EN
The RAZDCDC4644G is a quad DC/DC step-down µModule (micromodule) regulator with 4A per output. Outputs can be paralleled in an array for up to 16A capability. Included in the package are the switching controllers, powerFETs, inductors and support components. Operating over an input voltage range of 4V to 14V or 2.375V to 14V with an external bias supply, the LTM4644/LTM4644-1 supports an output voltage range of 0.6V to 5.5V. Its high efficiency design delivers 4A continuous (5A peak) output current per channel. Only bulk input and output capacitors are needed.
1. Product Features
*Space grade products available（Space grade products have been reinforced with radiation resistance and have reached G3 standards, which can meet the requirements of commercial aerospace applications.）
*Quad-channel output step-down micromodule regulator with 4A current per output
*Wide input voltage range: 4V~20V
*0.6V~5V adjustable output voltage
*4A DC output current per channel
*±1.5% total output voltage regulation
*Current mode control, fast transient response
*Higher output current can be provided by parallel connection
*Output voltage tracking
*Internal temperature sensing diode output
*External frequency synchronization
*Overvoltage, overcurrent and overtemperature protection
*9mm × 15mm × 5.01mm BGA package
*Operating temperature range: -55℃~125℃
2. Product Applications
*Multi-rail load point regulation,
*FPGA, DSP, and ASIC applications
