MT6323 Datasheet, PDF (4/14 Pages) List of Unclassifed Manufacturers – PMIC Technical Brief

1 Overview
1.1 Features
„ Handles all 2G/3G/smart phone baseband
power management
„ Input range: 3.4 ~ 4.5V
„ 3 buck converters and 23 LDOs optimized
for specific 2G/3G/smart phone
subsystems
„ Full-set high-quality audio feature:
Supports uplink/downlink audio CODEC
and high-power/quality audio amplifier
„ 32K RTC crystal oscillator for system
timing, 1.8 and 2.8V clock buffer output
„ Multiple function GPIO
„ Flexibility for various configurations of
indicator LED current source: 4ISINK
„ SPI interface
„ Li-ion battery charging function
„ 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
„ VFBGA - 145L package
1.2 Applications
Ideal for power management of 2G, 3G, smart
phones and other portable systems.
MT6323
PMIC Technical Brief
Confidential A
optimized for specific 2G/3G/smart phone
subsystems.
MT6323 provides mono 0.7W into 8Ω, high
efficiency Class AB/D audio amplifiers and
flexibility for various applications of indicator
LED drivers. It supports up to 4 channel LEDs
with independent controlled. Flexible control
includes: register mode, PWM mode and breath
mode.
Sophisticated controls are available for power-
up, battery charging and the RTC alarm.
MT6323 is optimized for maximum battery life. It
allows the RTC circuit to stay alive without a
battery for several hours. The battery charger in
MT6323 supports lithium- ion (Li-ion) battery
and provides pre-charge indication. The charger
input voltage can be up to 10V and allows USB
charging, too.
Some multi-purpose pins enable MT6323 to be
configured in various applications.
MT6323 adopts SPI interface and SRCLKEN
control pin to control buck converters, LDOs,
Class AB/D, various drivers and charger.
Besides, it provides enhanced safety control
and protocol for handshaking with BB.
MT6323 is available in a VFBGA - 145L
package. The operating temperature ranges
from -25 to +85°C.
1.3 General Descriptions
MT6323 is a power management system chip
optimized for 2G/3G handsets and smart
phones, especially based on the MediaTek
MT6572 system solution. MT6323 contains 3
buck converters and 23 LDOs, which are
MediaTek Confidential
© 2013 MediaTek Inc.
This document contains information that is proprietary to MediaTek Inc.
Unauthorized reproduction or disclosure of this information in whole or in part is strictly prohibited.
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