLK32KOUT1
BOOT1
100K
GPS
Vsys must less than (Vhvldo+0.5V)
Figure 4-2 RK808 Two Battery Cells Application
Version 1.0.1
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RK808
Power Management System
5 ORDERING INFORMATION
Orderable
Device
RoHS
status
Package
Package Qty
Device special
feature
RK808-B
RoHS pass
QFN68(7X7)
2600ea/inner box* 6 For
RK3288
inner boxes/outer box B-application
RK808-C
RoHS pass
QFN68(7X7)
2600ea/inner box* 6 For
RK3288
inner boxes/outer box C-application
6 ABSOLUTE MAXIMUM RATINGS
Parameter
Min
Voltage range on pins VCCx, VDDIO, VCCRTC,
VFBx, VLDOx, VSWOUTx, VREF
Voltage
range
on
pin
CLK32KOUT1,
CLK32KOUT2, VDC, SLEEP
Voltage range on pins OSC32KIN, OSC32KOUT,
BOOT0, BOOT1, EXT_EN, PWRON
Voltage range on pins NRESPWRON, INT, SDA,
SCL, DVS1, DVS2, DVSOK
Storage temperature range, TS
Operating temperature range, TJ
Maximum Soldering Temperature, TSOLDER
Max
Uni
ts
-0.3
7
V
-0.3
7
V
-0.3
VCCRTCMAX+0.3
-0.3
VDDIO+0.3
V
-40
-40
150
125
300
℃
℃
℃
Note 1. Exposure to the conditions exceeded absolute maximum ratings may cause the permanent
damages and affect the reliability and safety of both device and systems using the device. The
functional operations cannot be guaranteed beyond specified values in the recommended
conditions.
7 RECOMMENDED OPERATING CONDITIONS
Parameter
Voltage range on pins VCCx, VDDIO
Voltage range on pin VCCRTC
Voltage range on other pins
Power Dissipation
Version 1.0.1
Min
3
2.5
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TYP
Max
5.5
5.5
5.5
2.5
Units
V
V
V
W
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RK808
Power Management System
8 ELECTRICAL CHARACTERISTICS
TJ=25C; VBAT=VCCx=3.8V, VDDIO=3V unless otherwise specified.
Parameter
Symbol
Min.
VINPUT
2.7
VBLO
3.25
Typ.
Max.
Unit
5.5
V
3.35
V
General
Input supply voltage range ( VBAT )
Battery low alarm voltage
(2.8V~3.5V programmable, step=100mV)
Battery under voltage threshold (vin falling)
VBUVL
Battery under voltage threshold (vin rising)
VBUVH
Battery OK voltage threshold
VBOK
3.3
2.5
2.6
2.7
V
2.8
3.0
V
V
（3.0V/3.4V/3.5V/3.6V OTP programmable）
Power on Reset Threshold (Rising)
VPORH
Power on Reset Threshold (Falling)
VPORL
1.2
VTH(OVLO)
5.7
Over Voltage Lock Out Threshold (Vin Rising)
Over Voltage Lock Out Hysteresis
2.2
V
V
6.0
6.3
V
VHYS (OVLO)
0.2
V
VDC pin threshold(rising edge)
VDCH
0.6
V
VDC pin threshold(falling edge)
VDCL
0.54
V
IQ(STNBY)
60
uA
Stand-by current, VDD=3.6V, device OFF state
32KHz clock running
Hot-die temperature rising threshold
(85℃~115℃ programmable, step=10℃)
Thermal shut down
THD
85
115
℃
TTSD
140
170
℃
fSW
1.8
2.2
MHz
0.3xVDDIO
V
(140℃~170℃ programmable, step=30℃)
Oscillator circuit
Switching Frequency CH1,2,3,4( Tj=25℃ )
2
Logic inputs
Input LOW-Level Voltage (VDDIO)
VIL
Input HIGH-Level Voltage (VDDIO)
VIH
0.7xVDDIO
V
Logic outputs
LOW-Level Output Voltage,
3.0 mA sink
VOL
HIGH-Level Output Voltage, 3.0 mA source
VOH
0.4
V
current
VDDIO-0.4
V
current
NRESPWON pin LOW-Level Output Voltage,
VOL(NRES)
0.4
V
VOL(CLKO1)
0.4
V
3.0mA sink current
CLK32KOUT1 pin LOW-Level Output Voltage,
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13
RK808
Power Management System
Parameter
Symbol
Min.
