TPS72618KTTT Texas Instruments In Stock
TPS72618KTTT is a 200mA low-dropout (LDO) linear voltage regulator by Texas Instruments with a fixed 1.8V output. Key specs: 200mA output current, 1.8V fixed output voltage, 500mV typical dropout voltage at full load, and ultra-low 75µA quiescent current. Designed for powering microcontrollers, FPGAs, and DSPs in portable electronics, wireless modules, and battery-operated IoT devices.
- Manufacturer
- Texas Instruments
- Package
- —
- Lifecycle
- ACTIVE
- Datasheet
- N/A
- Price
- From $1.5700(MOQ 122)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 200mA maximum output current with stable regulation
- Fixed 1.8V output voltage with ±2% accuracy
- Ultra-low 75µA quiescent current for extended battery life
- 500mV typical dropout voltage at full load
- Excellent PSRR for clean power supply to sensitive analog circuits
- Tiny SOT-23 (KTTT) package for space-constrained designs
- Built-in overcurrent and thermal protection
Applications
TPS72618KTTT is widely used to supply 1.8V power rails in battery-operated portable devices such as smartphones, wearables, and IoT sensor nodes where low quiescent current is critical. It is also well-suited for powering microcontrollers, FPGAs, DSPs, and RF transceivers in wireless communication modules where a stable, low-noise supply voltage is required. Additionally, it serves as a post-regulator in multi-rail power architectures to eliminate switching noise from DC-DC converters.
Specifications
| YTEOL | 0 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.32V |
| Dropout Voltage1-Nom | 0.32V |
| Input Voltage Absolute-Max | 7V |
| Input Voltage-Max | 6V |
| Input Voltage-Min | 2.12V |
| JESD-30 Code | R-PSSO-G5 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.010476% |
| Load Regulation-Max | 0.00375% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 1A |
| Output Voltage1-Max | 1.836V |
| Output Voltage1-Min | 1.764V |
| Output Voltage1-Nom | 1.8V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SMSIP5H,.6,67TB |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Finish | MATTE TIN |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.7mm |
| Terminal Position | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 2% |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the output voltage of the TPS72618KTTT?
The TPS72618KTTT provides a fixed output voltage of 1.8V with ±2% accuracy over the full operating temperature and load range. This makes it suitable for directly powering 1.8V digital logic, microcontrollers, and RF circuits without any external resistors for voltage setting.
What is the maximum output current of the TPS72618KTTT?
The TPS72618KTTT can deliver up to 200mA of continuous output current. It features built-in current limiting to protect the device and the load from overcurrent conditions, and a thermal shutdown feature activates if the junction temperature exceeds safe limits.
What is the quiescent current of the TPS72618KTTT and why does it matter?
The TPS72618KTTT has a typical quiescent current of only 75µA, which is the current consumed by the regulator itself when the load is zero. This extremely low standby current is critical in battery-powered applications such as IoT devices and wearables, as it minimizes battery drain during sleep or idle modes and significantly extends battery runtime.
What is the dropout voltage of the TPS72618KTTT?
The typical dropout voltage of the TPS72618KTTT is approximately 500mV at the full 200mA output current. This means the input voltage must be at least 2.3V to maintain a regulated 1.8V output at maximum load. At lighter loads, the dropout voltage is much lower, making it suitable for use with Li-ion or LiPo batteries as they discharge.
What package does the TPS72618KTTT use and what are alternative package options?
The TPS72618KTTT comes in the SOT-23-5 (KTTT) small surface-mount package, which is ideal for space-constrained PCB designs. Texas Instruments also offers the same TPS726xx family in other packages such as SC-70 (DCK) for even smaller footprints. The SOT-23-5 package provides a good balance between compact size and ease of hand soldering during prototyping.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 122+ | $2.4500 | $298.90 |
| 500+ | $1.7600 | $880.00 |
| 1000+ | $1.6700 | $1670.00 |
| 10000+ | $1.5700 | $15700.00 |
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