TPS3618-50DGKT Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The TPS3618-50DGKT is a 5 V battery-backup supervisor IC for RAM retention with a 4.55 V reset threshold and integrated power-on reset generator, housed in an 8-pin SOIC package for embedded memory backup applications.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- TPS3618-50DGKT Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.0800(MOQ 10)
- 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 TPS3618-50DGKT?
- 5 V battery-backup supervisor for SRAM/NVRAM data retention
- Fixed 4.55 V reset threshold with power-on reset generation
- Single-channel supervisor in compact 8-pin SOIC package
- Automatic switchover control between primary and backup supply
- Monitors supply voltage continuously with low quiescent current
- Supports battery-backed memory systems without external discrete components
What is TPS3618-50DGKT used for?
The TPS3618-50DGKT is used in embedded systems with battery-backed SRAM or NVRAM that must retain critical data during power outages, such as industrial PLCs, smart meters, and real-time clock modules. It monitors the 5 V primary supply and asserts reset when voltage drops below 4.55 V, ensuring clean handover to the backup battery. Data logging devices and point-of-sale terminals rely on this supervisor to prevent memory corruption during power transitions.
What are the specifications of TPS3618-50DGKT?
| Pbfree Code | Yes |
| YTEOL | 15 |
| Additional Feature | RESET THRESHOLD VOLTAGE IS 4.55V; POWER ON RESET GENERATOR |
| Adjustable Threshold | NO |
| Analog IC - Other Type | BATTERY BACKUP SUPERVISOR |
| JESD-30 Code | S-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP8,.19 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 0.04mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 1.65V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Threshold Voltage-Nom | +4.55V |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the TPS3618-50DGKT datasheet?
TPS3618-50DGKT Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TPS3618-50DGKT?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
At what voltage level does the TPS3618-50DGKT assert a reset signal?
The TPS3618-50DGKT has a fixed reset threshold of 4.55 V. When the primary 5 V supply drops below this level, the device asserts its reset output and initiates battery-backup mode to preserve SRAM or NVRAM contents, ensuring no data corruption occurs during power-loss events.
Which memory retention scenarios is the TPS3618-50DGKT designed to handle?
The TPS3618-50DGKT is specifically designed for SRAM and NVRAM retention applications operating from a 5 V rail. It handles both brief glitches and extended power outages by switching automatically to a backup battery supply, making it well-suited for industrial data loggers, PLCs, and medical device memory management systems requiring uninterrupted data integrity.
How does the built-in power-on reset generator of the TPS3618-50DGKT simplify system design?
The integrated power-on reset generator in the TPS3618-50DGKT eliminates the need for an external RC reset circuit, reducing component count and board space. It generates a clean reset pulse whenever VCC rises above 4.55 V during power-up, ensuring the connected processor or memory controller starts reliably from a defined initial state every time.
What is the package and form factor of the TPS3618-50DGKT for PCB layout planning?
The TPS3618-50DGKT comes in an 8-pin SOIC (S-PDSO-G8) package with a 1.27 mm pin pitch, a standard small-outline footprint that is widely available, easily hand-solderable, and fits in tight board areas alongside the RAM chips it protects. Its small size supports high-density PCB layouts with battery-backup circuitry.
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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.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
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| 10+ | $3.5870 | $35.87 |
| 25+ | $3.3032 | $82.58 |
| 98+ | $3.0600 | $299.88 |
| 100+ | $2.9912 | $299.12 |
| 500+ | $2.2100 | $1105.00 |
| 1000+ | $2.0800 | $2080.00 |
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