Features • • • • • • • • • • • • • • • • • 300mA/1.8V/2.5V Switching Regulator for Baseband Supply 2.8V/80mA LDO for Baseband Pad Supply Two 130mA/2.8V Low-noise, High PSRR RF LDO Voltage Regulators 130mA/2.7V/2.8V Baseband Low-noise, High PSRR Analog LDO Regulator Ultra Low-power RTC LDO Voltage Regulator Backup Battery Charger Li-Ion or Li-polymer Battery Charger Controller Buzzer and Vibrator Drivers Charging LED Driver Power Management Start-up Controller and Reset Generation SIM Level Shifters and SIM 10mA/1.8V/2.8V LDO Voltage Regulator Ultra-low Sleep Mode Current Consumption (17 µA typ) Over and Under Voltage Protections Over Temperature Protection Low-power Mode and Sleep Mode Straight and Easy Interfacing to any Baseband Controller Small 5x5mm, Forty-nine Ball FBGA Package Power Management for Mobiles (PM) AT73C202 Description The AT73C202 is a low-cost, ultra low-power, power and battery management IC designed to interface directly with state-of-the-art cellular phones, for example with 2.5G GSM phones. It includes all required power supplies tailored to be fully compatible with the sub-systems of recent mobile phone chipsets, including the RF, analog and digital (DSP, microcontroller, memories) sections. Summary The AT73C202 integrates a step-down DC-DC converter that supplies 300 mA with internal switches and two levels of voltage programming for the baseband core (1.8V and 2.5V). A low-power mode is available in order to minimize standby current consumption during the “quiet” transmission periods. In addition, the AT73C202 includes a lowcost battery charger, using a simple external PNP transistor for Li-Ion or Li-Polymer batteries. Battery operating conditions are maintained within safe limits under hardware control during the start-up procedure (when the phone is turned on or a charger is plugged in). The battery pre-charge is also integrated and self-operated by the AT73C202. On completion the fast charge and end-of-charge procedure is transferred to the baseband software. The AT73C202 integrates 7 low-dropout linear regulators specifically designed to supply RF (x2), analog, memories, etc. It also includes a back-up battery charger and an ultra low-power regulator dedicated to the baseband real-time clock (RTC) supply during sleep mode. The hardwired start-up mechanism (power management controller state machine) ensures safe telephone operation during the wake-up and shut-down procedures, and during the multiple real-life operating conditions of a mobile phone (such charger plugin, plug-out, battery plug-in, plug-out, low or dead battery, etc.). The AT73C202 is packaged into a 49 ball (7x7 matrix), 0.65mm pitch, 5mm x 5mm outline FBGA package. 2740BS–PMGMT–12/03 Note: This is a summary document. A complete document 1 is available on our Web site at www.atmel.com. Functional Diagram Figure 1. AT73C202 Functional Diagram D3 GATE-CHG D2 CHG-IN VBAT CHG Charger Controller C3 C1 F5 E5 D4 FLASH-LED AA-GND Reset Generator BB1 EN DC-DC Converter 1.8V/2.5V 300mA EN I/O PAD LDO 2.8V/130mA ECO-MODE EN-ANA-B UP-ON-OFF C6 EN A5 A3 B2 Analog LDO 2.7V/2.8V/130mA VIN-REG2 A-GND V-BCK BAT-RTC VIN > 2.6V C7 GND-REG1 A-VCC DC-ON D6 V-CORE V-PAD ON-OFF D5 RES-B LX VIN-REG1 B5 D1 CREF VREF EN D7 V-RTC VCC-RTC 1.5V/0.5mA VIN-RF V-RF1 EN-RF1 RF1 LDO 2.8V/130mA EN-RF2 RF2 LDO 2.8V/130mA VIN-VIB EN-VIB E6 C5 G1 E4 F3 2 GND-RF V-VIB VIBRATOR LDO 2.8V/130mA BUZ-OUT BUZ-GND D-VCC SIM-EN SIM-1V8/2V8 SIM-VCC F7 G4 G7 B6 B4 A7 A6 B7 B1 A1 A2 E7 B3 CLK-IN A4 E3 SIM LDO 1.8V/2.8V/10mA RESET-IN DATA-IO G2 F6 BUZ-IN G3 F4 C2 2.4V/2.7V/2mA V-RF2 C4 E1 D-GND BAT-VOLT G6 G5 LED-OUT SIM-RST SIM Level Shifter SIM-CLK SIM-IO F1 F2 E2 AT73C202 2740BS–PMGMT–12/03 Atmel Corporation 2325 Orchard Parkway San Jose, CA 95131, USA Tel: 1(408) 441-0311 Fax: 1(408) 487-2600 Regional Headquarters Europe Atmel Sarl Route des Arsenaux 41 Case Postale 80 CH-1705 Fribourg Switzerland Tel: (41) 26-426-5555 Fax: (41) 26-426-5500 Asia Room 1219 Chinachem Golden Plaza 77 Mody Road Tsimshatsui East Kowloon Hong Kong Tel: (852) 2721-9778 Fax: (852) 2722-1369 Japan 9F, Tonetsu Shinkawa Bldg. 1-24-8 Shinkawa Chuo-ku, Tokyo 104-0033 Japan Tel: (81) 3-3523-3551 Fax: (81) 3-3523-7581 Atmel Operations Memory 2325 Orchard Parkway San Jose, CA 95131, USA Tel: 1(408) 441-0311 Fax: 1(408) 436-4314 RF/Automotive Theresienstrasse 2 Postfach 3535 74025 Heilbronn, Germany Tel: (49) 71-31-67-0 Fax: (49) 71-31-67-2340 Microcontrollers 2325 Orchard Parkway San Jose, CA 95131, USA Tel: 1(408) 441-0311 Fax: 1(408) 436-4314 La Chantrerie BP 70602 44306 Nantes Cedex 3, France Tel: (33) 2-40-18-18-18 Fax: (33) 2-40-18-19-60 ASIC/ASSP/Smart Cards 1150 East Cheyenne Mtn. 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The Company assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein. No licenses to patents or other intellectual property of Atmel are granted by the Company in connection with the sale of Atmel products, expressly or by implication. Atmel’s products are not authorized for use as critical components in life support devices or systems. © Atmel Corporation 2003. All rights reserved. Atmel ® and combinations thereof are the registered trademarks of Atmel Corporation or its subsidiaries. Other terms and product names may be the trademarks of others. Printed on recycled paper. 2740BS–PMGMT–12/03 0M