MT6358W IC
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Product Details
Product Details:
- Part Number: MT6358W (Related Variant: MT6358VW)
- Manufacturer: MediaTek Inc. (MTK)
- Companion Application Processors (SoCs):
* MediaTek Helio P60 / P70 (MT6771)
* MediaTek Helio G70 / G80 / G85 / G88 (MT6768 / MT6769)
* MediaTek Helio G90 / G90T / G95 (MT6785)
- Function: Primary System Power Management Integrated Circuit (Master PMIC)
- Subsystems & Architecture:
* Multi-Phase Synchronous Step-Down DC-DC Buck Converters:
- VCORE (CPU Core Power Rails)
- VPROC (Application Processor Digital Logic)
- VGPU (Mali Graphics Processing Unit Supply)
- VDRAM / VDDQ (LPDDR4 / LPDDR4X Memory Voltage Rails)
- VS1 / VS2 / VPA (System and RF Power Amplifier Buck Lines)
* Comprehensive Low-Dropout Regulators (LDOs):
- Over 25 dedicated LDO channels for eMMC/UFS storage, image sensors (AVDD, DVDD, DOVDD), audio, and analog baseband
* Hardware System Logic:
- Central Power-On Sequencing State Machine
- Watchdog Timer and Thermal Protection / Shutdown Controller
- 32.768 kHz RTC Sleep Oscillator Driver
- SPMI / I2C Bus Interfaces for real-time voltage scaling with the processor
- Package Type: TFBGA-209 / WLCSP Ball Grid Array
- Stencil Compatibility: Amaoe MT3 / Amaoe SAM10 (Universal MediaTek PMIC BGA Stencil 0.12mm)
- Recommended Solder Paste: 183°C Leaded Solder Paste (Mechanic / Relife)
Usage:
- Primary Power Management: Serves as the master regulator converting battery and system power into all regulated low-voltage rails required by modern 4G smartphones.
- Compatible Smartphone Brands & Popular Models:
* Samsung: Galaxy A22 4G (SM-A225F), Galaxy A31 (SM-A315F), Galaxy A32 4G (SM-A325F), Galaxy A13 (SM-A137F), Galaxy A14 4G (SM-A145F), Galaxy M22 (SM-M225F), Galaxy M32 (SM-M325F)
* Xiaomi / Redmi: Redmi Note 8 Pro (MT6785), Redmi 9, Redmi 9 Prime, Redmi 10X 4G, Redmi Note 9 (Merlin)
* Realme: Realme 6, Realme 6i, Realme C3, Realme Narzo 10, Realme 7, Realme 8
* Oppo: Oppo A8, Oppo A9 (2020), Oppo A31, Oppo A53s, Oppo Reno 2F, Oppo Reno 3
* Vivo: Vivo Y19, Vivo Y20G, Vivo Y30, Vivo Y33s, Vivo S1 (1907)
* Infinix & Tecno: Infinix Note 7, Note 8, Note 10, Hot 10, Hot 11, Zero 8; Tecno Camon 16, Camon 17, Pova, Spark 7 Pro
- Motherboard Diagnostics & Fault Signatures:
* Full Short Circuit / Primary Line Short (VBAT / VSYS):
- Thermal camera shows hot spot directly over MT6358W immediately upon connecting the DC power supply, caused by internal buck FET breakdown.
* Dead Device with Low Fixed Current Consumption:
- Pressing the power key causes the current on the DC supply to rise to 0.05A - 0.08A or freeze at ~0.12A without booting, indicating missing secondary LDO rails or an unpowered reset line.
* Bootloop / Freezing on Startup Logo:
- Device restarts repeatedly at the vendor boot logo due to unstable VCORE or GPU supply collapse under high CPU load.
* MediaTek USB Port / Preloader Handshake Only:
- Device connects to PC exclusively in MTK USB Port (COM Port) mode without display or backlight, caused by failure to power DRAM or internal logic blocks.
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