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RH1573K
  • RH1573K

RH1573K

PRODUCTION

Radiation Hardened Low Dropout PNP Regulator Driver

Analog Devices RH1573K Product Info

10 February 2026 4

Features

  • MIL-PRF-38535 Class V Compliant Dice
  • Drives External PNP Transistor
  • Output Currents up to 5A
  • Typical Dropout Voltage 0.22V at 2.5A
  • Fast Transient Response Reduces Output Capacitance
  • Latching Overload Protection
  • Precision Output Voltage: ±2% after 200Krad TID exposure
  • Single Supply Operation: VIN = 2.8V to 10V
  • Shutdown

Radiation Performance

  • Total Ionizing Dose (TID) Tolerance, per TM1019.8, MIL-STD-883:
    • 200kRad (Si), per condition A at 50Rads(Si)/sec
    • 50kRad (Si), per condition D at 10mRads(Si)/sec
    • ELDRS Pass 50kRad(Si)
  • Displacement Damage Defect (DDD) up to 1E12 Neutrons/cm2

All product configurations can be found in the MSK product table in the Product Details tab

Part details & applications

The RH1573 is a regulator driver IC designed to provide a solution for applications requiring high current, low dropout and fast transient response. When driving an external PNP power transistor, this device provides load current up to 5A with a dropout voltage as low as 0.35V. The RH1573 circuitry is designed for extremely fast transient response. This greatly reduces the output capacitance requirements when the regulator is used in applications with fast, high current load transients. The RH1573 uses a time-delayed latching overcurrent protection technique that requires no external sense resistor. Base drive is limited for instantaneous protection, and a time-delayed latch protects the regulator from continuous short circuits.

Third Party Vendor Availability

Analog Devices partners with third party vendors who assemble and test packaged products with RH Dice inside.

For MSK prefix products please click on the Part Number in the table below and scroll down the linked page to find the part number.

Part Number Description
MSK5805 1A Adjustable, Ultra Low Drop Out Regulator