MSK5044RH - MSK5044RH是RH1959 Radiation Hardened 4.5A, 500kHz Step-Down Switching Regulator

MSK5044RH是LINEAR凌力尔特公司的一款合乎航天使用要求的开关稳压器产品，MSK5044RH是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LINEAR元器件型号供参考。

MSK5044RH - MSK5044RH是RH1959 Radiation Hardened 4.5A, 500kHz Step-Down Switching Regulator - 合乎航天使用要求的开关稳压器 - 航天和严酷环境 - 凌力尔特

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）

功能描述

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

特点

MIL-PRF-38535 Class V Compatible Dice *

Operates with Input as Low as 4V

Output Voltages Down to 1.21V

Constant 500kHz Switching Frequency

Synchronizable to 1MHz

Internal Slope Compensation

Cycle-by-Cycle Current Limiting

Integrated 4.5A Switch

Current Mode Control

应用

以下列出了不同封装及包装形式的具体型号,并标出了直接在linear官网上订货的价格（美元）