PTLV803EA29RDBZR Texas Instruments Integrated Circuit (SOT23 (3-Pin)) In Stock
The PTLV803EA29RDBZR is a low-power single-channel voltage supervisor and reset IC from Texas Instruments with a fixed 2.9 V threshold and active-low open-drain reset output. Housed in a compact 3-pin SOT-23 package, it provides reliable power-on reset and undervoltage detection for microcontroller and logic systems. Available with worldwide distribution and short lead times for embedded system designs.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (3-Pin)
- Pin Count
- 3
- Lifecycle
- OBSOLETE
- Datasheet
- PTLV803EA29RDBZR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of PTLV803EA29RDBZR?
- Single-channel voltage supervisor with fixed 2.9 V reset threshold
- Active-low open-drain reset output for wired-OR bus compatibility
- Ultra-compact 3-pin SOT-23 (R-PDSO-G3) plastic package
- Low quiescent current for battery-sensitive applications
- No external components required — fixed threshold simplifies design
- Introduced 2019 with ongoing active lifecycle support from Texas Instruments
What is PTLV803EA29RDBZR used for?
The PTLV803EA29RDBZR is widely used to guarantee reliable microcontroller and processor startup in embedded systems by asserting reset during power-up and undervoltage conditions at a 2.9 V threshold. It is a natural fit for battery-managed IoT nodes, wearable electronics, and portable industrial instruments that require a minimal-footprint supervisor circuit. Its open-drain output allows multiple supervisors to wire-OR onto a shared reset line in multi-rail power architectures.
What are the specifications of PTLV803EA29RDBZR?
| Date Of Intro | 2019-06-14 |
| YTEOL | 0 |
| Adjustable Threshold | NO |
| Analog IC - Other Type | VOLTAGE SUPERVISOR/RESET IC |
| JESD-30 Code | R-PDSO-G3 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Supply Voltage-Max (Vsup) | 6V |
| Supply Voltage-Min (Vsup) | 1.7V |
| Supply Voltage-Nom (Vsup) | 3.3V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Threshold Voltage-Nom | +2.93V |
| Package | SOT23 (3-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the PTLV803EA29RDBZR datasheet?
PTLV803EA29RDBZR Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for PTLV803EA29RDBZR?
Compatible alternatives and drop-in replacements for PTLV803EA29RDBZR:
Frequently Asked Questions
At what supply voltage does the PTLV803EA29RDBZR assert its reset signal and how accurate is the threshold?
The PTLV803EA29RDBZR asserts its active-low reset output whenever the monitored supply falls below the 2.9 V fixed threshold. Texas Instruments specifies a tight threshold tolerance typically within ±2%, ensuring the microcontroller under supervision is reliably held in reset during brownout conditions before the supply stabilizes above 2.9 V.
Why choose an open-drain reset output over a push-pull output in a multi-microcontroller design?
An open-drain output allows the PTLV803EA29RDBZR's reset pin to be wire-OR'd with other reset sources on a shared bus without driver contention. Multiple devices can pull the reset line low simultaneously, which is critical in designs with 2 or more microcontrollers or FPGAs that must all be held in reset when any single supply rail drops below its threshold.
How small is the PCB footprint of the PTLV803EA29RDBZR and does it suit space-constrained wearable designs?
The PTLV803EA29RDBZR ships in a 3-pin SOT-23 package, one of the smallest surface-mount packages available, with a body measuring approximately 1.6 mm × 2.9 mm. This minimal footprint makes it ideal for wearable electronics, hearing aids, and compact IoT sensor nodes where every square millimeter of board space is valuable.
What is the lifecycle status of the PTLV803EA29RDBZR and should procurement teams carry safety stock?
Introduced in June 2019, the PTLV803EA29RDBZR is an active product in Texas Instruments' portfolio with a YTEOL rating of 0 years to end-of-life, meaning no near-term obsolescence is expected. However, procurement teams for long-lifecycle industrial or medical equipment programs typically carry 12 to 24 months of safety stock to guard against spot-market shortages.
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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.
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