| FAN4855MUX Description |
| Adjustable, Low-Current, 2-Cell Boost Regulator with Shutdown and Low Battery Detect |
| FAN4855MUX Vendor |
| Fairchild Semiconductor |
| FAN4855MUX Features |
- Low power PFM boost regulator
- Input voltage range is from 1.6V to 4.5V
- Output voltage range is from 3V to 5V
- 500mA maximum load current capability
- 95% efficient power conversion
- 2-3 cell and single cell Li-Ion systems
- Variable on-time Pulse Frequency Modulation (PFM)
- Internal synchronous rectifier (no need for external diode)
- Low-battery detection
- Logic controlled shutdown with true-load disconnect
- Low (80µA) quiescent current
- MSOP-8 and TSSOP-8 Packages
|
| FAN4855MUX Description |
The FAN4855 is a low power boost regulator designed for low voltage DC to DC conversion in 2-cell battery powered systems such as digital cameras, cell phones and PDAs. The converter starts-up at 1.3V and operates after the start at an input voltage as low as 1V. Output voltage can be adjusted by external resistors from 3.3V to 5V with a maximum load current of 0.5A.
Quiescent current in Shut Down Mode is less than 10µA, which maximizes the battery live time. The ON time changes with the input voltage to maintain the ripple current constant and to provide the highest efficiency over a wide load range - while maintaining low peak currents in the boost inductor. The combination of built-in power transistors, synchronous rectification, and low supply current, make FAN4855 ideal for portable applications.
The FAN4855 is available in 8 lead MSOP and TSSOP packages. |
| FAN4855MUX Datasheet and Application Notes |
|
| Parameter | Value |
| Product status | Full Production |
| Pricing* | $0.84 |
| Package type | TSSOP |
| Leads | 8 |
| Packing method | RAIL |
| Product status | Preliminary |
| Pricing* | $0.84 |
| Package type | MSOP |
| Leads | 8 |
| Packing method | TAPE REEL |
| Products related to FAN4855MUX |
| FAN4855 FAN4855MTC FAN4855MTCX |