WM8311GEB/V Wolfson Microelectronics, WM8311GEB/V Datasheet - Page 247

• Manufacturer Part Number: WM8311GEB/V
• Description: POWER MANAGEMENT SUBSYSTEM, 121BGA
• Manufacturer: Wolfson Microelectronics

Specifications of WM8311GEB/V

• Supply Voltage: 5.5V
• No. Of Step-down Dc - Dc Converters: 4
• No. Of Ldo Regulators: 7
• Digital Ic Case Style: BGA
• No. Of Pins: 121
• No. Of Regulated Outputs: 9
• Operating Temperature Range: -40°C To
• Rohs Compliant: Yes
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Pre-Production
REGISTER
R16490
(406Ah)
LDO1
SLEEP
Control
Register 406Ah LDO1 SLEEP Control
REGISTER
R16491
(406Bh)
LDO2
Control
w
ADDRESS
ADDRESS
15:13
15:14
12:11
BIT
BIT
4:0
9:8
10
8
LDO1_SLP_VS
LDO2_HWC_M
LDO1_SLP_SL
LDO2_HWC_S
LDO2_HWC_V
LDO1_SLP_M
LDO2_ERR_A
ODE[1:0]
LABEL
LABEL
OT[2:0]
CT[1:0]
RC[1:0]
EL[4:0]
ODE
SEL
DEFAULT
DEFAULT
0_0000
000
00
00
10
1
0
LDO1 SLEEP Slot select
000 = SLEEP voltage / operating mode transition in
Timeslot 5
001 = Disable in Timeslot 5
010 = Disable in Timeslot 4
011 = Disable in Timeslot 3
100 = Disable in Timeslot 2
101 = Disable in Timeslot 1
110 = SLEEP voltage / operating mode transition in
Timeslot 3
111 = SLEEP voltage / operating mode transition in
Timeslot 1
If LDO1 is assigned to a Hardware Enable Input, then
codes 001-101 select in which timeslot the regulator
enters its SLEEP condition.
LDO1 SLEEP Operating Mode
0 = Normal mode
1 = Low Power mode
LDO1 SLEEP Voltage select
0.9V to 1.6V in 50mV steps
1.7V to 3.3V in 100mV steps
00h = 0.90V
01h = 0.95V
…
0Eh = 1.60V
0Fh = 1.70V
…
1Eh = 3.20V
1Fh = 3.30V
LDO2 Error Action (Undervoltage)
00 = Ignore
01 = Shut down regulator
10 = Shut down system (Device Reset)
11 = Reserved
Note that an Interrupt is always raised.
LDO2 Hardware Control Source
00 = Disabled
01 = Hardware Control 1
10 = Hardware Control 2
11 = Hardware Control 1 or 2
LDO2 Hardware Control Voltage select
0 = Set by LDO2_ON_VSEL
1 = Set by LDO2_SLP_VSEL
LDO2 Hardware Control Operating Mode
00 = Low Power mode
01 = Turn converter off
10 = Low Power mode
11 = Set by LDO2_ON_MODE
DESCRIPTION
DESCRIPTION
PP, December 2009, Rev 3.0
REFER TO
REFER TO
WM8311
247