Radiation Hardened Low Dropout PNP Regulator Driver

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

MSK5823-1.8RH

3A Ultralow Dropout Fixed Voltage Regulator

MSK5823-2.5RH

3A Ultralow Dropout Fixed Voltage Regulator

MSK5824RH

3A Ultralow Dropout Fixed Voltage Regulator

MSK5825-2.5RH

3A Ultralow Dropout Fixed Voltage Regulator

MSK5825-3.3RH

3A Ultralow Dropout Fixed Voltage Regulator

MSK5826RH

3A Ultralow Dropout Fixed Voltage Regulator

MSK5800RH

4A Ultralow Dropout Adjustable Regulator

MSK5810RH

5A Ultralow Dropout Adjustable Regulator, Split Bias

MSK5820-1.5RH

5A Ultralow Dropout Fixed Voltage Regulator

MSK5820-1.8RH

5A Ultralow Dropout Fixed Voltage Regulator

MSK5820-1.9RH

5A Ultralow Dropout Fixed Voltage Regulator

MSK5820-2.5RH

5A Ultralow Dropout Fixed Voltage Regulator

MSK5820-2.8RH

5A Ultralow Dropout Fixed Voltage Regulator

MSK5820-3.3RH

5A Ultralow Dropout Fixed Voltage Regulator

MSK5820-5.0RH

5A Ultralow Dropout Fixed Voltage Regulator

MSK5821RH

5A Ultralow Dropout Fixed Voltage Regulator

MSK5822-1.5RH

5A Ultralow Dropout Fixed Voltage Regulator

MSK5822-1.9RH

5A Ultralow Dropout Fixed Voltage Regulator

MSK5822-2.5RH

5A Ultralow Dropout Fixed Voltage Regulator

MSK5822-2.8RH

5A Ultralow Dropout Fixed Voltage Regulator

MSK5822-3.3RH

5A Ultralow Dropout Fixed Voltage Regulator

MSK5822-5.0RH

5A Ultralow Dropout Fixed Voltage Regulator

Applications

* Satellite System Power Supplies

* Post Regulator for Switching Supplies

* Ultra Low Dropout Applications

* Low VIN Single Supply Regulators (e.g. 3.3V to 2.5V)

* 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