AX5511 Boost Converter

最新推荐文章于 2025-08-22 12:09:46 发布

转载最新推荐文章于 2025-08-22 12:09:46 发布 · 113 阅读

文章标签：

#c/c++

AX5511是一款适用于小型低功耗应用的电流模式升压转换器，输入电压范围为2.6V至5.5V，可设置的输出电压最高可达27V。工作频率固定为1.2MHz，支持使用小型外部电感和电容器，并提供快速瞬态响应。内置软启动功能减少浪涌电流并延长电池寿命。在轻载条件下，AX5511能自动从脉宽调制(PWM)模式切换到脉冲频率调制(PFM)模式，进一步提高效率。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

GENERAL DESCRIPTION
The AX5511 is a current mode step up converter intended for small, low power
applications. The converter input voltage ranging from 2.6V to 5.5V. The Output voltage can be set up to 27V. The frequency is 1.2MHz allows the use of small external inductors and capacitors and provides fast transient response. Internal soft start results in small inrush current and extends battery life. Internal power MOSFET with very low RDS (ON) provides high efficiency. The AX5511 automatically transits from PWM to PFM during light load condition further increasing efficiency. The converter also provides protection functions such as under-voltage lockout, current limit and thermal shutdown. The AX5511 is available in 5-pin TSOT23 package.

FEATURES
- 2.6V to 5.5 V operating input voltage range
- Adjustable output voltage range up to 27V
- 1.2MHz Fixed Switching Frequency
- Internal soft-start function
- Current limit and Thermal shutdown protection
- Under voltage Lockout
- ≤ 1μA Shutdown Current
- Available in the 5-pin TSOT23 Package