SC 2723G Original Mobile Phone IC
Enhance Your Device’s Precision
The SC 2723G Original Mobile Phone IC is designed to provide top-quality performance and ensure the reliability of your electronic devices. Crafted with precision and made from durable components, this IC is a must-have for professionals and enthusiasts alike. SC 2723G Original Mobile Phone IC
Reliable and Long-Lasting Solution
This IC delivers consistent results, helping to improve your phone’s efficiency and maintain optimal functionality. Every unit is rigorously tested for performance and durability, making it an excellent choice for repair projects or new builds. SC 2723G Original Mobile Phone IC
Compatibility and Ease-of-Use
The SC 2723G IC ensures compatibility with a wide range of mobile devices, making it versatile and convenient for various applications. Whether you’re working on repairs or just seeking a dependable replacement part, this component simplifies your task with its user-friendly integration and trusted quality. SC 2723G Original Mobile Phone IC
The SC2723G is a sophisticated Power Management Integrated Circuit (PMIC) developed by Unisoc (formerly Spreadtrum Communications). It is a foundational component in budget and mid-range Android smartphones, particularly those utilizing the Spreadtrum/Unisoc chipset architecture. SC 2723G Original Mobile Phone IC
The primary role of the SC2723G is to act as the “heart” of the phone’s power distribution system, converting raw battery voltage into the specific, stable voltages required by the processor, memory, display, and camera modules. SC 2723G Original Mobile Phone IC
Technical Specifications Table
| Feature / Parameter | Specification Details |
| Manufacturer | Unisoc (Spreadtrum) |
| Model Number | SC2723G |
| Function | Multi-channel Power Management Unit (PMU) |
| Package Type | BGA (Ball Grid Array) / QFN options |
| DC-DC Converters | 2 Built-in High-Efficiency Buck Converters |
| LDO Regulators | 4 to 6 Low Dropout (LDO) Regulators |
| Input Voltage Range | Typically 3.4V to 4.4V (Lithium-ion Battery) |
| Core Functions | Audio Codec, Battery Charging, RTC, Fuel Gauge |
| Communication Interface | SPI / I2C (for communication with the CPU) |
| Temperature Range | -20°C to +85°C (Operating) |
| Mounting Type | Surface Mount (SMD) |
Key Functional Blocks
The SC2723G is not just a voltage regulator; it is a highly integrated System-on-Chip (SoC) companion that handles several critical tasks:
1. Power Regulation (DCDC & LDO)
The IC contains multiple DC-DC Buck Converters that step down battery voltage with high efficiency (often >90%) to power the CPU cores and DDR memory. The LDO (Low Dropout) regulators provide “cleaner,” low-noise power to sensitive analog components like the camera sensor and radio frequency (RF) chips. SC 2723G Original Mobile Phone IC
2. Battery Management System (BMS)
It integrates a charging controller that manages the flow of current from the USB port to the battery. It includes:
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Fuel Gauge: Calculates the remaining battery percentage.
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Thermal Protection: Monitors battery temperature to prevent overheating during fast charging. SC 2723G Original Mobile Phone IC
3. Audio Codec
In many Spreadtrum-based designs, the SC2723G contains the Audio Codec. This block converts digital audio data from the processor into analog signals for the headphones and speakers, and vice-versa for the microphone.
4. Real-Time Clock (RTC)
The IC maintains the device’s time and date even when the phone is turned off, powered by a tiny internal backup or a small capacitor on the motherboard. SC 2723G Original Mobile Phone IC
Architecture and Design
The SC2723G uses a Ball Grid Array (BGA) package. This design is crucial for modern mobile phones because it allows for a very high density of connections in a tiny physical footprint. Because the “pins” are actually solder balls underneath the chip, it provides better thermal dissipation and reduces electromagnetic interference (EMI). SC 2723G Original Mobile Phone IC
Note for Technicians: When replacing this IC, “reballing” is usually required. The chip is sensitive to heat; excessive temperature during soldering (typically above 350°C for extended periods) can delaminate the internal silicon layers. SC 2723G Original Mobile Phone IC
Common Applications
The SC2723G is most commonly found in:
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Entry-level Smartphones: Brands like Itel, Tecno, Micromax, and Lava often use this PMIC in conjunction with Unisoc SC9832 or SC7731 processors.
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Feature Phones: High-end 4G feature phones (like the JioPhone series) occasionally utilize variants of this power management architecture.
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IoT Modules: Because of its low power consumption, it is used in industrial M2M (Machine to Machine) communication modules.
Troubleshooting and Repair
If a mobile device has a faulty SC2723G, you may encounter the following symptoms:
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Dead Phone: The device will not trigger the boot sequence.
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Short Circuit: The motherboard shows a “full short” when connected to a DC power supply.
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Charging Issues: The phone shows a charging icon but the percentage does not increase, or it fails to recognize the charger entirely.
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No Audio: Since the codec is integrated, a failure in this IC can result in total loss of sound in the earpiece or loud-speaker.
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