Overview
The FAN48610UC50X is a low-power boost regulator designed by onsemi to provide a voltage-regulated output from a standard single-cell Li-Ion battery or advanced battery chemistries. This device is part of the TINYBOOST family and is optimized for battery-powered applications. It maintains output voltage regulation even when the input voltage is below the minimum system battery voltage, ensuring a stable output for loads up to 1 A. The FAN48610UC50X features internal synchronous rectification, soft-start with true load disconnect, and short-circuit protection, making it suitable for a variety of portable and wearable devices.
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| Input Voltage Range (VIN) | 2.5 | 4.8 | V | |
| Output Voltage (VOUT) | 5.0 | V | ||
| Maximum Output Current (IOUT) | 1000 | mA | ||
| Ambient Temperature Range (TA) | -40 | 85 | °C | |
| Junction Temperature Range (TJ) | -40 | 125 | °C | |
| Switching Frequency (fSW) | 2.0 | 2.5 | 3.0 | MHz |
| Efficiency | Up to 94% | % | ||
| Package Type | WLCSP, 0.4 mm Pitch | |||
| Package Size | 1.215 mm × 1.215 mm |
Key Features
- Internal synchronous rectification for high efficiency
- Soft-start with true load disconnect to prevent inrush current
- Short-circuit protection for enhanced reliability
- Low supply current and built-in power transistors
- Operating frequency of approximately 2.5 MHz in Continuous Conduction Mode (CCM)
- Pass-Through Mode activation when VIN is above the boost regulator’s set point
- Over-temperature protection (OTP) with automatic restart
- Compact 9-bump WLCSP package with a total application board solution size of less than 11 mm^2
Applications
- Class-D audio amplifiers and USB OTG supplies
- Boost regulators for low-voltage Li-Ion batteries
- Smartphones, tablets, and portable devices
- Wearable devices
Q & A
- What is the input voltage range of the FAN48610UC50X?
The input voltage range is from 2.5 V to 4.8 V.
- What is the maximum output current of the FAN48610UC50X?
The maximum output current is 1000 mA.
- What is the switching frequency of the FAN48610UC50X?
The switching frequency is approximately 2.5 MHz.
- Does the FAN48610UC50X have over-temperature protection?
Yes, it has over-temperature protection with automatic restart.
- What is the package type and size of the FAN48610UC50X?
The package type is WLCSP with a 0.4 mm pitch, and the size is 1.215 mm × 1.215 mm.
- What are the key features of the FAN48610UC50X?
Key features include internal synchronous rectification, soft-start, short-circuit protection, and low supply current.
- What are the typical applications of the FAN48610UC50X?
Typical applications include Class-D audio amplifiers, USB OTG supplies, smartphones, tablets, portable devices, and wearables.
- How efficient is the FAN48610UC50X?
The FAN48610UC50X can achieve up to 94% efficiency.
- What is the minimum input voltage required for a 1 A load?
The minimum input voltage required for a 1 A load is 2.5 V.
- Does the FAN48610UC50X have a Pass-Through Mode?
Yes, it has a Pass-Through Mode that activates when VIN is above the boost regulator’s set point.
