MT6359VPP IC

Product Details
Product Details:

- Part Number: MT6359VPP

- Sibling Variants: MT6359VKP, MT6359P, MT6359VNP, MT6359VMP

- Manufacturer: MediaTek Inc. (MTK)

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

- Regulators Architecture:

* Multi-Phase Synchronous Step-Down DC/DC Buck Regulators (delivering high-amperage, ultra-stable rails to CPU Core, GPU, VDRAM, and Modem)

* Comprehensive Array of Low-Noise LDO Regulators for Display Subsystems, Camera Image Sensors, UFS/eMMC Storage, and Audio Codecs

- System Management:

* Master Power-On, Reset, and Sleep Sequencing Controller (PMIC_RESET_B)

* Real-Time Clock (RTC) 32.768 kHz oscillator and alarm logic

* Integrated Battery Fuel Gauge and Voltage/Current Telemetry ADC

* Programmable Over-Current Protection (OCP), Thermal Shutdown, and Under-Voltage Lockout (UVLO)

- Package Type: Fine-Pitch BGA / WLCSP

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

Usage:

- Core Power Regulation: Steps down the primary battery line (VBAT / VPH_PWR) into dynamic core voltage rails, coordinating system power delivery for MediaTek Helio G90T (MT6785), Helio P90 (MT6779), and early Dimensity 5G processors.

- Target Devices & Compatible Models:

* Xiaomi / Redmi / POCO: Redmi Note 8 Pro (Helio G90T platform), Redmi 10X 5G, Redmi K30 Ultra

* Oppo / Realme: Oppo Reno 2, Oppo Reno 3, Realme 6, Realme 7, Realme Narzo 20 Pro, Narzo 30

* Infinix / Tecno: Infinix Zero 8, Zero 8i, Tecno Camon 16 Premier

* Vivo: Vivo NEX 3 (MTK version), Vivo S7t

- Common Fault Symptoms & Motherboard Diagnostics:

* Dead Phone (No Power / Zero Current or Low Pulse): Device does not turn on; on a DC bench supply, pressing the power button draws a low pulse (0.03A–0.08A) and immediately falls to zero when released due to missing VCORE, absent VIO18 (1.8V), or interrupted reset handshake.

* Direct VPH_PWR / VBAT Short Circuit: Blown upper switching MOSFETs create a direct short to ground, causing the DC power supply to trip or beep instantly.

* Boot Loop / Hang on Logo: Sagging core voltages under processing load cause the processor to reset repeatedly during Android boot sequence.

* Thermal Damage / High Current Drain: High thermal stress during prolonged gaming sessions can degrade the internal silicon or solder joints beneath the BGA package, causing high standby battery leakage or sudden power cutoffs.

* Suffix Specificity: While sharing a common pin layout with MT6359VKP and MT6359P, matching the exact "VPP" suffix ensures correct default startup register presets and eF