AS3603资料

austriamicrosystems

Fact Sheet

AS3603

Multi-Standard Power Management Unit1 General Description

The AS3603 is a highly-integrated, ultra-flexible CMOS power management device designed specifically for portable devices such as any standard of mobile phones, PDAs, CD players,digital cameras and other devices powered by 1-cell lithium-based or 3- 4-cell nickel-based batteries.

The device incorporates low dropout regulators (LDOs), DC/DC converters, a complete battery charger, and an audio power amplifier onto one die.

The linear analog LDOs feature extremely high perfor-mance regarding:

Noise – typ 30µVRMS from 100Hz to 100kHz

! Line/Load Regulation – < 1mV static and < 10mV tran-sient

!Power Supply Rejection – > 70dB @ 1kHz

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2 Key Features

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Ten Programmable High Performance LDOs

-2 Digital Low Power LDOs (0.75-2.5V, 200mA)-3 RF Low Noise LDOs (1.85 - 3.4V, 150mA)-2 RF Low Noise LDOs (1.85 - 3.4V, 75mA)-1 SIM Low Power LDO (3.0V, 20mA)

-1 Periphery Low Noise LDO (2.5 - 3.2V, 150mA)-1 Low Power LDO (2.5V, 10mA)

Programmable High Efficiency DC/DC Converters-Step Down: 1.0 - 3.0V, up to 500mA-Step Up: 15V, 45mA, (for White LEDs)Stereo Audio Power Amplifier-0.5W@4Ω -stereo-1W@8Ω -bridged

-Digital Volume Control, 3dB Steps

-Click- and Pop-Less Start-Up and Power-Down Complete Chemistry-Independent Battery Charger-Integrated Fuel Gauge-Automatic Trickle Charging

-Programmable Constant Current Charging-Programmable Constant Voltage Charging-Programmable Pulse Charging

-Safety Functions (Low Battery Shutdown)-Operation without Battery-No-Battery detection

Four 8-Bit Programmable Current Sources (0.625mA - 160mA) support:-Buzzer-Vibrator-LEDs

!

The integrated Step Down DC/DC Converter does not require an external Schottky diode yet provides very high efficiency (up to 95%) throughout the whole operating

range. It can be either used as a stand-alone device or as a pre-regulatorfor LDOs to increase overall device efficiency. A Step Up DC/DC Converter is included to supply power for white LEDs together with programmable current sources to control LED brightness.

A low-distortion audio power amplifier (1 Watt @ 8Ω) sup-ports handsfree mobile phone operation and HiFi ring-tones.

The device also features a chemistry-independent battery charger including fuel gauge circuitry, automatic trickle charging, programmable constant current, constant voltage and pulse charging.

The AS3603 is controlled via a serial interface and inte-grates all necessary system specific functions such as Reset, Watchdog, and Power-On Detection.

Regulator output voltages are programmable by software. Eight preset startup timings can be selected by an external resistor.

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Wide Battery Supply Range 3.0V - 5.5V

!Four General Purpose Switches (1Ω and 2Ω)!Four Programmable General Purpose I/O Pins

!On-Chip Bandgap Tuning for High Accuracy (+/-1%)!Integrated Programmable Watchdog (7.5 - 1900ms)!Programmable Reset (10 - 110ms)

!Shutdown Current typ 7µA (2.5V Always On)!Overcurrent and Thermal Protection!0.35µ CMOS Solution

!48-pin, 6x6mm QFN Package (0.4mm pitch)!48-pin, 7x7mm QFN Package (0.5mm pitch)!2.1 Watt Power Dissipation @ TAMBIENT = 70ºC

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3 Application

This data sheet is applicable for device versions: AS3603-FxC!AS3603-GxC

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Multi-standard power management for mobile phones, PDAs, and 1-cell Li+ or 3 to 4-cell Ni-Mh powered devices.

Copyright © 1997-2004, austriamicrosystems AG, Schloss Premstaetten, 8141 Unterpremstaetten, Austria-Europe. www.austriamicrosystems.comRevision 2.01 - 2

元器件交易网www.cecb2b.com

AS3603 Fact Sheet

austriamicrosystems

4 Block Diagram

Figure 1. AS3603 Block Diagram. Option: Audio Amplifier In Differential Mode, Step Down DC/DC Converter as

Pre-regulator for Digital LDOs

BuzzerVibratorCURR432CURR333WhiteLEDsCURR234CURR135C11µFD1MBR0520L122µHVBATCAPP2CAPN3C2330nFSTEPUP36Current Source4x(0.6-160mA)Step Up DC/DC Converter≤15V45mAV2_5Charge Pump4.74-5.25V30mA1V5_6C31µFV5_6 Charge Pump4VBAT_3VBATC221µF30Analog LDOLow Noise2.5-3.2V150mAVANA_1 C41µFBasebandAnalog5VBAT_1 C51µFC61µF3.0-5.5VBasebandCoreAS3603AOUT_LAIN_LC23100nFAGNDAIN_RC24100nFAOUT_RDC Charger Adapter ≤15VVCHARGERC261µFQ1Si3441VBATAll caps on VBAT C27≥10µF total3.6V Li-Ion3.6V Ni-MH4.8V Ni-MHR247kΩR450mΩC28100nFR347kΩISENSEN16VANA_1 272512131114ISENSEP15R12kΩVGATE212920313728AudioIn≥8ΩLS1C25100nF38Analog LDOLow Noise1.85-3.4V150mARF LDOLow Noise1.85-3.4V150mA6VANA_29VRF_1 C81µFPower ManagementUnit1W Audio AmplifierRFTransmitter8VBAT_43.0-5.5VC91µFC101µFRFReceiverRF LDOLow Noise1.85-3.4V150mARF LDOLow Noise1.85-3.4V75mA7VRF_2 IN_R17VRF_3 C111µFVCOTXCO18VBAT_5C121µFC131µFVBATNi-Mh, Li-Ion,Li-Po Battery Charger and Fuel GaugeRF LDOLow Noise1.85-3.4V75mAInternal LDO2.5V10mA19VRF_4 Synthesizeretc.22VANA_1 V5_6V2_5C71µFV2_5ON Switch44GPIO1GPIO2GPIO3GPIO4VDIG_1C141µFFlashMemoryBasebandCore (Alternate)_Interrupt, LCD Control, etc.GPIO4342PORDigital LDO0.75-2.5V200mADigital LDO0.75-2.5V200mADigital Logic and ReferencesI/FBootROMGND_PAD10RESET23RBIASR6220kΩ26CREFC291µF24RPROGRAMR7RPROGRAMPadFeedback41GND_SENSEONV2_5 or VBATSDI39VDIG_2C151µF404748VDD_DIGVBAT_2LXC161µF1.0-5.5VVBAT3.0-5.5V

L247µHC171µFC19100nFBaseband PeripheralsC1810µFSIM CardVSIMSerialInterfaceSCLKSDOSCSBStep Down DC/DC Converter1.0-3.0V, 500mASIM LDO3.0V,20mA46VANA_1 RESETR5100kΩCopyright © 1997-2004, austriamicrosystems AG, Schloss Premstaetten, 8141 Unterpremstaetten, Austria-Europe. www.austriamicrosystems.comRevision 2.02 - 2