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
Key Features
- 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
Applications
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.
Specifications
| 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 |
Alternate & Equivalent Parts
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.
Related Guides
CL31A107MQHNNNE 1206 100 uF MLCC Selection Guide
How to choose CL31A107MQHNNNE and related 1206 MLCCs for low-voltage bulk capacitance and regulator stability.
Jul 2, 2026
CL05B103KB5NNNC 0402 10 nF X7R MLCC Selection Guide
How to choose CL05B103KB5NNNC and related 0402 MLCCs for bypassing, filtering, voltage derating, and sourcing.
Jul 2, 2026
ADAQ7768-1 Design Guide for Precision Vibration and Dynamic Signal Measurement
Design ADAQ7768-1 precision data acquisition channels for vibration and dynamic sensing with the right bandwidth, reference, clock, and layout choices.
Jun 30, 2026
AD5204BRZ10 Design Guide for SPI-Controlled Gain and Offset Calibration
Design AD5204BRZ10 digital potentiometer calibration loops with bounded trim span, safe wiper current, clean SPI routing, and reliable startup codes.
Jun 30, 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.
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.”