PM 660A-002-01 Original Mobile Phone IC

Precision and Reliability in Mobile Technology

The PM 660A-002-01 Original Mobile Phone IC is meticulously designed to ensure your device operates at peak performance. Built with superior quality and cutting-edge technology, this IC offers unmatched reliability for your mobile devices. PM 660A-002-01 Original Mobile Phone IC

Optimize Device Performance

Engineered to deliver exceptional stability and efficiency, the PM 660A-002-01 is the ideal choice for mobile manufacturers and repair professionals. Its advanced architecture ensures enhanced power management, improving the overall functionality of your phone.

Trusted Original Component

When it comes to maintaining the quality of your device, using original components like the PM 660A-002-01 is crucial. This IC is fully compatible and precisely crafted to seamlessly integrate with a variety of phone models, providing long-lasting performance and durability.

The PM660A-002-01 is a high-performance Power Management Integrated Circuit (PMIC) developed by Qualcomm. It is a cornerstone component in mid-range mobile devices, specifically designed to work alongside the Snapdragon 660 and Snapdragon 636 chipsets.

This IC is responsible for managing the complex power requirements of a smartphone, including voltage regulation for the CPU/GPU, battery charging logic, and power sequencing for various peripherals.

Technical Specifications Table

Feature	Specification Details
Manufacturer	Qualcomm
Model Number	PM660A-002-01
Application	Power Management (PMIC)
Package Type	BGA (Ball Grid Array)
Pin/Ball Count	126 Pins
Operating Voltage	1.0V to 6V (Input Range)
Efficiency	>90% for typical Buck converters
Supported Platforms	Snapdragon 632, 636, 660
Charging Support	Quick Charge (QC) 4.0 / 4+ and PD 3.0
Key Functions	DC-DC Step-down, LDO Regulators, Battery Management
Core Voltage (VDD)	1.2V ±0.05V (Stable output for SoC)
Thermal Threshold	~85°C (Auto-shutdown protection)

Functional Overview

The PM660A-002-01 serves as the “heart” of the device’s electrical system. Unlike standard linear regulators, it uses multiple Buck Converters (Step-down) and LDOs (Low Dropout Regulators) to provide precise, stable voltages to different sections of the motherboard. PM 660A-002-01 Original Mobile Phone IC

1. Power Regulation & Rail Management

The IC manages up to 12 voltage domains. It converts the battery’s fluctuating voltage (3.7V – 4.2V) into the steady low voltages required by sensitive silicon. For instance, the VDD_CORE rail must stay strictly at 1.2V to prevent the processor from crashing or overheating. PM 660A-002-01 Original Mobile Phone IC

2. Battery & Charging Logic

The “A” variant (PM660A) is often paired with a secondary PMIC (like the PM660L) to handle specialized tasks. The PM660A focuses on:

Fuel Gauging: Accurately reporting battery percentage. PM 660A-002-01 Original Mobile Phone IC
Safety Protections: Over-voltage (OVP) and Thermal Shutdown to prevent battery swelling or fire. PM 660A-002-01 Original Mobile Phone IC
Fast Charging: It contains the logic to negotiate with “Quick Charge” compatible adapters. PM 660A-002-01 Original Mobile Phone IC

3. Thermal Management

Mobile devices generate significant heat under load (gaming or 4K recording). The PM660A features internal temperature sensors. If the IC detects temperatures exceeding its safety threshold (typically 85°C), it will trigger a thermal throttle, reducing power output to the CPU to cool the device down. PM 660A-002-01 Original Mobile Phone IC

Device Compatibility List

This specific revision (002-01) is a high-efficiency version of the original 001 series. It is widely used in “Global” versions of popular handsets:

Xiaomi: Redmi Note 5, Redmi Note 5 Pro, Redmi Note 6 Pro, Mi Note 3, Mi A2, Mi Max 3.
Oppo: R11, R11 Plus.
Vivo: X20, X20 Plus, X21.
Samsung: Certain mid-range A-series and J-series models utilizing Snapdragon chipsets.

Repair & Technical Insights

For technicians, the PM660A-002-01 is a common point of failure in phones that are “dead” or stuck in a boot loop.

Failure Symptoms: No power-on, charging current limited to 0.1A (stuck), or the device heating up instantly when the battery is connected.
Interchangeability: While the PM660 and PM660A belong to the same family, they are not always interchangeable. The “A” variant often has a different pin configuration for certain LDO rails. Always match the full part number (002-01) to ensure compatibility.
Installation: Being a BGA chip, it requires professional SMD Rework tools. Technicians must use a specific reballing stencil (0.12mm thickness) and high-quality flux to ensure all 126 solder balls make a perfect connection with the motherboard.