Typ.
Max.
Unit
3.0mA sink current
CLK32KOUT2 pin LOW-Level Output Voltage,
VOL(CLKO2)
0.4
3.0mA sink current
CLK32KOUT2
pin
HIGH-Level
Output
VOH(CLKO2)
VDDIO-0.4
V
VINPUT1
2.7
5.5
V
VFB1
0.7125
1.500
V
Voltage, 3.0mA source current
CH1 Buck1 Regulator (VDD_ARM)
Input supply voltage range
Voltage Adjustable Range, 6bit
DC output voltage programmable step(DVS)
12.5
mV
Output voltage transition rate
BUCK1_RATE=00
2
BUCK1_RATE=01
3.6
BUCK1_RATE=10
5
BUCK1_RATE=11
6.5
DVS OK threshold (Vout rising)
VDVSOKR1
mV/us
93
%
VDVSOKF1
107
%
Power Good threshold (Vout rising)
VPG1
93
%
Output under voltage lockout(Vout falling)
VUV1
85
%
Output over voltage lockout (Vout rising)
VOV1
117
%
DVS OK threshold (Vout falling)
Preset Voltage, Default( Tj=25℃ )
VFB1(Default)
1.078
1.100
1.122
V
Preset Voltage, Default(-10℃≦Tj≦+85℃)
VFB1(Default)
1.067
1.100
1.133
V
Load Regulation, IOUT1 = 100mA to 5A
Line Regulation, VCC1 = 3 to 5V, IOUT1 = 1A
1
%/A
0.1
%/V
Rated output current(If ICL1=6A)
IMAX1
5
A
Switch Current Limit
ICL1
6
A
IQ1
70
uA
ICLMIN1
100
mA
tSS1
400
us
RDIS1
250
ohm
(4.5A~6A programmable, step=0.5A)
Operating
Quiescent
Current,
No
load,
VDD=3.8V
Minimun Switch Current Limit
(50mA~400mA programmable, step=50mA)
Soft-start Time
COUT Discharge Switch ON Resistance
Conversion Effeciency (Vin=3.8V,Vout=1.1V)
68
Iout=5A
73
Iout=4A
78
Iout=3A
84
Iout=2A
89
Iout=1 A
Version 1.0.1
%
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14
RK808
Power Management System
Parameter
Symbol
Min.
Typ.
Iout=500mA
90
Iout=100 mA
81
Iout=10 mA
79
Max.
Unit
CH2 Buck2 Regulator (VDD_LOG)
Input supply voltage range
Voltage Adjustable Range, 6bit
VINPUT2
2.7
5.5
VINPUT2
VFB2
0.7125
1.500
VFB2
DC output voltage programmable step(DVS)
12.5
Output voltage transition rate
BUCK2_RATE=00
2
BUCK2_RATE=01
3.6
BUCK2_RATE=10
5
BUCK2_RATE=11
6.5
DVS OK threshold (Vout rising)
VDVSOKR2
93
%
VDVSOKF2
107
%
Power Good threshold (Vout rising)
VPG2
93
%
Output under voltage lockout (Vout falling)
VUV2
85
%
Output over voltage lockout (Vout rising)
VOV2
117
%
DVS OK threshold (Vout falling)
Preset Voltage, Default( Tj=25℃ )
VFB2(Default)
1.078
1.100
V
Preset Voltage, Default(-10℃≦Tj≦+85℃)
VFB2(Default)
1.067
1.100
V
1
%/A
0.1
%/V
Load Regulation, IOUT2 = 100 mA to 5A
Line Regulation, VCC2 = 3 to 5V, IOUT2 = 1A
Rated output current(If ICL2=6A)
IMAX2
5
A
Switch Current Limit
ICL2
6
A
IQ2
70
uA
ICLMIN2
100
mA
tSS2
400
us
RDIS2
250
ohm
(4.5A~6A programmable, step=0.5A)
Operating
Quiescent
Current,
No
load,
VDD=3.8V
Minimun Switch Current Limit
(50mA~400mA programmable, step=50mA)
Soft-start Time
COUT Discharge Switch ON Resistance
Conversion Effeciency (Vin=3.8V,Vout=1.1V)
Iout=5A
68
Iout=4A
73
Iout=3A
78
Iout=2A
84
Iout=1 A
89
Version 1.0.1
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%
15
RK808
Power Management System
Parameter
Symbol
Min.
