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RT5021 датащи(PDF) 49 Page - Richtek Technology Corporation

номер детали RT5021
подробное описание детали  Channels DC/DC PMU with Li-ion Battery Charger
PDF  67 Pages
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производитель  RICHTEK [Richtek Technology Corporation]
домашняя страница  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT5021 датащи(HTML) 49 Page - Richtek Technology Corporation

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RT5021
49
DS5021-01 April 2013
www.richtek.com
Copyright
2013 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
©
Address
Name
Register Address
Bit7
(MSB)
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
(LSB)
Meaning
PSM1
PSM2
PSM3
PSM4
VOUT8 [3:0]
Default
1
1
1
1
1
1
0
0
A3
0x03
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Define the CH1/2/3/4 CCM or PWM/PSM switching operation.
0 : Force PWM
PSM1 to PSM4
1 : Automatic PWM/PSM switch operation
CH8 regulation voltage can be selected by I
2C interface. The default voltage is
2.8V.
Code
Voltage
Code
Voltage
Code
Voltage
Code
Voltage
0000
Switch
0001
1.1V
0010
1.2V
0011
1.3V
0100
1.4V
0101
1.5V
0110
1.6V
0111
1.7V
1000
1.8V
1001
2V
1010
2.2V
1011
2.5V
VOUT8 [3:0]
1100
2.8V
1101
3.1V
1110
3.2V
1111
3.3V
Address
Name
Register Address
Bit7
(MSB)
Bit6
Bit5
Bit4
Bit3
Bit2
Bit
Bit0
(LSB)
Meaning
VOUT1 [3:0]
EN1
FB2 [2:0]
Default
1
0
1
0
0
1
0
0
A4
0x04
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
CH1 regulation voltage can be selected by I
2
C interface. The default voltage is 5V.
Code
Voltage
Code
Voltage
Code
Voltage
Code
Voltage
0000
3.6V
0001
3.7V
0010
3.8V
0011
3.9V
0100
4V
0101
4.5V
0110
4.6V
0111
4.7V
1000
4.8V
1001
4.9V
1010
5V
1011
5.1V
VOUT1 [3:0]
1100
5.2V
1101
5.3V
1110
5.4V
1111
5.5V
Enable/Disable CH1 when sequence ID is SEO#0.
In SEO#0, CH1 is not the power on/off sequence.
In other sequence. CH1 is in sequence control and on/off by the pin EN, not by the
register bit EN1.
0 : Disable
EN1
1 : Enable
FB2 regulation voltage can be selected by I
2
C interface. The default voltage is
0.8V.
Code
VREF
If Target = 1.8V
If Target = 1V
If Target = 3.3V
000
0.72V
1.62V
0.9V
2.97V
001
0.74V
1.665V
0.925V
3.0525V
010
0.76V
1.71V
0.95V
3.135V
011
0.78V
1.755V
0.975V
3.2175V
100
0.8V
1.8V
1V
3.3V
101
0.82V
1.845V
1.025V
3.3825V
110
0.84V
1.89V
1.05V
3.465V
FB2 [2:0]
111
0.86V
1.935V
1.075V
3.5475V



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