包括有功率管理IC如LDO，DC/DC轉換器，Li離子電池充電器，白光LED驅動器，電荷泵，RTC和GPIO以及16位音頻CODEC，16位立體聲DAC以及300mW揚聲器驅動器。廣泛應用在手持無線多媒體設備如智能手機，VoIP手機和PDA等。
本文介紹了AT3C206的主要性能，典型的應用電路圖以及各個主要功能的方框圖。
The AT73C206 is the integrated analog device for VoIP and Cellular phones. It
integrates a power management IC, which includes LDO, DC/DC converter, Li-ion
battery charger, White LED driver, Charge Pump, RTC and GPIO, as well as Audio
CODEC in one chip.
主要特性：
Power Supply Control
Power Supply Control: Power-on Factor (2 External Signals and 2 Internal Signals)
Battery Voltage Detection
Reset Detection
Thermal Protection
SMPL (Sudden Momentary Power Loss) Function
Power Supply Function
Step-down DC/DC Converter × 1 (One-shot PWM)
LDO × 9 (ECO-mode for LDO1 and 3)
Over-current Protection (All Linear Regulators)
Li-ion Battery Charger
CC/CV Charge
Internal P-MOS, Current Sense Resistor and Schottky Diode
Charge Current Control by Chip Temperature
White LED Driver and Charge Pump
White LED Driver for Backlight: Up to 25 mA/LED x 4
White LED Driver Charge Pump: Up to 100 mA
RTC
Built-In Coin Charge Regulator
32 kHz Crystal Oscillator (with Time Adjustment Function)
32 kHz Output
Audio CODEC
Voice CODEC: 16-bit Linear CODEC
Audio DAC: 16-bit Linear Stereo DAC
Tone Generator: Supports 16 DTMF Tones
Mono MIC Amplifier: Differential Amplifier
Stereo Headphone Amplifier: 22 mW (32 Ohm Load)
Mono Receiver Amplifier: 60 mW (32 Ohm BTL Load)
Mono Speaker Amplifier: 300 mW (8 Ohm BTL Load)
Microphone Bias Supply: Output Voltage = 2.2V
PLL
Jack Detect Input 200 kOhm Pull-up
CPU Interface
SPI (Max 10 MHz)
Others
GPIO 4ch2ch: Common Use with ADC Input
8-bit ADC (Battery Monitor, Charge Current Monitor, 2 Channels of External Input)
Package
96-pin CSP Package (Body size: 9 x 9 x 1mm, Pin pitch 0.8mm)
Process
CMOS Process
典型應用電路圖：
AT3C206電源控制和重置方框圖：
AT3C206 LDO 穩壓器方框圖：
AT3C206降壓DC/DC轉換器方框圖：
AT3C206白光LED 驅動器和電荷泵方框圖：
AT3C206 Li離子電池充電器方框圖：
AT3C206 4路8位 A/D 轉換器方框圖：
AT3C206 RTC 方框圖：
AT3C206 音頻CODEC 方框圖：
AT3C206 時鐘方框圖：
