STW4810CRAE/LF ST-Ericsson Inc, STW4810CRAE/LF Datasheet - Page 38

• Manufacturer Part Number: STW4810CRAE/LF
• Description: IC PWR MNGMNT MULTIMEDIA 84VFBGA
• Manufacturer: ST-Ericsson Inc

Specifications of STW4810CRAE/LF

• Applications: Processor
• Current - Supply: 170µA
• Voltage - Supply: 2.7 V ~ 4.8 V
• Operating Temperature: -30°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 84-VFBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

STw4810
4.3.6
Note:
4.3.7
4.3.8
Note:
VAUX
This LDO is dedicated either to the multimedia processor input/output signals or to the
auxiliary devices. Power supply values are 1.5 V,1.8 V, 2.5 V, 2.8 V with 150 mA full load and
0.5 mA in sleep mode. In case of 1.5 V on the output, this LDO can be supplied by using
VIO_VMEM DC/DC converter (1.8 V). One pad feed-back is used.
Main features:
●
●
Definition of sleep mode is given in
●
Power supply monitoring
This block monitors the VCORE and VIO_VMEM output voltage. If VCORE or VIO_VMEM
drop below the threshold, the multimedia processor is reset.
This feature can be desactivated by setting EN_MONITORING bit of Power control register
(
Power supply domains
Table 29
Table 29.
More details on VMMC supply are given in
Table 29
VCORE
VIO_VMEM STEP-DOWN
VPLL
VANA
VAUX
VMMC
Supply
name
Programmable output voltage, 4 levels
(VAUX_SEL[1:0] bits of Power control register -
Three power domains:
–
–
–
Default setting defined by start-up configuration
) to “0”.
lists the register bits that control STw4810 supply domains for each supply.
‘Normal mode’ when multimedia processor is in run mode, 150 mA full load
‘Low current mode’ when multimedia processor is in sleep mode, 0.5 mA current
capability.
Fast switching from low current to normal mode.
‘Power down mode’ or ‘standby mode’ when regulator is switched off, no power
consumption (PDN_VAUX bit of SD MMC control register -
Power supply domains
STEP-DOWN
LDO
LDO
LDO
LDO
Description
15 values
VCORE_SEL[3:0]
1.8 V
4 values
VPLL_SEL[1:0]
2.5 V
4 values
VAUX_SEL[1:0]
3 values
SEL_VMMC[1:0]
Normal
4.2.3: Sleep mode
Section 4.5
VCORE_SLEEP
VCORE_FORCE_SLEEP
VIO_MEM_SLEEP
VIO_VMEM_FORCE_SLEEP
VAUX_SLEEP
VAUX_FORCE_SLEEP
Supply domains
Table 27
section.
Sleep
)
Functional description
Table 18
EN_VCORE
EN_VPLL
EN_VANA
PDN_VAUX
PDN_VMMC
)
Power down
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