Power Management IC

www.DataSheet4U.com Freescale Semiconductor Advance Information Document Number: MPC18730 Rev. 4.0, 8/2006 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 DCDC 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. 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 VB VBATT VO VREF PGOOD1 VGATE_EXT VO 18730 POWER MANAGEMENT IC EP SUFFIX (PB-FREE) 98ARL10571D 64-PIN QFN ORDERING INFORMATION Device MPC18730EP/R2 Temperature Range (TA) -10°C to 65°C Package 64 QFN MPC18730 VOUT1 VO1_SENSE SW1 VOUT2 VO2_SENSE SW2 SREGI1 SREGO1 SREGI2 SREGO2 SREGI3 SREGO3 VGATE SWGATE VB Programmable 1.613 V to 3.2 V Programmable 0.805 V to 1.5 V PGOOD2 MCU { Programmable 0.865 V to 2.8 V Programmable 0.011 V to 2.8 V Programmable 2.08 V to 2.8 V CONTROL LOGIC INPUTS GND GNDGATE Figure 1. MPC18730 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., 2006. All rights reserved. INTERNAL BLOCK DIAGRAM INTERNAL BLOCK DIAGRAM HVB LVB Driver VMODE VMODE VO1_SENSE PGOOD1(Int) VO1_SENSE PGOOD1(Int) BANDGAP REFERENCE CLEAR VGATE PGOOD1(Int) POWER PGOOD1(Int) VO1_SENSE SWITCH1 REF1 VGATE Step-UpDown DC/DC Converter CH1 VBATT VBATT LVB V_STDBY VOUT1 VREF VREF LSWO VO1_SENSE PGOOD1 RESET Block 1 PGOOD1_DELAY RESET1_TH EAIN1 EAOUT1 VO1_SENSE VIN1 SW1 PGND1 VGATE VOUT2 VO2_SENSE_IN VO2_SENSE HG REF2 Step-UpDown DC/DC Converter CH2 LG VIN2 DMAX1 VO1_SENSE PGOOD2 RESET Block 2 PGOOD2_DELAY EAOUT2 EAIN2 PGOOD2(Int) VGATE PGOOD2(Int) POWER SWITCH2 SW2 DMAX2 VGATE REF3 SREGC1 Series Pass Regulator1 VGATE SREGC2 REF4 V_STDBY SREGC3 VO1_SENSE VBATT WAKE1B WAKE2B WAKE3B WAKE4B SEQ_SELECT DATA STRB SCKIN CLEAR SLEEP EXT_CLOCK GND VGATESEL1 VGATESEL2 WATCHDOG REF DAC REF5 VGATE Series Pass Regulator3 VBATT EXT_CLOCK Series Pass Regulator2 PGND2 SREGI1 SREGO1 SREGI2 SREGO2 SREG2G SREGI3 SREGO3 CH_PUMP PGOOD1(Int) CPoff PGOOD2 VBATT VGATE CONTROL (Int) SEQ_SELECT Control VO1_SENSE Logic Step-Up VG_SELECT DC/DC VGATE_DUTY Convertor REF2 REF1 REF4 REF5 On VREF VGATE EXT gate On Buffer VGATE SWGATE GNDGATE REF3 VGATE_EXT Figure 2. MPC18730 Simplified Internal Block Diagram 18730 2 Analog Integrated Circuit Device Data Freescale Semiconductor PIN CONNECTIONS PIN CONNECTIONS SEQ_SELECT EXT_CLOCK WATCHDOG SREG2G SREGO1 SREGO2 SREGC1 SREGI1 SREGI2 SLEEP SCKIN VREF STRB DATA GND CLEAR WAKE4B WAKE3B WAKE2B WAKE1B LSWO LVB HVB V_STDBY VO1_SENSE VOUT1 VIN1 SW1 SW1 PGND1 PGND1 1 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 2 48 3 4 5 6 7 8 9 10 11 12 13 14 15 16 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 17 VGATESEL2 DMAX1 VBATT PGOOD1_DELAY VGATESEL1 RESET1_TH PGOOD1 EAOUT1 CH_PUMP SWGATE GNDGATE EAOUT2 DMAX2 EAIN1 VGATE EAIN2 49 SREGC2 SREGI3 SREGO3 SREGC3 VGATE_EXT LG HG VO2_SENSE VO2_SENSE_IN VOUT2 VIN2 SW2 SW2 PGND2 PGND2 PGOOD2 47 46 45 44 43 42 41 TOP VIEW 40 39 38 37 36 35 34 33 PGOOD2_DELAY Figure 3. MPC18730 Pin Connections Table 1. MPC18730 Pin Definitions A functional description of each pin can be found in the Functional Pin Description section beginning on page 14. Pin Number 1 2 3 4 5 6 Pin Name CLEAR WAKE4B WAKE3B WAKE2B WAKE1B LSWO Pin Function Input Input Input Input Input Output Formal Name Clear Wake Signal 4 Wake Signal 3 Wake Signal 2 Wake Signal 1 Low-Side Switch Output Definition Start-up Signal Input Latch/Clear Start-up Signal Input 4 Start-up Signal Input 3 Start-up Signal Input 2 Start-up Signal Input 1 Low-Side Switch Output Pin 18730 Analog Integrated Circuit Device Data Freescale Semiconductor 3 PIN CONNECTIONS Table 1. MPC18730 Pin Definitions (continued) A functional description of each pin can be found in the Functional Pin Description section beginning on page 14. Pin Number 7 8 9 10 11 12 13 14 15 16 17 Pin Name LVB HVB V_STDBY VO1_SENSE VOUT1 VIN1 SW1 SW1 PGND1 PGND1 PGOOD1 Pin Function Input Input Output Input Output Output Power Power Ground Ground Output Formal Name Low Voltage Battery High Voltage Battery Standby Voltage Voltage Input 1 Voltage Output 1 Voltage Output 1 Switching 1 Switching 1 Power Ground 1 Power Ground 1 Inverted Reset Output 1 18 PGOOD1_DELAY Input Reset Delay Capacitor 1 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 RESET1_TH DMAX1 EAOUT1 EAIN1 CH_PUMP VGATE SWGATE GNDGATE VBATT VGATESEL2 VGATESEL1 EAIN2 EAOUT2 DMAX2 PGOOD2_DELAY Output Power Output Input Power Output