900844 Datasheet, PDF (75/118 Pages) Freescale Semiconductor, Inc – Integrated Power Management IC for Ultra-mobile and Embedded Applications

FUNCTIONAL DEVICE OPERATION
POWER SUPPLIES
V15
PVIN1P5
VOC C PAOAC
CIN1P 5
VOUTCCPAOAC
COC C PAOAC
GND1P 5
Controller
_
V REF
+
Z
VOCCPAOAC
I OCCPAOAC
Discharge
Output Monitor
CTLVCCPAOAC
AOACCTLVCCPAOAC
SPI
Interface
VCCPAOACFAULT
Figure 40. VCCPAOAC Detailed Internal Block Diagram
Main Features
• Uses V15 as the main power supply.
• 155 mA maximum continuous output current
• Optimized for a 2.2 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 37. VCCPAOACCNT Register Structure and Bits Description
Name
Bits
Description
CTLVCCPAOAC
2:0
AOACCTLVCCPAOAC 5:3
Reserved
7:6
VCCPAOACCNT (ADDR 0x3D - R/W - Default Value: 0x07)
VCCPAOAC State Control
x0 = Reserved
x1 = Reserved
x2 = Reserved
x3 = Reserved
x4 = OFF
x5 = Low Power
x6 = Active
x7 = Active
VCCPAOAC 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
VCCPDDR
VCCPDDR 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. VCCPDDR is actively discharged during shutdown.
VCCPDDR shares an input voltage pin (PVIN1P5) and a reference ground pin (GND1P5) with the VCCPAOAC, VAON, VMM,
and VCCP regulators, yet each has independent control. PVIN1P5 is supplied from the V15 voltage.
Analog Integrated Circuit Device Data
Freescale Semiconductor
900844
75