LTC1696 - Overvoltage Protection Controller


  • ±2% Overvoltage Threshold Accuracy
  • Low Profile (1mm) ThinSOTTM Package
  • Gate Drive for SCR Crowbar or External N-Channel Disconnect MOSFET
  • Monitors Two Output Voltages
  • Senses Output Voltages from 0.8V to 24V
  • Wide Supply Range: 2.7V to 27V
  • Multifunction TIMER/RESET Pin

Typical Application

LTC1696 Typical Application
LTC1696 Typical Application


The LTC®1696 is a standalone power supply overvoltage monitor and protection device designed to protect a power supply load in the event of an overvoltage fault. It monitors two adjustable output voltages. If an overvoltage condition is detected, the output drives either an external SCR crowbar or turns off external back-to-back N-channel MOSFETs, thereby, disconnecting the input voltage from the power supply.

Pin 6 offers three functions. By connecting a capacitor to this pin, the internal glitch filter time delay can be programmed. Without the capacitor, the default time delay is determined by an internal capacitor. This pin also serves as a reset input to clear the internal latch after an overvoltage fault condition. By pulling it high, the OUT pin is activated if the FB1 and FB2 voltages remain below the trip threshold.

The LTC1696 is available in the low profile (1mm) ThinSOT package.


CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.

For complete and up to date package information and drawings, please refer to our packaging page

Part Number Package Code Temp Package
LTC1696ES6#PBF SOT-23 S6 E 05-08-1636 Yes
LTC1696ES6#TRMPBF SOT-23 S6 E 05-08-1636 Yes
LTC1696ES6#TRPBF SOT-23 S6 E 05-08-1636 Yes
LTC1696HS6#PBF SOT-23 S6 H 05-08-1636 Yes
LTC1696HS6#TRMPBF SOT-23 S6 H 05-08-1636 Yes
LTC1696HS6#TRPBF SOT-23 S6 H 05-08-1636 Yes
LTC1696IS6#PBF SOT-23 S6 I 05-08-1636 Yes
LTC1696IS6#TRMPBF SOT-23 S6 I 05-08-1636 Yes
LTC1696IS6#TRPBF SOT-23 S6 I 05-08-1636 Yes

LTC1696 Package Drawing

Order Info

  • Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
  • Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
  • Please refer to our general ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number Package Temp Price
LTC1696ES6#PBF SOT-23 E $2.07 Yes
LTC1696ES6#TRMPBF SOT-23 E $2.07 $1.78 Yes
LTC1696ES6#TRPBF SOT-23 E $2.07 $1.76 Yes
LTC1696HS6#PBF SOT-23 H $3.11 Yes
LTC1696HS6#TRMPBF SOT-23 H $3.11 $2.23 Yes
LTC1696HS6#TRPBF SOT-23 H $3.11 $2.18 Yes
LTC1696IS6#PBF SOT-23 I $2.69 Yes
LTC1696IS6#TRMPBF SOT-23 I $2.69 $1.93 Yes
LTC1696IS6#TRPBF SOT-23 I $2.69 $1.88 Yes
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* 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 Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

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