Power Ground Power Output Output Input Output Power Input Reset1 Adjustment Duty Control Reference Feedback 1 Input Minus 1 Charge Pump Capacitor Gate Voltage Switching Power Ground 3 Battery Voltage VGATE Select 2 VGATE Select 1 Input Minus Reference Feedback 2 Duty Control Reset Delay Capacitor 1 34 PGOOD2 Output Inverted Reset Output 2 35 36 PGND2 PGND2 Ground Ground Power Ground 2 Power Ground 2 Switching Power Supply Circuit 2 Power GND Switching Power Supply Circuit 2 Power GND Reset Circuit 2 Reset Signal Output Switching Power Supply Circuit 1 Reset Voltage Reference Output Switching Power Supply Circuit 1 Maximum Duty Setting Switching Power Supply Circuit 1 Error Amp Output Switching Power Supply Circuit 1 Error Amp Inverse Input VGATE Power Supply Circuit Charge Pump Capacitor Connection VGATE Power Supply Circuit Voltage Output, Pre-Diver Circuit Power Supply VGATE Power Supply Circuit Coil Connection VGATE Power Supply Circuit Power GND VB Power Supply Connection VG Power Supply Circuit Output Voltage Setting 2 VGATE Power Supply Circuit Output Voltage Setting 1 Switching Power Supply Circuit 2 Error Amp Inverting Input Switching Power Supply Circuit 2 Error Amp Output Switching Power Supply Circuit 2 Maximum Duty Setting Reset Circuit 2 Reset Signal Delay Capacitor Connection Reset Circuit 1 Reset Signal Delaying Capacitor Connection Definition VB Power Supply Connection for Ni_mh VB Power Supply Connection for Li_ion V_STDBY Voltage Output Switching Power Supply Circuit 1, VO1_SENSE Voltage Input, VO1_SENSE Power Supply Power Switch 1 Output Switching Power Supply Circuit 1 Output Switching Power Supply Circuit 1 Coil Connection Switching Power Supply Circuit 1 Coil Connection Switching Power Supply Circuit 1 Power GND Switching Power Supply Circuit 1 Power GND Reset Circuit 1 Reset Signal Output 18730 4 Analog Integrated Circuit Device Data Freescale Semiconductor PIN CONNECTIONS Table 1. MPC18730 Pin Definitions (continued) A functional description of each pin can be found in the Functional Pin Description section beginning on page 14. Pin Number 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 Pin Name SW2 SW2 VIN2 VOUT2 VO2_SENSE_IN VO2_SENSE HG LG VGATE_EXT SREGC3 SREGO3 SREGI3 SREGC2 SREG2G SREGO2 SREGI2 SREGC1 SREGO1 SREGI1 GND VREF DATA STRB SCKIN WATCHDOG SEQ_SELECT EXT_CLOCK SLEEP Pin Function Power Power Output Output Input Input Output Output Output Power Output Power Power Output Output Power Power Output Power Ground Output Input Input Input Input Input Input Input Formal Name Switching Switching Voltage Output Voltage Output Voltage Input Voltage Input Definition Switching Power Supply Circuit 2 Coil Connection Switching Power Supply Circuit 2 Coil Connection Switching Power Supply Circuit 2 Output Power Switch 2 Output Power Switch 2 Voltage Input Switching Power Supply Circuit 2 VO2_SENSE Voltage Input Step Down Top FET 2 Switching Power Supply Circuit 2 Step down Top side FET Gate Output for Ni_mh Step Down Bottom FET 2 Gate Switch Switching Power Supply Circuit 2 Step down Bottom side FRT Gate Output for Ni_mh External Transistor Gate Signal Output Regulator Capacitor 3 Series Pass Power Supply Circuit 3 External Feedback Connection Regulator Output 3 Regulator Input 3 Series Pass Power Supply Circuit 3 Output Series Pass Power Supply Circuit 3 Power Supply Regulator Capacitor 2 Series Pass Power Supply Circuit 2 External Feedback Connection Regulator Gate Output 2 Regulator Output 2 Regulator Input 2 Series Pass Power Supply Circuit 2 External Transistor Gate Signal Output Series Pass Power Supply Circuit 2 Output Series Pass Power Supply Circuit 2 Power Supply Regulator Capacitor 1 Series Pass Power Supply Circuit 1 External Feedback Connection Regulator Output 1 Regulator Input 1 Ground Reference Voltage Data Signal Strobe Serial Clock Watch Dog Timer Sequence Input Clock Input Sleep Signal Series Pass Power Supply Circuit 1 Output Series Pass Power Supply Circuit 1 Power Supply GND Reference Voltage Output Serial Interface Data Signal Input Serial Interface Strobe Signal Input Serial Interface Clock Signal Input Watchdog Timer Capacitor Connection Start-Up Sequence Setting Input External Synchronous Clock Signal Input Sleep Signal Input 18730 Analog Integrated Circuit Device Data Freescale Semi