特性
- Buck Converter
- 4.5V to 72V input voltage
- Fixed output voltage 12V or 6V
- 500mA output load capability
- 0.6Ω high-side MOSEFT rDS(ON)
- Fixed switching frequency 350kHz in CCM operation
- Pulse skipping mode in DCM operation
- Standby function by STBY pin setting output voltage
- 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
描述
The RAA212832 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 is fixed at either 6V or 12V, which is controlled by the STBY pin. 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 provides a compact, highly integrated power management solution. Its integrated buck regulator and LDO outputs minimize system component count.
产品参数
| 属性 | 值 |
|---|---|
| Topology [Rail 1] | Buck |
| Outputs (#) | 3 |
| Input Voltage (Min) [Rail 1] (V) | 4.5 |
| Input Voltage (Max) [Rail 1] | 72 |
| Output Voltage (Min) [Rail 1] (V) | 6 |
| Output Voltage (Max) [Rail 1] (V) | 12 |
| Output Current (Max) [Rail 1] (A) | 0.5 |
| Switching Frequency Range (Typical) (kHz) | 350 - 350 |
| Control Type | Current Mode |
| Peak Efficiency (%) | 91 |
| IQ [Rail 1] (µA) | 325 |
| SYNCH Capability | No |
| Qualification Level | Standard |
| Temp. Range (°C) | -40 to +125°C |
| Simulation Model Available | N/A |
封装选项
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| SOICN-EP | 4.9 x 3.9 x 1.40 | 8 | 1.3 |
应用方框图
 | 人形机器人电池管理系统 集成式人形机器人 BMS，可实现安全、实时的功率管理、保护及电池状态控制。 |
 | 自主移动机器人（AMR） 具备 AI 功能的 AMR 系统，集实时控制、可扩展电源和紧凑设计于一体。 |
 | 无人驾驶飞行器（UAV） 集 AI 视觉、精确电机控制和智能电池管理功能于一体的 UAV 系统。 |
 | 便携式 EV 充电器 便携式直流充电器，适用于由 48V 电池组供电的电动汽车，具有蓝牙连接功能。 |
其他应用
- Electric-bike power management
- Motor driver control board power supply
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Sync Buck Eval Board with 14V to 72V Vin Range, 12V 500mA Buck Output, 5V 100mA and 3.3V 50mA LDO Outputs
The RTKA212832DR0000BU provides a simple platform to demonstrate the performance of RAA212832, a synchronous buck regulator with 2 low-dropout regulator (LDO) outputs. The evaluation board can support a wide input voltage range of 14V to 72V. The buck output is 12V capable of 500mA. The buck... 阅读详情
