Freescale Semiconductor
Advance Information
Document Number: SC900844
Rev. 2.0, 5/2011
Integrated Power Management IC
for Ultra-mobile and Embedded
Applications
The 900844 is a high efficiency Power Management Integrated Circuit
(PMIC) capable of providing operating voltages for Ultra-mobile
platforms for Netbook, Tablets, and embedded devices through its 20
voltage rails. It has 5 switching power supplies running at frequencies
from 1.0 to 4.0 MHz,14 highly efficient LDOs, and one 3.3 V power
switch. It incorporates a 10-bit ADC, Real Time Clock, 8 GPIOs and 8
GPOs.
The 900844 is fully configurable and controllable through its SPI
interface. It provides an optimized power management solution for ultra-
mobile platforms used on netbooks, tablets, and slates.
Optimum partitioning, high feature integration, and state-of-the-art
technology, allow Freescale to effectively serve this growing market
segment.
Features
• Main system power management integrated in a single chip
• Fully programmable DC/DC switching, low drop-out regulators, and
load switches
• SPI interface (up to 25 MHz operation)
• 10-bit ADC for internal and external sensing with touch screen
interface
• Real time clock (RTC)
• 8 Interrupt capable GPIOs and 8 GPOs
• I/O interrupt and reset controller
900844
POWER MANAGEMENT
98ASA10841D
11 mm x 11 mm
338-MAPBGA
ORDERING INFORMATION
Device
SC900844JVK
Temperature
Range (T
A
)
-40 °C to 85 °C
Package
338-MAPBGA
Applications
• Netbooks
• Tablet PC
• Slates
• Embedded Devices
Freescale PMIC
900844
CORE PMIC
VR
VR
VPWR
ADC Inputs
ADC / Touch Screen Inputs
GPIO / GPO
SPI Control
System Control Interface
3-4 Cell
Battery
Pack
Charger
PWR
SW
5 x DC/DC Converters
14 x LDOS
1 x 3.3 V Power Switch
Input Power Path
Core
Rail
CPU (central
processing unit)
Platform
controller hub
3VA
3.3 V
SMPS
I/O
Rails
1.8 V
SMPS
5.0 V
SMPS
Memory
Rails
5VA
19 V ADP
Display
EC
CAM
Memory
Backlight
SATA
USB
Ultra-mobile
Platform
Figure 1. 900844 Simplified Application Diagram
* This document contains certain information on a new product. Specifications and information herein are subject
to change without notice. © Freescale Semiconductor, Inc., 2010-2011. All rights reserved.
FREESCALE [ FREESCALE SEMICONDUCTOR, INC ]
