Datasheet Details
| Part number | FR9809 |
|---|---|
| Manufacturer | Fiti |
| File Size | 1.16 MB |
| Description | 500KHz Synchronous PWM-Buck DC/DC Converter |
| Datasheet |
 FR9809 Datasheet
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General Description
FR9809 is a high-efficiency synchronous step-down DC/DC converter that employs a special process technique to obtain very low RDS(ON) for the internal metal
oxide
semiconductor field-effect transistor (MOSFET).
Key Features
- High Efficiency up to 90%.
- Internal MOSFET RDS(ON): 110mΩ 20mΩ.
- Internal Compensation.
- Input Operation Voltage Range: 4.75V to 21V.
- 5A Continuous Output Current.
- Output Voltage down to 0.805V.
- 500KHz Oscillation Frequency.
- Sync to External Clock from 300KHz to 800KHz.
- Cycle-by-Cycle Current Limit.
- Under Voltage Lockout.
- Over-Temperature Protection with Auto Recovery.