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Semtech SC21150
微型 1.2A 同步降压稳压器

The SC21150 is an ultra high efficiency 1.2A DC/DC buck regulator available in a tiny CSP package. These features make the SC211 50 family perfect for small form factor portable applications where long battery life is essential. SC21150 is an Adaptive On-Time 4MHz switching regulator at full load conditions. Under light load conditions it seamlessly transitions into Power Save Mode and reduces switching frequency thus saving energy. High switching frequency operation allows the use of a very small 0.47μH inductor along with small input and output capacitors to minimize overall circuit size. A Forced PWM input allows continuous switching under all load conditions.
Overview
Features
- 输入电压范围:2.3V 至 5.5 V
- 持续输出电流:1.2 A
- 4MHz 开关频率
- 可调输出电压
- 0.8 V 至输入电压
- 输出电压精度:1%
- 自适应导通时间架构
- 高达 100% 的占空比
- 高达 96% 的峰值效率
- 支持高效轻载运行的节电模式
- 30 mA 至 75 mA 时,效率 > 90%
- 关断电流为 1 μA
- 23 μA 静态电流
- 预偏置启动保护
- 内部软启动或可选外部软启动
- 元器件选项(请联系 Semtech 营销部门)
- 自动输出放电
- 电源正常指示灯
- 内部软启动
- 外部可编程软启动
- 强制 PWM 操作输入
- 0.75 mm x 1.11 mm 6-凸块 WLCSP 封装
- 符合 WEEE 和 RoHS 标准,且无卤素
Applications
- 汽车
- 智能手机
- 可穿戴式电子产品
- Packaging
- SC21150ACSTRT:符合 WEEE 和 RoHS 标准且无卤素,5000 颗。
- SC21150EVB:评估板
Order Codes
- 汽车
- 智能手机
- 可穿戴式电子产品
Diagrams and Specs
Key Specifications
Datasheets and Resources
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