General Descriptions
MT6329 is a power management system chip optimized for 2G/3G handsets and smart phones, especially those based on the MediaTek MT6575 system solution. MT6329 contains 15 buck converters and 21 LDOs, which are optimized for specific 2G/3G/smart phone subsystems.
MT6329 provides dual-channel, 0.7W into 8Ω, high efficiency Class AB/D audio amplifiers and flexibility for various applications of backlight LED drivers. It supports up to 6 WLEDs in parallel or alternative series 10WLED configurations. Flexible control keeps high power efficiency while supporting multiple drivers
Sophisticated controls are available for power up, battery charging and the RTC alarm. MT6329 is optimized for maximum battery life. The selectable 1-step or 2-step RTC LDO design makes MT6329 suitable for different RTC modules in BB chips. It allows the RTC circuit to stay alive without a battery for several hours. The battery charger in MT6329 supports lithium- ion (Li-ion) battery and provides precharge indication. The charger input voltage can be up to 10V and allows USB charging, too.
Some multi-purpose pins enable MT6329 to be configured in various applications. MT6329 implements dedicate analog switches, KPLED and 450mA FLASH LED driver. MT6329 adopts I2C interface to control buck converters (dedicate 2 pins DVFS control and 3 pins PA_SEL control), LDOs, Class AB/D, various drivers and charger. Besides, it provides enhanced safety control and protocol for handshaking with BB.
MT6329 is available in a 155-pin TFBGA package. The operating temperature ranges from -25 to +85°C.

FEATUREs
■ Handles all 2G/3G/smart phone baseband power management
■ Input range: 3.4 ~ 4.3V
■ Charger input of up to 10V
■ 5 buck converters and 21 LDOs optimized for specific 2G/3G/smart phone subsystems
■ Dual-channel, 3.7V 0.7W into 8Ω Class AB/D audio amplifiers
■ Flexibility for various configurations of backlight LED drivers: 6ISINK/10WLED boost controller
■ I2C interface
■ Pre-charge indication
■ Li-ion battery charging function
■ Multi-purpose pins support either current sinks or analog switches
■ Multi-purpose pins support either an RGB LED driver or an audio receiver
■ VPROC with DVFS control
■ Over-current and thermal overload protection
■ Programmable under voltage lockout protection
■ Watchdog timer
■ Flexibility hardware PMIC reset function
■ Power-on reset and start-up timer
■ Precision voltage, temperature, and current measurement fuel gauge
■ 155-pin TFBGA package