Overview
The AOZ1282CI-1 is a high-efficiency, simple-to-use 600mA buck regulator produced by Alpha & Omega Semiconductor Inc. This regulator is part of the EZBuck™ family and is designed to be flexible and optimized for a variety of applications. It operates from a 4.5V to 36V input voltage range and provides up to 600mA of continuous output current. The output voltage is adjustable down to 0.8V, making it versatile for different power requirements.
Key Specifications
| Specification | Value |
|---|---|
| Input Voltage Range | 4.5V to 36V |
| Output Current | Up to 600mA |
| Output Voltage Range | Adjustable down to 0.8V |
| Switching Frequency | 1MHz |
| Internal NMOS Resistance | 420mΩ |
| Efficiency | Up to 95% |
| Package | SOT23-6L |
| Operating Temperature Range | -40°C to +85°C |
| Max Junction Temperature (Tj) | 150°C |
| Soft Start Time | Typically 600µs |
Key Features
- High efficiency up to 95%
- Internal compensation
- Fixed 1MHz PWM operation
- Internal soft start to limit in-rush current
- Output voltage adjustable down to 0.8V
- Cycle-by-cycle current limit and short-circuit protection
- Thermal shutdown
- Enable control with active high EN pin
- Under voltage lock-out (UVLO) and output over-voltage protection
Applications
- Telecom/Networking/Datacom equipment
- Industrial/power meters
- Point of Load (POL) regulators
- Consumer electronics
- Automotive systems (within specified temperature range)
Q & A
- What is the input voltage range of the AOZ1282CI-1? The input voltage range is from 4.5V to 36V.
- What is the maximum output current of the AOZ1282CI-1? The maximum output current is up to 600mA.
- How is the output voltage adjusted? The output voltage is adjustable down to 0.8V using an external voltage divider at the FB pin.
- What is the switching frequency of the AOZ1282CI-1? The switching frequency is fixed at 1MHz.
- Does the AOZ1282CI-1 have built-in protection features? Yes, it includes cycle-by-cycle current limit, short-circuit protection, and thermal shutdown.
- What is the package type of the AOZ1282CI-1? The package type is SOT23-6L.
- How does the soft start feature work? The soft start feature limits in-rush current and ensures the output voltage ramps up smoothly to the regulation voltage in typically 600µs.
- What is the operating temperature range of the AOZ1282CI-1? The operating temperature range is from -40°C to +85°C.
- Is the AOZ1282CI-1 RoHS compliant? Yes, it is RoHS compliant.
- How is the enable function controlled? The enable function is controlled by the active high EN pin, which must be above 1.2V to enable the regulator.
