MT6359VNP IC

Product Details
Product Details:

- Part Number: MT6359VNP (Marking: MT6359 VNP / MT6359V/NP)

- Related Family Siblings: MT6359VKP, MT6359VPP, MT6359VMP

- Manufacturer: MediaTek Inc. (MTK)

- Function: Primary System Power Management Integrated Circuit (Main PMIC / PMU)

- Power Architecture: High-efficiency Synchronous Multi-Phase Buck Regulators and multiple low-noise LDO linear regulators

- Control Interface: High-speed MediaTek SPMI / I2C Bus control with Dynamic Voltage Scaling (DVS)

- Built-In Safety: Integrated Over-Voltage (OVP), Over-Current (OCP), Under-Voltage Lockout (UVLO), and Thermal Shutdown (OTP)

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

- Mounting Type: Surface Mount Technology (SMD BGA Soldering / Reballing)

Usage:

- Complete System Power Delivery: Generates and regulates heavy-current power rails (VCORE, VPROC, VDRAM, VGPU, VIO, VSRAM) across the application processor, LPDDR4X RAM, and UFS flash storage.

- Target Devices:

* Xiaomi / Redmi: Redmi Note 8 Pro (Helio G90T platform), Redmi 10X 4G

* Oppo / Realme: Oppo Reno 2Z, Reno 2F, Realme 6, Realme 7

* Vivo / iQOO: Vivo NEX 3 (MTK variant), Vivo V21, Vivo S7e

* Other performance smartphones powered by MediaTek Helio G90/G95 series SoCs.

- Common Fault Symptoms & Motherboard Diagnostics:

* Dead Phone (No Power / No Boot): Phone does not turn on; on a DC power supply, current pulses slightly (e.g. 0.04A–0.09A) and stops, indicating a failure to initiate the primary boot sequence.

* Buck Coil Short Circuit: Inductors/coils surrounding MT6359VNP measure zero resistance to ground, causing the IC to heat up instantly when power is injected.

* Hang on Logo / Boot Loop: Voltage instability on the VDRAM or VSRAM rails leads to kernel crash on the Redmi/Oppo startup logo.

* Gaming Heat Stress: Due to the high thermal load on gaming phones (like Redmi Note 8 Pro), solder joints beneath this BGA chip often degrade over time, which can be resolved by reballing or chip replacement.