ABLIC 8581AA Step-Down Switching Regulator
ABLIC 8581AA Step-Down Switching Regulator is a 36V and 600mA synchronous regulator that is developed using the high withstand voltage CMOS process technologies. This regulator maintains high-accuracy FB pin voltage at ±1.5V. The 8581AA step-down regulator operates with PWM switching control under heavy load and automatically switches to PFM switching control under a light load. This regulator comes with a built-in synchronous circuit that achieves high efficiency easier as compared to the conventional step-down switching regulators. The 8581AA regulator incorporates a built-in overcurrent protection circuit and a thermal shutdown circuit that protects the IC from excessive load current and heat damage. Typical applications include constant-voltage power supplies for industrial equipment and home electric appliances.
Features
- Developed using high withstand voltage CMOS process technologies
- Contributes to the miniaturization of electronic equipment
- PWM/PFM switching control
- Achieves high-efficiency operation in accordance with the device status
- Built-in overcurrent protection circuit and thermal shutdown circuit
Specifications
- 600mA output current
- 2.5V to 12V output voltage range
- 4V to 36V input voltage range
- ±1.5% FB pin voltage accuracy
- 91% efficiency
- 2.2MHz typical oscillation frequency
- -40°C to 85°C operating temperature range
Block Diagram
Typical Application Circuit Diagram
Performance Graph
Veröffentlichungsdatum: 2020-07-16
| Aktualisiert: 2022-03-11