Product details


Number of supplies monitored 2 Threshold voltage 1 (Typ) (V) 2.63, 2.93, 4.55 Features Active-low enable, Manual reset, Watchdog timer, PFI/PFO Output driver type/reset output Active-low, Push-pull Time delay (ms) 200 VCC (Max) (V) 6 Rating Catalog VCC (Min) (V) 2 Watchdog timer WDI (sec) 1.6 Operating temperature range (C) -40 to 85 open-in-new Find other Supervisor & reset ICs

Package | Pins | Size

HVSSOP (DGN) 8 15 mm² 3 x 4.9 SOIC (D) 8 19 mm² 4.9 x 3.9 SOIC (D) 8 19 mm² 3.91 x 4.9 open-in-new Find other Supervisor & reset ICs


  • Power-On Reset Generator With Fixed Delay Time of 200 ms (No External Capacitor Needed)
  • Precision Supply Voltage Monitor: 2.5 V, 3 V,
    3.3 V, and 5 V
  • Pin-for-Pin Compatible With the MAX705 Through MAX708 Series
  • Integrated Watchdog Time (TPS3705-xx Only)
  • Voltage Monitor for Power-Fail or Low-Battery Warning
  • Maximum Supply Current of 50 µA
  • 8-Pin MSOP and 8-Pin SOIC Packages
  • Temperature Range: –40°C to 85°C

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The TPS370x-xx family of microprocessor supply-voltage supervisors provide circuit initialization and timing supervision, primarily for DSP and processor-based systems.

During power-on, RESET is asserted when the supply voltage VDD becomes higher than 1.1 V. Thereafter, the supply voltage supervisor monitors VDD and keeps RESET active as long as VDD remains below the threshold voltage VIT+. When the supply voltage drops below the threshold voltage VIT–, the output becomes active (low) again. No external components are required. All the devices of this family have a fixed-sense threshold voltage VIT– set by an internal voltage divider.

The product spectrum is designed for supply voltages of 2.5 V, 3 V, 3.3 V, and 5 V. The circuits are available in either 8-pin MSOP or standard SOIC packages. The TPS370x-xx devices are characterized for operation over a temperature range of −40°C to 85°C.

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Technical documentation

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Type Title Date
* Datasheet TPS370x-xx Processor Supervisory Circuits With Power-Fail datasheet (Rev. E) Jul. 24, 2017
More literature Voltage Supervisor and Reset ICs: Tips, Tricks and Basics Jun. 28, 2019
Technical articles A New Understanding: Blast Motion redefines movement, tracking and training for athletes. Aug. 06, 2014
Technical articles Improving Fly-Buck Regulation Using Opto (Part-1) Jul. 15, 2014
Technical articles Altium and WEBENCH – together at last Jul. 12, 2014
Technical articles Using telemetry in point-of-load applications Jun. 24, 2014

Design & development

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Reference designs

High efficiency power supply architecture reference design for protection relay processor module
TIDA-010011 — This reference design showcases various power architectures for generating multiple voltage rails for an application processor module, requiring >1A load current and high efficiency . The required power supply is generated using 5-, 12- or 24-V DC input from the backplane. Power supplies are (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
HVSSOP (DGN) 8 View options
SOIC (D) 8 View options

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