AOZ2261NQI-11
AOZ2261NQI-11 is 28V/8A Synchronous Regulator manufactured by Alpha & Omega Semiconductors.
Description
The AOZ2261NQI-11 is a high-efficiency, easy-to-use DC/DC synchronous buck regulator that operates up to 28V. The device is capable of supplying 8A of continuous output current with an output voltage adjustable down to 0.6V ±1%.
A proprietary constant on-time PWM control with input feed-forward results in ultra-fast transient response while maintaining relatively constant switching frequency over the entire input voltage range. The on time can be externally programmed up to 2.6µs.
The device features multiple protection functions such as VCC under-voltage lockout, cycle-by-cycle current limit, output over-voltage protection, short-circuit protection, and thermal shutdown.
The AOZ2261NQI-11 is available in a 4mm×4mm QFN23L package and is rated over a -40°C to +85°C ambient temperature range.
Features
- Wide input voltage range
- 2.7V to 28V
- 8A continuous output current
- Output voltage adjustable down to 0.6V (±1.0%)
- Low RDS(ON) internal NFETs
- 28m high-side
- 11m low-side
- Constant On-Time with input feed-forward
- Programmable on-time up to 2.6µs
- Selectable PFM light-load operation
- Ceramic capacitor stable
- Adjustable soft start
- Ripple reduction
- Discharge Function
- Power Good output
- Integrated bootstrap diode
- Adjustable cycle-by-cycle current limit
- Short-circuit protection
- Over-voltage protection
- Thermal shutdown
- Thermally enhanced 4mm x 4mm QFN-23L package
Applications
- Portable puters
- pact desktop PCs
- Servers
- Graphics cards
- Set-top boxes
- LCD TVs
- Cable modems
- Point-of-load DC/DC converters
- Tele/Networking/Data equipment
Rev. 5.0 November 2024
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