onsemi / Fairchild FAN49100 TinyPower 降压升压调节器
仙童 FAN49100 TinyPower 降压升压调节器是一款高效降压升压开关模式调节器，可以接受高于或低于输出稳压的输入电压。FAN49100 可以传输高达 2A 的电流，同时将输出电压稳定在 3.3V， 同时使用具有同步整流功能的全桥结构。FAN49100 可以在升压和降压模式间无缝切换，从而减少输出干扰。
特性
- 24µA typical PFM quiescent current
- Above 95% efficiency
- Total layout area = 11.61mm2
- Input voltage range: 2.5V to 5.5V 1.8MHz fixed-frequency operation in PWM mode
- Automatic/seamless step-up and step-down mode transitions
- Forced PWM and automatic PFM/PWM mode selection
- 0.5µA typical shutdown current
- Low quiescent current pass-through mode
- Internal Soft-start and output discharge
- Low ripple and excellent transient response
- Internally set, automatic safety protections (UVLO, OTP, SCP, OCP)
应用
- Smartphones
- Tablets, netbooks, ultra-mobile PCs
- Portable devices with Li-ion battery
- 2G/3G/4G power amplifiers
- NFC
Block diagram
发布日期: 2015-10-19
| 更新日期: 2022-03-11