Typ.
Iout=500mA
90
Iout=100 mA
81
Iout=10 mA
79
Max.
Unit
CH3 Buck3 Regulator (VDD_DDR)
Input supply voltage range
VINPUT3
2.7
V
Feedback Voltage, Default( Tj=25℃ )
VFB3(Default)
0.98
1.00
V
Feedback Voltage, Default(-10℃≦Tj≦+85℃)
VFB3(Default)
0.97
1.00
V
Power Good threshold (Vout rising)
VPG3
93
%
Output under voltage lockout (Vout falling)
VUV3
85
%
Output over voltage lockout (Vout rising)
VOV3
117
%
1
%/A
0.1
%/V
Load Regulation, IOUT3 = 100mA to 3A
Line Regulation, VCC3 = 3 to 5V, IOUT3 = 0.5A
Rated output current(If ICL3=3.5A)
IMAX3
3
A
Switch Current Limit
ICL3
3.5
A
IQ3
70
uA
ICLMIN3
100
mA
tSS3
400
us
RDIS3
250
ohm
(2A~3.5A programmable, step=0.5A)
Operating
Quiescent
Current,
No
load,
VDD=3.8V
Minimun Switch Current Limit
(50mA~400mA programmable, step=50mA)
Soft-start Time
COUT Discharge Switch ON Resistance
Conversion Effeciency (Vin=3.8V,Vout=1.4V)
Iout=3A
71
Iout=2A
79
Iout=1.5A
83
Iout=1 A
87
Iout=500mA
90
Iout=100 mA
83
Iout=10 mA
76
%
CH4 Buck4 Regulator (VDD_IO)
Input supply voltage range
Voltage Adjustable Range, 4bit
VINPUT4
2.7
5.5
V
VFB4
1.8
3.3
V
DC output voltage programmable step(gain
100
mV
select)
Feedback Voltage, Default( Tj=25℃ )
Version 1.0.1
VFB4(Default)
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2.94
3.00
3.06
V
16
RK808
Power Management System
Parameter
Symbol
Min.
Typ.
Max.
Unit
Feedback Voltage, Default(-10℃≦Tj≦+85℃)
VFB4(Default)
-2.91
3.00
3.09
V
Power Good threshold (Vout rising)
VPG4
93
%
Output under voltage lockout (Vout falling)
VUV4
85
%
Output over voltage lockout (Vout rising)
VOV4
117
%
1
%/A
0.1
%/V
Load Regulation, IOUT4 = 100mA to 2.5A
Line Regulation, VCC4 = 3 to 5V, IOUT4 = 0.5A
Rated output current(If ICL4=3.5A)
IMAX4
2.5
A
Switch Current Limit
ICL4
3.5
A
IQ4
70
uA
ICLMIN4
100
mA
tSS4
400
us
RDIS4
250
Ohm
(2A~3.5A programmable, step=0.5A)
Operating
Quiescent
Current,
No
load,
VDD=3.8V
Minimun Switch Current Limit
(50mA~400mA programmable, step=50mA)
Soft-start Time
COUT Discharge Switch ON Resistance
Conversion
Effeciency,
(DCRVB_LO_SEL
1: VBAT90% of setting voltage
0: Power not good, Vout90% of setting voltage
0: Power not good, Vout90% of setting voltage
0: Power not good, Vout90% of setting voltage
0: Power not good, Vout90% of setting voltage
0: Power not good, Vout90% of setting voltage
0: Power not good, Vout90% of setting voltage
0: Power not good, Vout90% of setting voltage
0: Power not good, Vout90% of setting voltage
0: Power not good, Vout90% of setting voltage
0: Power not good, Vout90% of setting voltage
0: Power not good, Vout90% of setting voltage
0: Power not good, Vout
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