TPS 63750 AOP Mobile Phone IC
Power Your Devices with Efficiency
The TPS 63750 AOP Mobile Phone IC is designed to deliver optimal performance and efficiency for your mobile phone applications. Its compact, state-of-the-art design ensures seamless power conversion, making your device run smoother and last longer. TPS 63750 AOP Mobile Phone IC
Compact Design for Maximum Flexibility
This IC stands out with its small form factor, perfect for modern slim mobile designs. It integrates essential features that minimize space without compromising performance, making it ideal for cutting-edge devices. TPS 63750 AOP Mobile Phone IC
Reliable and High-Performance
Built with advanced technology, the TPS 63750 AOP ensures reliability and consistent operation. Whether for personal or professional use, trust this Mobile Phone IC to meet your demands for high power efficiency and great functionality. TPS 63750 AOP Mobile Phone IC
The TPS63750 AOP is a specialized Integrated Circuit (IC) developed by Texas Instruments, predominantly utilized in high-end mobile phone architectures. It is a highly integrated Power Management IC (PMIC), specifically designed to function as an inverting DC/DC converter. Its primary role in modern smartphones—particularly Samsung and other Android flagships—is to provide the precise negative voltage rails required for OLED displays and sensitive analog sensor biasing.
Below is the comprehensive technical breakdown and specification guide for the TPS63750 AOP. TPS 63750 AOP Mobile Phone IC
1. Technical Overview and Core Functionality
The TPS63750 AOP belongs to the high-efficiency switching regulator family. In mobile devices, where space is at a premium, this IC is valued for its “All-On-Package” (AOP) or similar compact footprints that minimize the need for bulky external inductors and capacitors. TPS 63750 AOP Mobile Phone IC
It operates using a Fixed-Frequency Pulse Width Modulation (PWM) topology. This ensures that the electromagnetic interference (EMI) is predictable, which is crucial in mobile phones to prevent interference with cellular, Wi-Fi, or Bluetooth signals. TPS 63750 AOP Mobile Phone IC
2. Full Specification Table
The following table details the electrical, thermal, and physical parameters of the TPS63750 AOP based on standard mobile industry operating conditions.
| Parameter | Specification Details | Typical Value / Unit |
| Manufacturer | Texas Instruments (TI) | – |
| IC Function | Inverting DC/DC Step-Down/Up | PMIC |
| Input Voltage Range ($V_{IN}$) | Low-voltage battery compatible | 2.7V to 5.5V |
| Output Voltage Range ($V_{OUT}$) | Adjustable Negative Rail | -2V to -15V |
| Max Output Current | Load-dependent | Up to 360mA |
| Switching Frequency | Fixed PWM Frequency | 1.4 MHz |
| Peak Efficiency | At optimal load/Vin ratio | ~84% |
| Quiescent Current | Shutdown mode | 1.5 $\mu$A |
| Current Limit | Internal Switch limit | 1000mA (1A) |
| Protection Features | Overvoltage, Thermal, Current | OVP, OTP, OCP |
| Output Overvoltage Protection | Trigger threshold | -19V |
| Package Type | Small Outline No-Lead | VSON / SON-10 |
| Dimensions | Ultra-compact for mobile | 3.0mm x 3.0mm |
| Operating Temperature | Extended Industrial | -40°C to 125°C |
3. Pin Configuration and Functions
Understanding the pinout is essential for troubleshooting “No Display” or “Touch Not Working” issues in mobile repair, as this IC often powers the display’s negative bias ($V_{EE}$).
| Pin Number | Name | Description |
| 1 | VIN | Input supply voltage (connected to Battery VCC). |
| 2 | EN | Enable pin. High = Active; Low = Shutdown. |
| 3 | FB | Feedback pin. Used to set the output voltage via resistor divider. |
| 4 | VREF | Internal reference voltage output for stability. |
| 5 | GND | Analog ground. |
| 6 | SW | Switching node; connects to the external inductor. |
| 7 | OUT | Negative voltage output terminal. |
| 8 | PS_GND | Power ground for high-current return paths. |
| 9 | COMP | Compensation pin for the internal error amplifier. |
| 10 | IN | Internal supply connection for logic. |
4. Key Features & Mobile Applications
A. OLED Display Biasing
Modern AMOLED screens require both a positive ($V_{DD}$) and a negative ($V_{SS}$ or $V_{EE}$) voltage to operate the organic light-emitting diodes. The TPS63750 AOP is specifically tasked with generating the stable negative rail (often around -5V) required to turn the pixels off completely, ensuring the “perfect blacks” OLEDs are known for.
6. Efficiency Performance
The efficiency of the TPS63750 is highly dependent on the “V-Gap” (the difference between $V_{IN}$ and $V_{OUT}$). TPS 63750 AOP Mobile Phone IC
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Optimal Performance: When converting $3.6V$ (Li-ion nominal) to $-5V$ (OLED bias), the IC reaches its peak efficiency of 82-84%.
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Battery Impact: Because of its low shutdown current ($1.5 \mu A$), it has a negligible impact on battery standby life when the screen is off. TPS 63750 AOP Mobile Phone IC
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