PM 660 Mobile Phone IC
High-Performance IC for Mobile Devices
The PM 660 Mobile Phone IC is designed to boost your smartphone’s efficiency. Its advanced technology ensures seamless integration with your mobile device, enhancing both performance and power management. PM 660 Mobile Phone IC
Reliable and Energy-Efficient
Engineered for reliability, the PM 660 IC effectively manages power distribution. This ensures your device operates smoothly while extending battery life, making it an essential component for modern mobile devices.
Perfect Fit for Versatile Applications
Whether it’s for repairs, upgrades, or new manufacturing, the PM 660 IC fits seamlessly across a wide range of mobile phone models. Its optimized design makes it a versatile and dependable choice for various electronic applications.
The PM660 is a highly integrated Power Management Integrated Circuit (PMIC) developed by Qualcomm, specifically designed to support the Snapdragon 600-series chipsets (such as the SD636 and SD660).1 It is a critical component in mid-range smartphones, responsible for voltage regulation, battery charging, and power distribution across various hardware components like the processor, memory, and camera.2
Below is the full technical breakdown of the PM660 IC in a structured format.
PM660 IC Technical Specifications
| Feature | Specification Details |
| Manufacturer | Qualcomm |
| Common Model Numbers | PM660-001, PM660-002, PM660A, PM660L |
| Application | Power Management for Smartphones and Tablets |
| Input Voltage Range | $3.0\text{V}$ to $5.5\text{V}$ (Typical Li-ion battery range) |
| Output Voltage Range | $0.8\text{V}$ to $3.3\text{V}$ (Adjustable via multi-rail configuration) |
| Efficiency | Up to $95\%$ depending on load conditions |
| Topology | Multi-channel Synchronous Buck / LDO Regulators |
| Power Domains | Supports up to 12-15 independent voltage domains |
| Charging Support | Integrated Battery Charging (Supports QC 3.0/4+ in specific variants) |
| Interface | SPMI (System Power Management Interface) |
| Package Type | WLCSP (Wafer Level Chip Scale Package) |
| Operating Temp | $-40\text{°C}$ to $+85\text{°C}$ |
| Protection Systems | OVP (Over-Voltage), UVLO (Under-Voltage), Thermal Shutdown |
Variants and Compatibility
The PM660 series is often paired with the PM660L. While the standard PM660 handles the core processor and system power, the “L” (Low-power/Lighting) variant typically manages secondary functions like display backlighting, flash LEDs, and charging logic. PM 660 Mobile Phone IC
| Variant | Typical Device Compatibility | Key Focus |
| PM660 (Standard) | Xiaomi Redmi Note 5/6, Mi Max 3, Nokia 7 Plus | CPU/GPU Core Power & RAM |
| PM660L | Redmi Note 7, Vivo X20, Oppo R11 | Charging, Backlight, and Audio Power |
| PM660-002 | Specialized for lower-tier Snapdragon variants | Simplified rail configuration |
Core Functions and Features
1. Advanced Power Sequencing
The IC manages the complex “startup” sequence of a smartphone.3 It ensures that the CPU receives power before the RAM, and the RAM before the display, preventing data corruption or hardware shorts during boot-up.
2. Efficiency and Battery Life
Using Pulse-Frequency Modulation (PFM) for light loads and Pulse-Width Modulation (PWM) for heavy loads, the PM660 optimizes energy consumption.4 This allows the phone to stay in a “deep sleep” state with minimal battery drain while remaining ready to wake up instantly. PM 660 Mobile Phone IC
3. Integrated Protections
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Thermal Throttling: If the phone gets too hot during gaming or fast charging, the PM660 communicates with the SoC to reduce clock speeds and current flow.
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Short Circuit Protection: It can instantly cut power to specific rails if it detects a hardware failure, preventing the motherboard from catching fire. PM 660 Mobile Phone IC
4. Precision Voltage Regulation
The PM660 provides extremely stable voltages to sensitive components.5 For example, the VDD_CORE rail must maintain a precise voltage (often around $1.1\text{V}$) with very low ripple to ensure the processor remains stable at high frequencies. PM 660 Mobile Phone IC
Usage in Repair and Maintenance
In the mobile repair industry, the PM660 is a frequent candidate for replacement when a phone is “dead” or stuck in a boot loop. Because it is a BGA (Ball Grid Array) component, it requires professional micro-soldering tools and a reballing stencil for installation.
Note: Always verify the specific suffix (e.g., -001 vs -002) before replacement. Using a PM660L in place of a standard PM660 can lead to a permanent “no power” state due to differences in pinout and voltage mapping.
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