SY81012 Description
The SY81012 develops a high efficiency synchronous step-down DC/DC regulator capable of delivering 12A current. The device integrates highside power switch and low-side synchronous rectifier with very low RDS(ON) to minimize the conduction loss. It provides accurate regulation for a variety of loads with an accurate ±1% voltage reference (VREF) over TJ= -40°C to 125°C.
SY81012 Key Features
- Wide Input Voltage Range
- 3.6V to 16V if VCC is Supplied by Internal LDO
- 2.7V to 16V if VCC is Supplied by External 3.3V DC Source
- Low RDS(ON) for Internal Switches (Top/Bottom): 12.6mΩ/4.3mΩ
- 0.6V ±1% Voltage Reference Over Temperature Range (TJ = -40°C to 125°C)
- Adopt Constant-on-time Architecture and Frequency Lock Loop
- Instant PWM Architecture to Achieve Fast
- 600kHz, 800kHz and 1000kHz Switching
- PFM/FCCM Light Load Operation Mode
- Programmable Bottom Valley Limit by ILMT pin
SY81012 Applications
- 3.6V to 16V if VCC is Supplied by Internal LDO
- 2.7V to 16V if VCC is Supplied by External 3.3V DC Source