LTC2934 - Ultra-Low Power Adjustable Supervisor with Power-Fail Output


  • 500nA Quiescent Current
  • ±1.5% (Max) Accuracy over Temperature
  • Operates Down to 1.6V Supply
  • Adjustable Reset Threshold
  • Adjustable Power-Fail Threshold
  • Early Warning Power-Fail Output
  • Selectable 15ms or 200ms Reset Timeout
  • Manual Reset Input
  • Compact 8-Lead, 2mm × 2mm DFN and TSOT-23 (ThinSOT) Packages

Typical Application

LTC2934 Typical Application
LTC2934 Typical Application


The LTC2934 ultra-low power voltage monitor provides system initialization, power-fail warning and reset generation functions. Low quiescent current (500nA typical) makes the LTC2934 an ideal choice for battery-operated applications.

Precision power-fail and reset voltages can be configured independently. Early warning of an impending low volt- age condition is provided at the power-fail output (PFO) when the PFI input falls below 0.4V. Supervisory circuits monitor the ADJ input and pull RST low when ADJ falls below 0.4V. When ADJ is rising from an under-threshold condition, an internal reset timer is started after exceeding the ADJ threshold by 5%. The reset timeout delays the return of the RST output to a high state. A pushbutton switch connected to the MR input is typically used to force a manual reset. Outputs RST and PFO are available with open-drain (LTC2934-1) or active pull-up circuits (LTC2934-2). Operating temperature range is from –40ºC to 85ºC.


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
LTC2934CDC-1#PBF 2x2 DFN-8 DC8 C 05-08-1719 Yes
LTC2934CDC-1#TRMPBF 2x2 DFN-8 DC8 C 05-08-1719 Yes
LTC2934CDC-1#TRPBF 2x2 DFN-8 DC8 C 05-08-1719 Yes
LTC2934CDC-2#PBF 2x2 DFN-8 DC8 C 05-08-1719 Yes
LTC2934CDC-2#TRMPBF 2x2 DFN-8 DC8 C 05-08-1719 Yes
LTC2934CDC-2#TRPBF 2x2 DFN-8 DC8 C 05-08-1719 Yes
LTC2934CTS8-1#PBF SOT-23 TS8 C 05-08-1637 Yes
LTC2934CTS8-1#TRMPBF SOT-23 TS8 C 05-08-1637 Yes
LTC2934CTS8-1#TRPBF SOT-23 TS8 C 05-08-1637 Yes
LTC2934CTS8-2#PBF SOT-23 TS8 C 05-08-1637 Yes
LTC2934CTS8-2#TRMPBF SOT-23 TS8 C 05-08-1637 Yes
LTC2934CTS8-2#TRPBF SOT-23 TS8 C 05-08-1637 Yes
LTC2934IDC-1#PBF 2x2 DFN-8 DC8 I 05-08-1719 Yes
LTC2934IDC-1#TRMPBF 2x2 DFN-8 DC8 I 05-08-1719 Yes
LTC2934IDC-1#TRPBF 2x2 DFN-8 DC8 I 05-08-1719 Yes
LTC2934IDC-2#PBF 2x2 DFN-8 DC8 I 05-08-1719 Yes
LTC2934IDC-2#TRMPBF 2x2 DFN-8 DC8 I 05-08-1719 Yes
LTC2934IDC-2#TRPBF 2x2 DFN-8 DC8 I 05-08-1719 Yes
LTC2934ITS8-1#PBF SOT-23 TS8 I 05-08-1637 Yes
LTC2934ITS8-1#TRMPBF SOT-23 TS8 I 05-08-1637 Yes
LTC2934ITS8-1#TRPBF SOT-23 TS8 I 05-08-1637 Yes
LTC2934ITS8-2#PBF SOT-23 TS8 I 05-08-1637 Yes
LTC2934ITS8-2#TRMPBF SOT-23 TS8 I 05-08-1637 Yes
LTC2934ITS8-2#TRPBF SOT-23 TS8 I 05-08-1637 Yes

LTC2934 Package Drawing
LTC2934 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
LTC2934CDC-1#PBF 2x2 DFN-8 C $1.69 Yes
LTC2934CDC-1#TRMPBF 2x2 DFN-8 C $1.69 $1.20 Yes
LTC2934CDC-1#TRPBF 2x2 DFN-8 C $1.15 Yes
LTC2934CDC-2#PBF 2x2 DFN-8 C $1.69 Yes
LTC2934CDC-2#TRMPBF 2x2 DFN-8 C $1.69 $1.20 Yes
LTC2934CDC-2#TRPBF 2x2 DFN-8 C $1.15 Yes
LTC2934CTS8-1#PBF SOT-23 C $1.69 Yes
LTC2934CTS8-1#TRMPBF SOT-23 C $1.69 $1.20 Yes
LTC2934CTS8-1#TRPBF SOT-23 C $1.15 Yes
LTC2934CTS8-2#PBF SOT-23 C $1.69 Yes
LTC2934CTS8-2#TRMPBF SOT-23 C $1.69 $1.20 Yes
LTC2934CTS8-2#TRPBF SOT-23 C $1.15 Yes
LTC2934IDC-1#PBF 2x2 DFN-8 I $1.94 Yes
LTC2934IDC-1#TRMPBF 2x2 DFN-8 I $1.94 $1.37 Yes
LTC2934IDC-1#TRPBF 2x2 DFN-8 I $1.32 Yes
LTC2934IDC-2#PBF 2x2 DFN-8 I $1.94 Yes
LTC2934IDC-2#TRMPBF 2x2 DFN-8 I $1.94 $1.37 Yes
LTC2934IDC-2#TRPBF 2x2 DFN-8 I $1.32 Yes
LTC2934ITS8-1#PBF SOT-23 I $1.94 Yes
LTC2934ITS8-1#TRMPBF SOT-23 I $1.94 $1.37 Yes
LTC2934ITS8-1#TRPBF SOT-23 I $1.32 Yes
LTC2934ITS8-2#PBF SOT-23 I $1.94 Yes
LTC2934ITS8-2#TRMPBF SOT-23 I $1.94 $1.37 Yes
LTC2934ITS8-2#TRPBF SOT-23 I $1.32 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.

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