6014A–PMGMT–10/03
Power
Management for
Mobiles (PM)
AT73C204
Features
300 mA/1.9V/2.5V DC to DC for Co-processor Core
80 mA/2.8V Dual-mode LDO for Memories (LDO1)
130 mA/2.7V/2.8V LDO for Camera Module (LDO2)
130 mA/2.8V LDO for Analog Section Supply of Audio Stereo Codec (LDO6)
10 mA/1.8V/2.8V LDO for Digital Section Supply of Audio Stereo Codec (LDO7)
130 mA/2.8V LDO for Analog Section Supply of Bluetooth
®
Module (LDO4)
130 mA/2.8V LDO for Digital Section Supply of Bluetooth
®
Module (LDO5)
2 mA/2.4V/2.7V LDO for Low-power Device Control (LDO3)
Open Drain Switch
Three-channel Level Shifters
LED Driver
0.5 mA/1.5V Bufferized Voltage Reference
Power Management Start-up Controller and Reset Generation
Over- and Under-voltage Protections
Over-temperature Protection
Shutdown, Sleep and Enable Modes
Straightforward and Easy Interfacing to any Baseband Controller
Small 5 mm x 5 mm, 49-ball BGA Package
Description
The AT73C204 device provides an integrated power management solution for the add-
on multimedia features in new-generation mobile phones. These features include a
camera module, sound system for polyphonic ringing tones, memory module for
downloaded MP3 files, Bluetooth module for cordless headset, etc. The most common
approach to the IC architecture of these new-generation mobile phones is a baseband
processor for the basic telephony functions and a separate co-processor for the multi-
media features. Atmel proposes the AT73C202 for power management of the
baseband processor and RF elements, and the AT73C204 for power management of
the multimedia features.
The AT73C204 is suitable for any telecommunications standard: GSM/GPRS, PDS,
CDMA, CDMA2000, WCDMA or UMTS. It is packaged in a small form-factor 49-ball
5 mm x 5 mm BGA package.