MPB02 IC
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Product Details
Product Details:
- Part Number: S2MPB02 / S2MPB02X01 (Top Marking: MPB02)
- Samsung SEC Part Code: 1203-008472 (IC-Power Supervisor / Camera PMIC)
- Schematic Designator: U7001 / U7008 (Sub-PMIC)
- Manufacturer: Samsung Semiconductor
- Function: Secondary Power Management Integrated Circuit (Sub-PMIC) / Camera Power Supply & Voltage Supervisor
- Regulators Architecture:
* Dedicated low-noise Low-Dropout Regulators (LDOs) engineered for high-precision Camera Image Sensors (CIS Core, Analog, and I/O rails: 1.2V, 1.8V, 2.8V)
* Actuator Power Driver for Optical Image Stabilization (OIS) and Auto-Focus (AF) voice coil motors
* Auxiliary power supervisor logic monitoring power rail integrity for peripheral sub-circuits
- Package Type: Fine-Pitch WLCSP (Wafer Level Chip Scale Package) / BGA
- Mounting Type: Surface Mount Technology (SMD BGA Soldering / Reballing)
Usage:
- Precision Peripheral Voltage Regulation: Operates alongside Samsung Exynos main PMICs (such as S2MPS15 / S2MPS18) to deliver clean, ripple-free power rails to primary/secondary camera sensors and hardware sensors without burdening the main power hub.
- Target Devices & Compatible Models:
* Samsung Galaxy S-Series:
- Galaxy S6 / S6 Edge / S6 Edge+ (SM-G920F, SM-G925F, SM-G928F)
- Galaxy S7 / S7 Edge (SM-G930F, SM-G935F)
- Galaxy S8 / S8+ (SM-G950F, SM-G955F)
* Samsung Galaxy Note-Series:
- Galaxy Note 5 (SM-N920F)
- Galaxy Note 8 (SM-N950F, SM-N9500)
- Galaxy Note 9 (SM-N960F, SM-N9600)
- Common Fault Symptoms & Motherboard Diagnostics:
* "Warning: Camera Failed" / Black Screen: The most characteristic fault for this IC. Opening the camera app results in an immediate crash, black viewfinder, or "Camera Failed" error due to missing 1.2V/2.8V power rails.
* OIS / Auto-Focus Jitter or Malfunction: Optical image stabilization buzzes, shakes violently, or fails to focus due to unstable actuator supply from MPB02.
* Dead Phone (VPH / VSYS Rail Short): Internal short circuit across the input supply line pulls down the primary power rail, preventing the phone from booting or causing the DC power supply to trip.
* Localized Overheating: Severe heat generation beneath the camera shield area on the motherboard, occurring immediately upon battery connection or when launching multimedia applications.
* Standby Battery Drain: Leaky internal LDO output channels cause steady current drain (0.10A–0.25A) even when the handset is sleeping.
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