WM8311GEB/V Wolfson Microelectronics, WM8311GEB/V Datasheet - Page 240

• 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

WM8311
REGISTER
Register 405Dh DC2 ON Config
REGISTER
R16478
(405Eh)
DC2 SLEEP
Control
Register 405Eh DC2 SLEEP Control
w
ADDRESS
ADDRESS
15:13
BIT
BIT
1:0
9:8
6:0
DC2_SLP_SLO
DC2_SLP_VSE
DC2_ON_VSE
DC2_SLP_MO
LABEL
LABEL
DE[1:0]
L[1:0]
T[2:0]
L[6:0]
DEFAULT
DEFAULT
000_0000 DC-DC2 SLEEP Voltage select
000
00
11
Note - Maximum output voltage selection in 4MHz
switching mode is 48h (1.4V).
DC-DC2 ON Voltage select
DC2_ON_VSEL[6:0] selects the DC-DC2 output
voltage from 0.6V to 1.8V in 12.5mV steps.
See DC2_ON_VSEL[6:2] for definition.
DC-DC2 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 DC-DC2 is assigned to a Hardware Enable Input,
then codes 001-101 select in which timeslot the
converter enters its SLEEP condition.
DC-DC2 SLEEP Operating Mode
00 = Forced Continuous Conduction Mode
01 = Continuous / Discontinuous Conduction with
Pulse-Skipping
10 = LDO Mode
11 = Hysteretic Mode
0.6V to 1.8V in 12.5mV steps
00h to 08h = 0.6V
09h = 0.6125V
…
48h = 1.4V (see note)
…
67h = 1.7875V
68h to 7Fh = 1.8V
Note - Maximum output voltage selection in 4MHz
switching mode is 48h (1.4V).
DESCRIPTION
DESCRIPTION
PP, December 2009, Rev 3.0
REFER TO
REFER TO
Pre-Production
240