概览
描述
The RTKA212831DR0000BU provides a simple platform to demonstrate the performances of the RAA212831. The RAA212831 is an integrated 72V input voltage, 0.5A output load one synchronous buck regulator with fixed switching frequency from 350kHz and two 100mA, and 50mA output load linear regulators LDOs. The buck can support a wide input voltage range of 14V to 72V and adjusted output voltage from 1.25V to VIN×Dmax. The LDO_3V3 can support a wide input voltage range of 6V to 12V, and the output voltage is fixed at 3.3V. The LDO_5 can support a wide input voltage range of 6V to 12V, and the output voltage is fixed at 5V. It is designed for small size and high integration electric-bike control board power management. Integrated buck and LDOs minimize the system components.
特性
- Buck Converter:
- 4.5V to 72V input voltage
- Adjustable output voltage from 1.25V to VIN×Dmax
- 500mA output load capability
- 0.6Ω high-side MOSEFT rDS(ON)
- Fixed switching frequency 350kHz operation
- High side OCP, UVP, UVLO, OTP fault protection
- 5V LDO Regulator:
- 6V to 12V input voltage
- Fixed output voltage 5V
- 100mA output load capability
- Current limit foldback function
- 3.3V LDO Regulator:
- 6V to 12V input voltage
- Fixed output voltage 3.3V
- 50mA output load capability
- Current limit foldback function
