TPS72118DBVRG4 Texas Instruments Integrated Circuit (SOT23 (5-Pin)) In Stock
The TPS72118DBVRG4 is a low-noise, low-dropout linear regulator delivering 150 mA output from a 1.8 V to 5.5 V input with 150 mV typical dropout voltage in a 5-pin SOT-23 package. Its 0.0067% maximum line regulation and fixed output make it ideal for noise-sensitive portable electronics.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (5-Pin)
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- TPS72118DBVRG4 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of TPS72118DBVRG4?
- 150 mV typical dropout voltage enables efficient regulation from near-equal input-output voltages in battery-powered designs
- Low-noise output supports ADC reference and RF supply rails where switching regulator ripple would degrade signal integrity
- Fixed output voltage with 0.0067% line regulation provides highly stable supply for precision analog and mixed-signal circuits
What is TPS72118DBVRG4 used for?
The TPS72118DBVRG4 is well suited for battery-powered portable devices requiring a clean, stable supply for noise-sensitive analog subsystems. Its 1.8 V minimum input enables operation directly from single-cell Li-ion batteries near end-of-discharge, maintaining regulated output until the cell reaches low state-of-charge. The 5-pin SOT-23 footprint fits space-constrained wearables, IoT sensors, and handheld medical instruments where RF or ADC performance depends on supply cleanliness.
What are the specifications of TPS72118DBVRG4?
| YTEOL | 15 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.2V |
| Dropout Voltage1-Nom | 0.15V |
| Input Voltage Absolute-Max | 7V |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 1.8V |
| JESD-30 Code | R-PDSO-G5 |
| JESD-609 Code | e4 |
| Line Regulation-Max | 0.0067% |
| Load Regulation-Max | 0.0005% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.15A |
| Output Voltage1-Max | 1.854V |
| Output Voltage1-Min | 1.746V |
| Output Voltage1-Nom | 1.8V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSOP5/6,.11,37 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, LOW PROFILE, SHRINK PITCH |
| Packing Method | TR |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.95mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 3% |
| Package | SOT23 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the TPS72118DBVRG4 datasheet?
TPS72118DBVRG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for TPS72118DBVRG4?
Compatible alternatives and drop-in replacements for TPS72118DBVRG4:
Frequently Asked Questions
How low can the input voltage drop before TPS72118DBVRG4 drops out of regulation at 150 mA load?
TPS72118DBVRG4 has a typical dropout voltage of 150 mV and maximum of 200 mV at 150 mA output current. This means on a 1.8 V regulated output, the input can fall as low as 1.95 V before regulation is lost, enabling extended battery run-time on single-cell lithium-ion supplies near end-of-discharge.
Why is TPS72118DBVRG4 preferred over switching regulators for ADC reference supply in portable instruments?
Switching regulators produce output ripple from 10 mV to 100 mV at switching frequencies of 1 MHz or higher, which couples into ADC reference rails and degrades effective number of bits. TPS72118DBVRG4's low-noise LDO architecture eliminates this ripple, delivering a clean reference supply that preserves 12-bit or higher ADC accuracy in handheld measurement equipment.
What is the line regulation performance of TPS72118DBVRG4 and why does it matter for mixed-signal designs?
TPS72118DBVRG4 achieves a maximum 0.0067% line regulation, meaning output voltage shifts less than 100 µV per 1 V input change at typical output levels. This stability prevents supply-induced gain errors in operational amplifier circuits and ensures analog front-end accuracy is not compromised by battery voltage fluctuations across a 1.8 V to 5.5 V input range.
For an IoT node powered by 2 AA alkaline cells, how does TPS72118DBVRG4 maintain stable operation as batteries discharge?
Two fresh AA alkaline cells provide approximately 3.0 V, falling to 2.0 V near end-of-life. With 150 mV dropout, TPS72118DBVRG4 maintains a regulated 1.8 V output until input drops below 1.95 V, extracting significantly more capacity from the 2-cell battery pack compared to LDOs with 500 mV or higher dropout voltages.
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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.
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