MT6350V IC

Product Details
Product Details:

- Part Number: MT6350V (Marking: MT6350V / MT6350V/A)

- Manufacturer: MediaTek Inc. (MTK)

- Companion SoC Platforms: MediaTek MT6737, MT6737M, MT6735, MT6580

- Function: Master System Power Management IC (PMIC) with Integrated Switching Charger & Audio Codec

- Internal Architecture & Subsystems:

* Synchronous Step-Down Buck Converters (VCORE for CPU Core, VGPU, VMODEM, VDRAM / LPDDR3, VSYS / VIO)

* High-PSRR Low-Dropout Linear Regulators (LDOs dedicated to eMMC storage, Camera modules, Sensors, SIM, Wi-Fi/BT)

* Integrated Switching Battery Charger & USB Over-Voltage Protection (OVP) with NTC Thermal Sensing

* Built-in Audio Subsystem (Stereo DAC, Headphone Amplifier, Loudspeaker Driver, Analog Mic Preamp)

* Hardware Power-On Sequencing State Machine, Reset Logic, and 32.768 kHz RTC Crystal Driver

- Package Type: Fine-Pitch BGA (Ball Grid Array)

- Stencil Compatibility: Amaoe Universal MTK PMIC / Small ICs Stencil (0.12mm)

- Recommended Solder Paste: 183°C Leaded Solder Paste

Usage:

- Core Power Management: Distributes battery power (VBAT) and 5V USB charger input into regulated high-current power rails required to power up the CPU, flash memory, and baseband.

- Target Devices & Compatible Models:

* Tecno: Tecno Spark 2 (KA7), Tecno Spark Plus (K9), Tecno Pop 1 (F3), Tecno Pop 2 Plus, Tecno W3, Tecno WX3, Tecno L9 Plus

* Infinix: Infinix Hot 5 (X559 / X559C), Infinix Hot 6 (X606), Infinix Smart 2 (X5515)

* Asus: Asus Zenfone Go (ZB452KG / Z00SD, Z00VD, Z00YD)

* Alcatel / Acer: Alcatel 5022D, Alcatel 4034D, Acer Liquid Zest

* Xiaomi / Meizu: Entry-level MTK boards and specific Meizu M3 Note regional board revisions

- Common Fault Symptoms & Motherboard Diagnostics:

* Completely Dead Phone (0.00A or Static 0.01A–0.02A Hang):

- Device shows zero power response. Pressing power key yields 0.00A on DC bench supply (open PWRKEY or broken 32.768 kHz RTC oscillator) or freezes at 0.02A (shorted secondary LDO rail).

* Fake Charging / Shows Charging Icon But Battery Drains:

- Lightning animation appears on screen or red LED lights up, but battery percentage stays flat or drops under use due to damaged charging buck MOSFETs inside MT6350V.

* Dead After Flashing (Common on Infinix Hot 5 / Tecno Spark 2):

- Board dies during software flashing via SP Flash Tool or box tools; high-load read/write operations cause degraded internal buck converter switches to collapse.

* Auto MediaTek USB Port (BROM Mode):

- Screen stays black, but connecting via USB to PC immediately enumerates as "MediaTek USB Port (COMxx)" because the CPU starts in ROM recovery mode while eMMC memory power rails are unpowered.

* Standby Heating & High Current Leakage:

- MT6350V becomes warm to the touch immediately upon battery connection due to high-side gate puncture on the VCORE or VSYS rail.

* Audio Loss (Speaker & Mic Failure):

- Loudspeaker or microphone stops functioning permanently despite replacing hardware speakers, caused by a burnt internal analog audio codec block.