Analog Devices Inc. LT8471双通道多拓扑直流/直流转换器
Linear Technology/Analog Devices LT8471双通道、多拓扑直流/直流转换器包含两个内部2A、50V开关和一个额外的500mA开关以简化降压和负输出转换。LT8471的2A通道可独立地配置为一个降压、升压、SEPIC、反激式或负输出转换器。该转换器能够采用单个输入电压轨产生正输出和负输出。LT8471是许多局部电源设计的理想选择。
特性
- Dual 2A and one 500mA, 50V internal power switch channels
- 2A primary channels can be Buck, Boost, SEPIC, ZETA, Flyback, or Inverting DC/DC converter
- 500mA Skyhook channel efficiently generates boosted input voltage
- 2.6V to 50V wide input voltage range
- UVLO and OVLO programmable on OV/UV pin
- Fixed frequency PWM (set by RT pin or synchronized to external clock)
- Soft-start programmable for each channel
- Anti-phase switching reduces input rpple
- 20-lead TSSOP and 28-lead QFN packages
Block Diagram
发布日期: 2017-05-25
| 更新日期: 2022-04-14