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ADM1070:  - 48 V Hot Swap Controller in SOT-23 with Linear Current Limiting

Product Details

The ADM1070 -48 V hot swap controller is designed for central office applications. The space-saving SOT-23 package occupies just 25% of the board area of an 8 pin SOIC solution. The device utilizes a linear current control method and protects the supply from in-rush currents (board insertion) and short circuits (board failure). The ADM1070 also provides protection during voltage steps associated with card re-seating. It current limits under all conditions.


  • Central Office Switching
  • -48 V Distributed Power Systems
  • Negative Power Supply Control


  • Allows safe board insertion and removal from a live -48V backplane
  • Operates from a typical -36V to -80V
  • Tolerates transients up to -200V (limited by external components)
  • Accurate programmable linear current limit for inrush control
  • Programmable time-out in current limit
  • Auto-restart after current limit time-out
  • Shutdown after 7 consecutive auto-restarts
  • Default timing provided with no osc cap
  • Single pin under/overvoltage detection
  • Programmable under/overvoltage time filter
  • Small 6-pin SOT-23 package
  • See datasheet for additional information

Typical Application Circuit Diagram for ADM1070


Title Content Type File Type
ADM1070: -48 V Hot Swap Controller Data Sheet  (Rev 0, 09/2002) (pdf, 336 kB) Data Sheets PDF
AN-591: ADM1070 Hot Swap Controller  (pdf, 96 kB)
This App Note Describes Operation of the ADM1070 Under Various Hot Swap Insertion and Removal Conditions.
Application Notes PDF
Webcast: Hot Swap Design, How to Get it Right
This webcast closely examines the components of a hot swap design and find out what's critical to getting it right.
Webcasts WEBCAST
Hot Swap Controller Maximizes System Up-Time Technical Articles HTML
Temperature monitor measures three thermal zones
by Susan Pratt, Analog Devices, Inc. (EDN, 12/11/03)
Technical Articles HTML
Power System Management (Spring 2007)  (pdf, 1170 kB) Overview PDF
Hot Swap And Power Monitoring Bulletin  (pdf, 3226 kB) Solutions Bulletins PDF
RAQs index Rarely Asked Questions HTML
Glossary of EE Terms Glossary HTML

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Price, packaging, availability

ADM1070 Model Options
Model Package Pins Temp.
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
ADM1070ART-REEL7 Status: Production 6 ld SOT-23 6 Ind Reel, 3000 - $1.82 N  Material Info PCN Purchase Sample
ADM1070ARTZ-REEL Status: Last Time Buy 6 ld SOT-23 6 Ind Reel, 10000 - - Y  Material Info PCN/PDN Purchase
ADM1070ARTZ-REEL7 Status: Production 6 ld SOT-23 6 Ind Reel, 3000 - $1.57 Y  Material Info PCN Purchase
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

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