TPS3125J12DBVTG4 Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
Texas Instruments TPS3125J12DBVTG4 is a processor supervisor IC with 0.85 V threshold monitoring, watchdog timer, and manual reset input in a 5-pin SOT-23 package. Provides power-on reset generation and manual reset capability for reliable microcontroller supervision. Available from stock worldwide with competitive pricing.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- OBSOLETE
- Datasheet
- TPS3125J12DBVTG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TPS3125J12DBVTG4?
- 0.85 V fixed threshold voltage supervisor monitors low-voltage processor rails common in modern sub-1 V core supply designs
- Integrated watchdog timer and manual reset input provide dual-layer fault protection without requiring external discrete supervisory components
- Power-on reset generator ensures controlled processor startup sequencing, preventing spurious execution during supply ramp-up conditions
- Ultra-compact 5-pin SOT-23 package minimizes PCB area consumption while delivering complete supervisory functionality for space-constrained embedded designs
What is TPS3125J12DBVTG4 used for?
The TPS3125J12DBVTG4 is used in microcontroller and DSP-based systems to ensure reliable startup and recovery from software lockups through its watchdog timer function. It is well suited for industrial control panels, automotive body electronics, and IoT edge nodes where unattended operation requires automatic system reset on fault conditions. The manual reset input also supports front-panel reset buttons in embedded systems and test fixtures requiring controlled processor restart capability.
What are the specifications of TPS3125J12DBVTG4?
| YTEOL | 0 |
| Additional Feature | MANUAL RESET INPUT; POWER-ON RESET GENERATOR |
| Adjustable Threshold | NO |
| Analog IC - Other Type | VOLTAGE SUPERVISOR/RESET IC |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e4 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP5/6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 0.025mA |
| Supply Voltage-Max (Vsup) | 3.3V |
| Supply Voltage-Min (Vsup) | 0.85V |
| Supply Voltage-Nom (Vsup) | 1.2V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the TPS3125J12DBVTG4 datasheet?
TPS3125J12DBVTG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TPS3125J12DBVTG4?
Compatible alternatives and drop-in replacements for TPS3125J12DBVTG4:
Rochester Electronics LLC 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO5, GREEN, PLASTIC, SOT-23, 5 PIN
Frequently Asked Questions
What voltage threshold does the TPS3125J12DBVTG4 monitor?
The TPS3125J12DBVTG4 monitors a fixed 0.85 V threshold. When the monitored supply voltage drops below this level, the device asserts its reset output to hold the processor in reset. This sub-1 V threshold is designed for modern low-voltage processor core supplies common in advanced CMOS technology nodes.
Does the TPS3125J12DBVTG4 include a watchdog timer?
Yes, the TPS3125J12DBVTG4 incorporates a watchdog timer (WDT). If the processor fails to toggle the watchdog input within the programmed timeout period, the device asserts a reset, recovering the system from software hangs or infinite loops without human intervention, which is essential for unattended industrial and embedded applications.
What is the manual reset input used for on the TPS3125J12DBVTG4?
The manual reset input (MR) allows an external signal or push-button to force the supervisor to assert its reset output regardless of the supply voltage level. This feature enables controlled software-initiated resets, front-panel reset buttons, and automated test sequences that need to restart the processor under known conditions.
What package does the TPS3125J12DBVTG4 use?
The TPS3125J12DBVTG4 is packaged in a 5-pin SOT-23 (JESD-30 code R-PDSO-G5), one of the smallest commercially available surface-mount packages. Despite its tiny footprint, the SOT-23 provides all five required connections for a full-featured supervisor, making it ideal for area-constrained designs on modern high-density PCBs.
Is the TPS3125J12DBVTG4 RoHS compliant?
Yes, the TPS3125J12DBVTG4 carries JESD-609 code e4, confirming it is lead-free and RoHS compliant. The plastic/epoxy package body meets halogen-free material standards, making this device suitable for products that must comply with European Union RoHS and REACH environmental directives.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“Response time is incredible — usually under 4 hours. They understand that production lines can't wait.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit