SC900841JVK Freescale Semiconductor, SC900841JVK Datasheet - Page 78

• Manufacturer Part Number: SC900841JVK
• Description: IC POWER MGT 338-MAPBGA
• Manufacturer: Freescale Semiconductor

Specifications of SC900841JVK

• Applications: PC's, PDA's
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 338-TBGA
• Input Voltage: 2.8 V to 4.4 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Voltage - Supply: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Main Features
• Uses the V
• Used as the advanced communications module digital
• Uses Integrated MOSFETs
• 4.0 MHz switching frequency
• High efficiency operating modes depending on load
• Output can be discharged through the low side switch
VYMX3G Status/Control Registers and Bits Description
default state for each of these registers.
78
900841
FUNCTIONAL DEVICE OPERATION
POWER SUPPLIES
Table 36. VYMX3G Control Register Structure and Bits Description
AOACCTLVYMX3G 5:3
core supply
conditions
Reference the register map for read/write conditions and
CTLVYMX3G
SELVYMX3G
Name
PWR
rail as its power supply
Bits
2:0
7:6
VYMX3G State Control
x0 = Reserved
x1 = Reserved
x2 = Reserved
x3 = Reserved
VYMX3G State Control during AOAC Exit (when Exit pin is EXITSTBY pin is asserted). These bits will be
initialized by the system SPI controller after power up.
X0 = Do not copy
x1 = Do not copy
x2 = Do not copy
x3 = Do not copy
VYMX3G Output Voltage Selection.
X0 = 1.25 V (WiMAX Operation)
x1 = 1.0 V (Default 3G Operation Mini-SPI controls output voltage)
x2, x3 = Reserved
VYMX3GCNT (ADDR 0x3C - R/W - Default Value: 0x24)
Figure 34. VYMX3G Efficiency Curves
• Output current sensing with over-current protection
• Uses internal compensation
• Gate drive circuits are supplied directly from VPWR
Efficiency Curves
mode based on the recommended external component
values and typical output voltage of 1.2 V. 3.0 V ≤ VPWR ≤
4.4 V.
The following efficiency curves are calculated under PWM
Description
x4 = OFF
x5 = PFM
x6 = Automatic Pulse Skipping
x7 = PWM
x4 = OFF
x5 = PFM
x6 = Automatic Pulse Skipping
x7 = PWM
Analog Integrated Circuit Device Data
Freescale Semiconductor