Freescale Semiconductor
Technical Data
Document order number:
MPC18730
Rev 1.0, 10/2005
Power Management IC with Five
Regulated Outputs
Programmed Through 3-Wire
Serial Interface
The MPC18730 Power Management IC (PMIC) regulates five
independent output voltages from either a single cell Li-Ion (2.7 V to
4.2 V input range) or from a single cell Ni-MH or dry cell (0.9 V to
2.2 V input range).
The PMIC includes 2 DC-DC converters and 3 low drop out (LDO)
linear regulators. The output voltage for each of the 5 output voltages
is set independently through a 3-wire serial interface. The serial
interface also configures the PMIC's versatile start-up control system,
which includes multiple wakeup, sleep, standby, and reset modes to
minimize power consumption for portable equipment.
In single cell Li-Ion applications two DC-DC converters are
configured as buck (step-down) regulators. In single cell Ni-MH or dry
cell applications, one DC-DC converter is configured as a boost
(step-up) regulator, and the other as buck-boost regulator. The DC-
DC converters' output voltages have set ranges 1.613 V to 3.2 V at
up to 120 mA, and 0.805 V to 1.5 V up to 100 mA through the serial
interface.
Device
18730
POWER MANAGEMENT IC
EP SUFFIX
98ARL10571D
64-TERMINAL 0.5 mm PITCH
QFN
ORDERING INFORMATION
Temperature
Range (T
A
)
-10°C to 65°C
Package
64 QFN
Features
• Operates from single cell Li-Ion, Ni-MH, or Alkaline
• 2 DC-DC Converters
• 3 Low Drop Regulators
• Serial Interface Sets Output Voltages
• 4 Wake Inputs
• Low Current Standby Mode
• Pb-Free Packaging Designated by Suffix Code EP
MPC18730
2.7 V to 4.2 V Input VB
VB
VO
VREF
RSTO1B
EXT_G_ON
VO
MPC18730EP/R2
VCC1
VO1
SW1
VCC2
VO2
Programmable
1.613 V to 3.2 V
Programmable
0.805 V to 1.5 V
MCU
SW2
SREGI1
SREGO1
RSTO2B
SREGI2
SREGO2
CONTROL
SREGI3
LOGIC
SREGO3
INPUTS
GND
PGND
VG
SWG
VB
Programmable
0.865 V to 2.8 V
Programmable
0.011 V to 2.8 V
Programmable
2.08 V to 2.8 V
Figure 1. MPC18730 Simplified Application Diagram
* This document contains information on a product under development.
Freescale reserves the right to change or discontinue this product without notice.
© Freescale Semiconductor, Inc., 2005. All rights reserved.
FREESCALE [ FREESCALE SEMICONDUCTOR, INC ]
