RH1965

PRODUCTION

Radiation Hardened 0.9A, Low Noise, Low Dropout Linear Regulator with Shutdown

Part Models: 1
1ku List Price: Starting From $444.05

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Overview

Processed in Compliance with LTC Certified MIL-PRF-38535 Class V Flow
Output Current: 0.9A
Typical Dropout Voltage: 300mV at 0.9A
Low Noise: 40μV_RMS (10Hz to 100kHz)
<1μA Quiescent Current in Shutdown
500μA Quiescent Current
Wide Input Voltage Range: 1.8V to 20V
No Protection Diodes Needed
Controlled Quiescent Current in Dropout
Adjustable Output from 1.2V to 19.5V
Stable with 10μF Tantalum Output Capacitor

Reverse-Battery Protection
No Reverse Current
Current Limit with Foldback Protection
Thermal Limiting
Radiation Performance
- Total Ionizing Dose (TID) Tolerance, per TM1019.8, MIL-STD-883:
  - 200kRad (Si), per condition A at 50Rads(Si)/sec
  - 100kRad (Si), per condition D at 10mRads(Si)/sec
  - ELDRS Pass 100kRad(Si)

The RH1965 is a radiation hardened low noise, low dropout linear regulator with an integrated PNP pass transistor that operates from a single supply of as little as 1.8V. It can supply up to 0.9A of output current with a 300mV typical dropout voltage, dependent on the internal bond wire length/resistance of the chosen package.

Output voltage range is adjustable from 1.2V to 19.5V by means of a resistor divider on the output. Operating quiescent current is 500μA, reducing to <1μA in shutdown. Quiescent current is well controlled and does not rise in dropout as with many other regulators. The RH1965 regulator has very low output noise that is ideal for sensitive RF and DSP supply applications.

The RH1965 has been optimized for tantalum output capacitors and is stable with values as low as 10μF with an ESR of less than 1Ω. Applications with large output load transients require a larger output capacitor value to minimize output voltage change. Internal protection circuitry includes reverse-battery protection, current limiting with foldback, thermal limiting and reverse-current protection.

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
MSK5965RH	0.9A Adjustable LDO Regulator

Applications

Logic Power Supplies
Post Regulator for Switching Supplies
Low Noise Instrumentation

Part Models: 1
1ku List Price: Starting From $444.05

Documentation

Data Sheet 1

RH1965: Radiation Hardened 0.9A, Low Noise, Low Dropout Linear Regulator with Shutdown Data Sheet 09/10/2015

Controlled Drawings 1

Generic RH Dice Spec Document (Rev.A) 05/08/2025

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
RH1965MKDICE	CHIPS OR DIE	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Aug 30, 2022 - 22_0196 Test Site Transfer of RH, SMD, Class-S, Special Flow, MIL-STD-883 Products from Analog Devices Milpitas to ADGT
		PCN22_0196_Form Material_Report Qualification Results Summary Qualification Results Summary Qualification Results Summary Test Correlation Report Test Correlation Report Test Correlation Report Other
RH1965MKDICE	PRODUCTION
Oct 5, 2020 - 20_0294 Golden Altos as an Alternate Assembly Plant for Radiation Hardened/ Military Products in TO39 and dies sales.
		PCN20_0294_Form Material_Report Qualification Results Summary
RH1965MKDICE	PRODUCTION
Sep 17, 2020 - 20_0296 ADI Philippines as an Alternate Assembly Plant for Radiation Hardened Products in Cerpak and Die Sales.
		PCN20_0296_Form Material_Report Qualification Results Summary Qualification Results Summary Qualification Results Summary
RH1965MKDICE	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Tools & Simulations

LTspice

Models for the following parts are available in LTspice:

LT1965
LT1965B

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

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