MSK5044RH是Linear公司的一款合乎航天使用要求的开关稳压器产品，MSK5044RH是RH1959 – Radiation Hardened 4.5A, 500kHz Step-Down Switching Regulator，本站介绍了MSK5044RH的封装应用图解、特点和优点、功能等，并给出了与MSK5044RH相关的凌力尔特元器件型号供参考。
MSK5044RH - RH1959 – Radiation Hardened 4.5A, 500kHz Step-Down Switching Regulator
RH1959 – Radiation Hardened 4.5A, 500kHz Step-Down Switching Regulator - Linear Technology（凌力尔特）
The RH1959 is a 500kHz monolithic buck mode switching regulator with a 4.5A integrated switch that will operate down to 1.21V. High switching frequency allows a considerable reduction in the size of external components. The topology is current mode for fast transient response and good loop stability.
A special high speed bipolar process and new design techniques achieve high efficiency at high switching frequency. Efficiency is maintained over a wide output current range by keeping quiescent supply current near 3.3mA and by utilizing a supply boost capacitor to saturate the power switch.
Full cycle-by-cycle short-circuit protection and thermal shutdown are provided. Standard surface mount external parts are used, including the inductor and capacitors. Optional shutdown and synchronization functions are available. Implementing shutdown reduces supply current to 30μA. Synchronization allows an external logic level signal to increase the internal oscillator from 580kHz to 1MHz.
Third Party Vendor Availability
Linear Technology partners with third party vendors who assemble and test packaged products with LTC RH Dice inside.Part NumberDescriptionSCD or SMD#MSK5044RHSwitching Reg. Module,500kHz Fixed FrequencyViewMSK5048RHSwitching Reg. Module,500kHz With Ext Sync OptViewMSK5052RHSwitching Reg. Module,500kHz With Ext Sync Opt-MSK5059RHSwitching Reg. Monolithic (RH1959 IC Only)View
