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RT5021 Fiches technique(PDF) 50 Page - Richtek Technology Corporation

No de pièce RT5021
Description  Channels DC/DC PMU with Li-ion Battery Charger
PDF  67 Pages
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Fabricant  RICHTEK [Richtek Technology Corporation]
Site Internet  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT5021 Fiches technique(HTML) 50 Page - Richtek Technology Corporation

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RT5021
50
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
FLST
FB3 [2:0]
FLST2
FB4 [2:0]
Default
1
1
0
0
1
1
0
0
A5
0x05
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Used to control the CHG pin status when the register bit A9. CHGSTEN = 0.
1 : CHG = High impedance.
FLST
0 : CHG = Low.
FB3 regulation voltage can be selected by I
2C 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
FB3 [2:0]
111
0.86V
1.935V
1.075V
3.5475V
Used to control the CHG2 pin status when the register bit A8. CHG2STEN = 0.
1 : CHG2 = High impedance.
FLST2
0 : CHG2 = Low.
FB4 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
FB4 [2:0]
111
0.86V
1.935V
1.075V
3.5475V



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