900844 Datasheet, PDF (78/118 Pages) Freescale Semiconductor, Inc – Integrated Power Management IC for Ultra-mobile and Embedded Applications

FUNCTIONAL DEVICE OPERATION
POWER SUPPLIES
PVIN 1P5
(Shared with VCCPAOAC, VCCPDDR,
VAON, and VCCP)
VOMM
VOUTMM
Controller
_
VR EF
+
Z
CTLVMM
AOACCTLVMM
SPI
Interface
COMM
VOMM
I OMM
Output Monitor
VMMCFAULT
GND1 P5
(Shared with VCCPAOAC , VCCPDDR,
VAON , and VCCP)
Discharge
Figure 43. VMM Detailed Internal Block Diagram
Main Features
• Uses V15 as the main power supply
• 5.0 mA maximum continuous output current
• Optimized for a 1.0 µF external filter capacitor with a maximum of 10 mΩ ESR
• Uses an internal pass FET
• The output for each LDO is monitored for over-current conditions and under-voltage events
Table 40. VMM control Register Structure and Bits Description
Name
Bits
Description
CTLVMM
AOACCTLVMM
VMMCNT (ADDR 0x47 - R/W - Default Value: 0x24)
2:0 ^{VMM State Control}
x0 = Reserved
x1 = Reserved
x2 = Reserved
x3 = Reserved
x4 = OFF
x5 = Low Power
x6 = Active
x7 = Active
5:3 VMM State Control during AOAC Exit (when the 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
x4 = OFF
x5 = Low Power
x6 = Active
x7 = Active
Reserved
7:6 ^Reserved
VCCP
VCCP is a low drop-out (LDO) fully integrated regulator with a P-CH Pass FET. It is high performance, low noise, and high
PSRR, with a low quiescent current and fast transient response. VCCP is actively discharged during shutdown.
VCCP shares an input voltage pin (PVIN1P5) and a reference ground pin (GND1P5) with the VCCPAOAC, VCCPDDR,
VAON, and VMM regulators, yet each has independent control. PVIN1P5 is supplied from V15 voltage.
900844
78
Analog Integrated Circuit Device Data
Freescale Semiconductor