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ACT8870 Datasheet(PDF) 39 Page - Qorvo, Inc

Part # ACT8870
Description  Advanced PMU for Microcontrollers and Solid State Drive Applications
PDF  49 Pages
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Manufacturer  QORVO [Qorvo, Inc]
Direct Link  https://www.qorvo.com/
Logo QORVO - Qorvo, Inc

ACT8870 Datasheet(HTML) 39 Page - Qorvo, Inc

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ACT8870
Advanced PMU for Microcontrollers
and Solid State Drive Applications
Data Sheet Rev. 7.0, Feb. 18, 2020 | Subject to change without notice
39 of 49
www.qorvo.com
®
CMI 102: ACT8870QJ102-T
CMI 102 is optimized for Silicon Motion SM2258 and SM2259 solid state disk drive controllers. It incorporates boot
voltage options for Buck2 and Buck3 that allow it to be used with 1.5V or 1.35V DRAM VDDQ and with 1.2V or 1.8V
NAND flash I/O.
SM225x Configuration
The following table shows how to connect the ACT8870 outputs to the SM225x. The EXT_PG and nRESET_AUX2 input
settings define Buck2 and Buck3 to be 1.5V and 1.2V respectively.
SM2258 Voltage (V)
SM2259 Voltage (V)
SM225x Connections
EXT_PG Input
Setting
n/a
n/a
n/a, EXT_PG sets Buck2 boot voltage
nRESET_AUX2
Input Setting
n/a
n/a
n/a, nRESET_AUX2 sets Buck3 boot voltage
Buck1
3.3
3.3
VCCF for Flash Die Power
Buck2
1.5/1.35
1.5/1.35
DRAM – DDR3
Buck3
1.2/1.8
1.2/1.8
VCCFQ for Flash I/O
Buck4
1.15
1.15
VCCK/A1V1
LDO1
3.3
3.3
A3V3 Analog Power
LDO2
1.8
1.8
VCCIO Power
LDO3
1.8
1.8
VCCIO Power
Sequencing
Rail
Active
Mode
Voltage (V)
Sleep
Mode
Voltage (V)
DVS
Voltage (V)
DVS
slew rate
(mV/us)
Current
Limit
Setting(A)
Sequencing
Input
Trigger
StartUp
Delay
(us)
Soft-
Start (us)
LDO1
3.3
3.3
N/A
N/A
0.5
VIN_UVLO
28
660
LDO2
1.8
1.8
N/A
N/A
0.2
VIN_UVLO
28
165
LDO3
1.8
1.8
N/A
N/A
0.2
VIN_UVLO
28
165
Buck4
1.15
0.95
N/A
N/A
3.5
LDO1
700
500
Buck1
3.3
OFF
N/A
N/A
5.3
Buck4
500
500
Buck3
1.2/1.8
OFF
N/A
N/A
3
Buck1
500
500
Buck2
1.5/1.35
OFF
N/A
N/A
3
Buck3
500
500



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