RAA212831 72V 0.5A Step-Down Regulator Demonstration Board
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...
Overview
Description
The RAA212831 is a triple output regulator combining a 4.5V to 72V input, 0.5A buck regulator with two LDO outputs. The buck regulator has a fixed switching frequency of 350kHz in Continuous Conduction mode (CCM) and operates in pulse-skipping mode at lighter loads when it enters Discontinuous Conduction mode (DCM). The two LDOs operate from a 12V (or lower) input voltage. The LDOs are rated at 100mA and 50mA of output current. The buck regulator output can be set from 1.25V to VIN×Dmax. The LDOs can support an input voltage range of 6V to 12V, and the output voltages are fixed at 3.3V and 5V. The IC is designed to provide a compact, highly integrated power management solution. Its integrated buck regulator and LDO outputs minimize system component count.
Features
- 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 in CCM operation
- Pulse skipping mode in DCM operation
- 6V standby function by external components
- 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
- 4.5V to 12V input voltage
- Fixed output voltage 3.3V
- 50mA output load capability
- Current limit foldback function
- SOIC8-E package
Comparison
Applications
Applications
- Electric-bike power management
- Motor driver control board power supply
Documentation
= Featured Documentation
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| Datasheet | PDF 3.26 MB | |
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Design & Development
Boards & Kits
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Processing table
RAA2128314GSP#HA0 Active Samples Available
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2033 Dec | SOICN-EP | Reel | 2 | 0.964 | Get Samples, |
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