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RICHTEK RT8110BGJ8
Configuration
1 options
Configuration
22+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- RICHTEK RT8110BGJ8
- Type
- RICHTEK
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- RICHTEK
- Electronic Component
- RT8110BGJ8
- Electronic Component
- 1
- Package
- TSOT-23-8
- Electronic Component
- DC-DC Power Supply IC
- Electronic Component
- 0.037g
- Electronic Component
- 1
- Features
- Built-in LDORegulator
- Type
- Electronic Component
- Synchronous
- Electronic Component
- Electronic Component
- BM0230063874
- Operating Temperature
- 40℃~+125℃
- Operating Voltage
- 10V~28V
- Switching Frequency
- 400kHz
- Electronic Component
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
RT8110BGJ8 产品概述
一、总体简介
RT8110BGJ8 是 RICHTEK（立锜）推出的一款高集成度降压型（Buck）DC-DC转换器，采用 TSOT-23-8 小型封装，面向 10V～28V 输入电压平台，工作温度范围 -40℃～+85℃ (TA)。器件内置高低侧开关管和同步整流，开关频率固定为 400kHz，支持单路可调输出，静态电流仅 3mA，适合在车载、工业与通信等受限空间与中高输入电压场景下实现高效率、低成本的点对点供电。
二、主要功能与特性
- 降压拓扑，输入电压范围：10V ～ 28V（适配 12V / 24V 系统）。
- 开关频率：400kHz，平衡效率与外部元件尺寸。
- 同步整流结构，提高轻载及中载效率，减少外部二极管成本。
- 内置开关管（高/低侧），简化布局与外部器件设计。
- 可调输出电压，通过外部分压电阻设定目标电压。
- 低静态电流（Iq ≈ 3mA），利于待机与节能设计。
- 内置 LDO 稳压器，可为内部电路或参考电源提供稳定电压域。
- 保护功能：过流保护（OCP）、打嗝限流与保护锁死（latch-off），提高系统可靠性。
- 小型 TSOT-23-8 封装，便于空间受限应用。
三、典型应用场景
- 车载电子：车内摄像头、仪表、车身控制模块（注意符合车规设计要求）。
- 工业控制与自动化设备：点位供电、传感器电源模块。
- 通信与安防设备：监控摄像、电源管理模块。
- 一般 10–28V 电源域的嵌入式系统电源。
四、设计要点与建议
- 电感选择：依据输出电流与允许纹波电流选择低直流电阻（DCR）且具足够电流额定值的功率电感；400kHz 允许使用体积较小的磁芯。
- 输出电容：推荐使用低 ESR 的陶瓷电容（MLCC）与必要时并联钽/固态电容以稳定输出与缓冲瞬态。
- 布局：开关节点、输入/输出电容和分流路径应尽量靠近芯片引脚，缩短高 di/dt 回路，降低 EMI。
- 热设计：尽管芯片集成度高，但在大电流条件下需关注封装热阻与散热，必要时通过 PCB 铜箔散热增强热流散逸。
- 保护策略：利用芯片内置的打嗝限流与锁死机制应对短路与严重过载，同时在系统层面设计软启动与限流策略以改善可靠性。
五、总结
RT8110BGJ8 以其宽输入范围、内置开关与同步整流、低静态电流以及多重保护特性，适合在车载与工业等 10–28V 电源域中实现体积小、效率高、可靠性强的降压解决方案。采用 TSOT-23-8 小封装，有利于紧凑型电源模块设计。在实际设计中应重视磁性元件、输出滤波与热管理，以发挥器件最佳性能。若需进一步的电气参数、典型电路或 PCB 布局示例，可参考 RICHTEK 官方数据手册或联系供应商技术支持。
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