MT6359VKP IC
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Product Details
Product Details:
- Part Number: MT6359VKP
- Sibling Variants: MT6359P, MT6359VNP, MT6359VPP
- Manufacturer: MediaTek Inc. (MTK)
- Function: Primary System Power Management Integrated Circuit (Main PMIC)
- Regulators Architecture:
* Multi-Phase Synchronous Step-Down DC/DC Buck Converters (providing dedicated high-current rails to CPU VCORE, VPROC, GPU, VDRAM, and Modem)
* Extensive Array of Precision Low-Dropout Regulators (LDOs) for Camera Sensors, Display, Audio Codec, Storage (eMMC/UFS), and Baseband
- System Integration:
* Central Power-Up & Reset Sequencing Controller (PMIC_RESET_B)
* Real-Time Clock (RTC) 32.768 kHz oscillator and alarm logic
* Battery Fuel Gauge & Real-Time Battery Voltage/Current Monitoring
* Hardware Thermal Monitoring & Automatic Thermal Shutdown
- Package Type: Fine-Pitch BGA / WLCSP
- Mounting Type: Surface Mount Technology (SMD BGA Soldering / Reballing)
Usage:
- Central Motherboard Power Management: Converts main battery/system bus voltage into low, noise-free, and dynamically scalable core rails for MediaTek Helio G90T, P90, and Dimensity mobile architectures.
- Target Devices & Compatible Models:
* Xiaomi / Redmi: Redmi Note 8 Pro (MediaTek Helio G90T platform), Redmi Note 8 (MTK variants)
* Oppo / Realme: Oppo Reno 2, Oppo Reno Z, Realme Narzo 20 Pro, Realme Narzo 30
* Infinix / Tecno: Infinix Zero 8, Zero 8i, Tecno Camon 16 Premier
* Vivo: Vivo NEX 3 (MTK version), Vivo S-series
- Common Fault Symptoms & Motherboard Diagnostics:
* Dead Phone (No Power / Low Pulse): Phone does not boot or vibrate; on DC bench power supply, pressing the power button shows a small pulse (0.03A–0.08A) and immediately falls back to zero due to missing CPU core voltages or an incomplete power sequence.
* Gaming Overheating & Sudden Shutdown: Extreme heat dissipation near the MT6359VKP shield during gaming (e.g. PUBG) leading to thermal shutdown or internal solder ball fatigue.
* Direct VPH_PWR / VBAT Short Circuit: Internal breakdown of the high-side switching FETs creates a short to ground, causing the DC power supply to trip or beep immediately.
* Repeated Flashing Failures / Boot Loop: Handset is stuck in a boot loop or disconnects during software flashing because the PMIC cannot supply stable VCORE/VDRAM voltage during intense flashing operations.
* High Standby Leakage: Battery drains rapidly even when the phone is idle or screen is turned off, caused by internal leakage across one of the secondary LDO rails.
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