austriamicrosystems AS3603 Fact Sheet Multi-Standard Power Management Unit 1 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 lithiumbased 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. 2 Key Features ! ! The linear analog LDOs feature extremely high performance regarding: Noise – typ 30µVRMS from 100Hz to 100kHz ! Line/Load Regulation – < 1mV static and < 10mV transient ! Power Supply Rejection – > 70dB @ 1kHz ! ! 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-regulator for 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) supports handsfree mobile phone operation and HiFi ringtones. 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 integrates 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. ! 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 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 ! 3 Application This data sheet is applicable for device versions: ! ! AS3603-FxC AS3603-GxC 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.com Revision 2.0 1-2 austriam i c r o systems AS360 3 Fa ct Shee t 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 Buzzer Vibrator CURR4 32 CURR3 CURR2 33 34 D1 MBR0520 C1 1µF White LEDs CURR1 35 36 Step Up DC/ DC Converter ≤15V 45mA Current Source 4x(0.6-160mA) VBAT_3 L1 22µH STEPUP C2 330nF VBAT V2_5 Analog LDO Low Noise 2.5-3.2V 150mA 30 C22 1µF AS3603 Audio In ≥8Ω LS1 AIN_L 38 C23 100nF C25 100nF AGND 31 AIN_R 37 AOUT_R 29 VCHARGER 20 C26 1µF VGATE Q1 Si3441 21 3.6V Li-Ion 3.6V Ni-MH 4.8V Ni-MH R2 47kΩ R4 50mΩ 1W Audio Amplifier ISENSEP Ni-Mh, Li-Ion, Li-Po Battery Charger and Fuel Gauge Internal LDO 2.5V 10mA ISENSEN GND_SENSE 27 ON 25 SDI 12 7 RF LDO Low Noise 1.85-3.4V 75mA 17 SCLK 13 SDO 11 SCSB 14 Serial Interface Feedback Step Down DC/DC Converter 1.0-3.0V, 500mA Boot ROM GND_PAD 10 RESET VANA_1 RESET R5 100kΩ 23 26 24 RBIAS CREF RPROGRAM R6 220kΩ C29 1µF R7 Pad 19 SIM LDO 3.0V,20mA VRF_2 VRF_3 VBAT_5 VRF_4 GPIO1 44 GPIO2 43 GPIO3 42 GPIO4 41 VDIG_1 47 VBAT_2 48 LX Synthesizer etc. V2_5 ON Switch Interrupt, LCD Control, etc. VDIG_2 VDD_DIG VCO TXCO VBAT C14 1µF 40 RF Receiver C12 1µF V2_5 45 C15 1µF Flash Memory Baseband Core (Alternate)_ 1.0-5.5V VBAT 3.0-5.5V L2 47µH 46 RF Transmitter 3.0-5.5V C13 1µF 39 Baseband Core C9 1µF C11 1µF 18 3.0-5.5V VBAT_4 C7 1µF VANA_1 V5_6 Digital LDO 0.75-2.5V 200mA I/F VRF_1 C10 1µF 22 Digital LDO 0.75-2.5V 200mA Digital Logic and References VANA_2 C5 1µF C8 1µF 8 Baseband Analog VBAT_1 C6 1µF RF LDO Low Noise 1.85-3.4V 150mA POR V2_5 or VBAT 5 V5_6 Charge Pump VANA_1 C4 1µF 9 GPIO VANA_1 4 RF LDO Low Noise 1.85-3.4V 150mA 15 16 V5_6 C3 1µF 6 C28 100nF R3 47kΩ 1 Analog LDO Low Noise 1.85-3.4V 150mA RF LDO Low Noise 1.85-3.4V 75mA R1 2kΩ VBAT All caps on VBAT C27 ≥10µF total Power Management Unit C24 100nF IN_R DC Charger Adapter ≤15V 28 CAPN 3 Charge Pump 4.74-5.25V 30mA VBAT AOUT_L CAPP 2 C16 1µF C17 1µF VSIM C19 100nF Baseband Peripherals C18 10µF SIM Card RPROGRAM Copyright © 1997-2004, austriamicrosystems AG, Schloss Premstaetten, 8141 Unterpremstaetten, Austria-Europe. www.austriamicrosystems.com Revision 2.0 2-2