Power drive-ASP4644S
ASP4644S is a power management chip developed by Ansilic, fully compatible with LTM4644, featuring high efficiency, low ripple, and high current capability. The chip's specifications such as power efficiency, current, and input/output range are consistent with those of the LTM4644 chip, and its ripple performance under typical operating conditions is superior to LTM4644.
This chip supports an input voltage range of 4V to 14V and an output voltage range of 0.6V to 5.5V, delivering 4A output current per channel and up to 16A of total output current via four-channel paralleling. Only external input and output capacitors are required, effectively saving users’ PCB layout space. This chip is AEC-Q100 automotive qualified. Moreover, it is hardened with advanced radiation-resistant technology, featuring radiation performance specifications of SEL ≥ 75MeV·cm²/mg and SEU ≥ 75MeV·cm²/mg. This makes it well-suited for applications such as commercial space.
Product Details
- Input range: 4V～14V
- Output range: 0.6V～5.5V
- Ripple: Typical value 4.5mV
- Fast Transient Response
- ±1.5% total output voltage error
- Output voltage tracking
- Frequency synchronization
- Overvoltage protection, overcurrent protection, overtemperature protection
- SEU : ≥75MeV.cm²/mg or times/device·day
- SEL : ≥75MeV.cm²/mg
- Tape-out, Packaging, Testing and certification
- Operating Temperature Range: -55°C~125°C
- Package Type: 9mm×15mm×4.46mm BGA77
- Radiation resistance: SEU≥75MeV.cm²/mg or 10^(-5) times/device.daySEL≥75MeV.cm²/mg.
- Automotive specification certification: AEC-Q100.
典型应用
卫星通信载荷 FPGA/GPU 内核供电
遥感卫星 CMOS 图像传感器供电
星载数据采集与处理系统
卫星电源分配单元（PDU）
Product Manual
ASP4644S 数据手册V1.2.pdf
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