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Renesas RAA212832 | Demoboard RTKA212832DR0000BU
72V 0.5A Step-Down Regulator with Fixed 6V or 12V Output, with Two 5V and 3.3V LDO Outputs and Standby Feature
Overview
| Topology | Buck Converter |
| Input voltage | 4.5-72 V |
| Output 1 | 12 V / 0.5 A |
| IC revision | 1.00 |
Description
The RTKA212832DR0000BU provides a simpleplatform to demonstrate the performances of the RAA212832. The RAA212832 is an integrated 72V input voltage, 0.5A output load one synchronous buck regulator with a 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 a fixed output voltage of 12V. 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.
Features
- Buck Converter:
- 4.5V to 72V input voltage
- Fixed output voltage 12V
- 500mA output load capability
- 0.6Ω high-side MOSEFT rDS(ON)
- Fixed switching frequency 350kHz operation
- 6V standby function by STBY pin setting
- High-side OCP, UVP, UVLO, OTP faultprotection
- 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
Typical applications
- Motor driver control board power supply, Electric-bike power management