| FAN5091 Description | | Two Phase Interleaved Synchronous Buck Converter | | FAN5091 Vendor | | Fairchild Semiconductor | | FAN5091 Categories | | | FAN5091 Features | - Programmable output from 1.10V to 1.85V in 25mV steps using an integrated 5-bit DAC
- Two interleaved synchronous slices for maximum performance
- 100nsec response time
- Built-in current sharing between slices
- Remote sense
- Programmable Active Droop ™ (Voltage Positioning)
- Programmable frequency from 200KHz to 2MHz
- Adaptive delay gate switching
- Integrated high-current gate drivers
- Integrated Power Good, OV, UV, Enable/Soft Start functions
- Drives N-channel MOSFETs
- Operation optimized for both 5V and 12V operation
- High efficiency mode (E*) at light load
- Overcurrent protection using MOSFET sensing
- 24 pin TSSOP package
| | FAN5091 Description | The FAN5091 is a synchronous multi-slice DC-DC controller IC which provides a highly accurate, programmable output voltage for all high-performance processors. Two interleaved synchronous buck regulator slices with built-in current shar-ing operate 180° out of phase to provide the fast transient response needed to satisfy high current applications while minimizing external components. The FAN5091 features remote voltage sensing, and Programmable Active Droop ™ for 100nsec converter transient response with minimum out-put capacitance. It has integrated high-current gate drivers, with adaptive delay gate switching, eliminating the need for external drive devices. The FAN5091 uses a 5-bit D/A con-verter to program the output voltage from 1.10V to 1.85V in 25mV steps with an accuracy of 1%. The FAN5091 uses a high level of integration to deliver load currents in excess of 50A from a 5V source with minimal external circuitry. The FAN5091 also offers integrated functions including Power Good, Output Enable/Soft Start, under-volt-age lockout, over-voltage protection, and adjustable current limiting with independent current sense on each slice. It is available in a 24 pin TSSOP package. | | FAN5091 Datasheet and Application Notes | | | Parameter | Value | | Product status | Full Production | | Pricing* | $1.26 | | Package type | TSSOP | | Leads | 24 | | Packing method | RAIL | | Products related to FAN5091 | | FAN5091MTC FAN5091MTCX |
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