AAT1277 Description
The device consists of two current mode boost regulators, a current mode buck regulator or a low dropout linear regulator alternatively, a negative charge pump linear regulator, a gate pulse modulation, a reset function, a unit-gain V buffer and two operational amplifiers. The AAT1277 also includes I2C interface for setting various parameters such as each regulator’s output voltage, switching frequency, soft start...
AAT1277 Key Features
- 2.5V to 5.5V Input Supply Voltage Range
- Fully I2C Interface Control
- Current Mode Boost Regulator for VAVDD
- 3.6V to 12.7V Output Voltage Range
- Current Mode Boost Regulator for VGH
- 10V to 37V Output Voltage Range
- Temperature pensation (T/C)
- Alternative Buck Regulator or Low Dropout Linear Regulator for V25
- 1.5V to 3.0V Output Voltage Range
- Negative Charge Pump Linear Regulator for VGL