WM8311GEB/V Wolfson Microelectronics, WM8311GEB/V Datasheet - Page 75

• 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
w
R16473 (4059h)
DC1 SLEEP
Control
ADDRESS
15:13
BIT
6:2
1:0
9:8
6:0
DC1_ON_VS
EL [6:2]
DC1_ON_VS
EL [1:0]
DC1_SLP_S
LOT [2:0]
DC1_SLP_M
ODE [1:0]
DC1_SLP_V
SEL [6:0]
LABEL
DEFAULT
000_0000
00000
000
00
00
DC-DC1 ON Voltage select
DC1_ON_VSEL[6:0] selects the DC-
DC1 output voltage from 0.6V to 1.8V in
12.5mV steps.
DC1_ON_VSEL[6:2] also exist in
DBE/OTP memory, controlling the
voltage in 50mV steps.
DC1_ON_VSEL[6:0] is coded as
follows:
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).
DC-DC1 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-DC1 is assigned to a Hardware
Enable Input, then codes 001-101 select
in which timeslot the converter enters its
SLEEP condition.
DC-DC1 SLEEP Operating Mode
00 = Forced Continuous Conduction
Mode
01 = Continous / Discontinuous
Conduction with Pulse-Skipping
10 = LDO Mode
11 = Hysteretic Mode
DC-DC1 SLEEP Voltage select
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).
PP, December 2009, Rev 3.0
DESCRIPTION
WM8311
75